Observations

Disclaimer: Fate/Stay Night is the property of Type-Moon and Geneon. No money is earned by me for this simple fanfic.

'*' Thoughts
"*" Spoken words

Lemon Content Warning: This fic contains sexual situations and should not be read by anyone under the age of 18.

Fate/Stay Night:

Observations

The early morning light filtered through the windows of the Matou residence, a few specks of dust in the air allowing the beams to be seen clearly against the background darkness of the room. In this mixture of darkness and light sat Shinji Matou, brooding while sitting in the shadows, which would have struck others as the most appropriate place for the young man. During this lovely day, he was harboring dark thoughts about one whom he had once considered a friend, Shirou Emiya, and his blasted Servant, Saber. In Shinji's opinion, Shirou was a less than useless magician, only able to perform the most perfunctory of spells, and this, combined with his inherent good nature, and desire to protect others from harm, made him a pathetic competitor in the Holy Grail Wars.

But somehow, this most unworthy of magicians had managed to summon Saber, the most powerful of the Servant classes. While she may not have had the sheer strength of a Berserker, or the speed of his own Rider, her all around capabilities made her a Servant to be coveted. Shinji knew that Rin Tohsaka, a fellow student and mage, had tried very hard to summon Saber, but despite all her effort and training, she'd ended up summoning Archer. Had the stakes not been so high, Shinji might have taken amusement at the way things had turned out, but every time he imagined Rider going up against Saber, he pictured her being soundly defeated.

To try to improve his own chances, Shinji had talked to Shirou earlier, and proposed that the two of them form a temporary alliance against Rin, who was easily the most powerful magician of the three of them, but he'd been rejected outright. Shirou and Rin were already working together to take down the barrier he was attempting to erect at the school to make his own Servant more powerful, and Shinji suspected, quite rightly, that Shirou didn't trust him.

"I have to do something about Saber," Shinji seethed to himself. The easiest way to take her out of play was to kill her Master, but this wouldn't be as simple as it looked at first blush. Saber would quite literally give her life to protect him, and she'd respond to any attempt to kill Shirou with lethal force, and Shinji was doubtful of Rider's ability to protect him. As well, with Rin and her Servant in an alliance with Shirou, he now had one high level mage and two Servants watching his back. Even if he appeared to be alone, he could instantly summon Saber with his Command Seals, turning an apparent rout into a desperate battle.

Shinji rubbed the bridge of his nose in frustration; he needed more information, more options for dealing with Shirou and Saber. "I need to learn more…" He then started, as an obvious solution appeared to him. "So why not have him watched? Rider!" Shinji called out.

The tall, graceful, purple-haired Servant materialized into being next to Shinji. "You summoned me Master?"

"Yes Rider, I have a… task… for you…"

"What is it?" Rider inquired.

"Your target is Shirou Emiya…"

"Master of Saber?"

"Yes, him. You are to place him under surveillance…"

"Surveillance? To what end?" Rider asked.

"I want you to learn everything you can about him," Shinji explained. "Anything that we could use against him later… Habits, routines, anything that would allow us to be a step ahead of him."

"So, I will not engage him or Saber in combat?"

"No, avoid Saber at all costs… If you can't observe him without being discovered by Saber, back away. This is about information, not combat," Shinji reiterated.

A thin smile turned up the corners of Rider's mouth. "I understand. It shall be done…" With that, she faded away, leaving Shinji alone with his thoughts.

"Soon…" he murmured quietly. "Just you wait Shirou… Soon…"

***

Shirou Emiya increased his rate of breathing as he pedaled faster, a load of groceries balanced precariously on the handlebars of his bike as he made his way back to his home. His ribs were a little sore, a result of his morning training session with Saber, her shinai having become quite familiar with his torso, as it had spent a great deal of time there, and against his head. She had told him that he was getting better, but he still couldn't touch her, feeling like he'd have better luck trying to strike at the wind. Saber hadn't even seemed to exert herself during the training, he hadn't seen her sweat, and she just kept at it relentlessly. Her expression never wavered, her coldly focused look making him feel like he was wasting her time.

'She sure eats a lot though,' he mused, casting his eyes to the groceries he was carrying. With Saber, and now Rin living with him, his grocery bill had risen markedly, and he was considering asking his employer if he could work some more hours to help cover the new expenses. 'At least she lets me use the bath first now… It's not like she looks haggard after the training.' It had taken some time, but he'd finally convinced Saber to show a little modesty when she was using the bath, and Shirou hadn't had a repeat of the show he'd gotten after the first time they'd trained. As an image of a nude Saber entered his mind, Shirou couldn't keep himself from wondering if that was a good thing or not.

Zipping down the sidewalk on his bicycle, dodging pedestrians as he went, Shirou slowed down as he approached a collection of police cars and ambulances with their lights flashing. 'What's going on?' he wondered. 'Another Servant battle?' He dismissed that idea out of hand, as it was barely noon yet, and according to Ilya, you weren't supposed to fight in the daylight. 'Plenty of witnesses too, probably just a natural accident…' Fuyuki City seemed to have more than its fair share of misfortunes, but Shirou was certain that the Grail Wars couldn't be responsible for all of them. As he slowed to a stop and dismounted, he heard people talking, and he picked out the words 'gas-leak' several times.

Feeling relief that the Grail Wars hadn't claimed anymore innocent victims, at least for the moment, Shirou pondered what to do next. The police had barricaded the street off, and he couldn't continue on home; his best hope was to walk his bike back a block or two and cut over to another street. With the crowd on the sidewalk, that would take some time, but he didn't think that he had a choice. Sighing, he turned his bike around and began to work his way through the throng when another option presented itself. A narrow alleyway between two buildings connected this street with a parallel one on the next block, and Shirou eased his bike into it, smiling at this unexpected good fortune.

But as he walked further into it, Shirou began to have second thoughts; it was dark, with no sunlight penetrating into the narrow corridor, and a feeling of claustrophobia gripped him. He couldn't hear any noise other than his own footsteps, the racket from the street failing to reach the lonely alley, giving him the strange feeling of being on another world. Shirou quickened his walk, his ears straining to hear the slightest disturbances, his eyes locked on the exit to the alley, viewing it as an escape from this threatening phalanx. A clatter from in front of him made him freeze, his left hand clenching, the cry to summon Saber working its way up his throat, when a stray white cat ran across his path.

Shirou watched the little animal running away with a feeling of relief and embarrassment washing over him, a grim chuckle escaping his lips. "I should switch to decaf, this Grail business is making me jumpy…" he chastised himself. Shaking his head and chuckling at his foolishness, Shirou never sensed Rider materializing behind him, and never saw the blow to the back of his head that knocked him out, Rider catching him before he fell, easily supporting his unconscious weight, a thin smile gracing her masked face.

***

'Jeez… Saber didn't have to hit me THAT hard,' was the first coherent thought that passed through Shirou's head as he slowly regained consciousness. He blinked, looking up at the ceiling and trying to remember when he'd had sodium lights installed in the dojo, as his mind continued with the reboot after the sudden shut-down. As his memory came back on-line, he recalled grocery shopping, biking home, detouring down the alley- 'What happened?!' Shirou lurched up and cried out in surprise when he found himself restrained, just now becoming aware that he was tied down. He looked frantically at his wrists and ankles, an icy cold grip of fear taking hold of his heart when he discovered that he was chained to a bed. The dire implications of that made sweat break out on his forehead, as he also noted, with surreal clarity, that his shoes had been removed.

Straining in an attempt to free himself, Shirou looked around at his surroundings, trying to figure out where he was. A faint odor of grease and oil wafted into his nose, and he could see that the floor was bare concrete, with steel beams rising to the roof, making him think of an old factory or warehouse. The stark emptiness of the building made the bed that he was securely chained to seem almost absurd, as Shirou ceased his efforts to free himself, discovering that he was bound solidly, and that there was no way he'd be able to get himself free.

Shirou glanced at his left hand, eyeing the Command Seals on the back of it. He could summon Saber, though it would cost him one of those seals, but it didn't look like he had an option right now. He clenched his fist and took a deep breath, but just as he was about to call for her, he felt something metal and pointy pressed against his throat. Vainly attempting to pull back from the unwelcome presence, Shirou's eyes crossed almost comically as he eyed the weapon warily, before letting his eyes travel up it's length, coming to rest on the blindfolded visage of Shinji Matou's Servant, Rider.

He saw her smile thinly at him, shaking her head slowly, before she moved her left finger to her lips in a 'sshhh…' gesture, the unspoken threat, 'Summon Saber and you're dead before she gets here…' obvious. The pressure against his neck increased slightly, and Shirou desperately tried to pull away from the spike, but he could move only a fraction of an inch, nowhere near enough to get clear. He watched in horrified fascination as she brought her other spike to her lips and slowly ran her tongue along its edge. She let out a faint chuckle as he found himself shaking in abject terror, believing that his lifespan was now measurable in minutes, if not seconds.

A wave of intense hatred, more powerful than any emotion he'd ever experienced before, came over him, directed at Shinji and his Servant. Cursing his own stupidity and his display of weakness, Shirou steeled his resolve, making an effort to not show fear, be defiant in the face of impending death. Hardening his expression, Shirou locked his gaze onto Rider, willing himself to not tremble, determined to hide his panic, and not give her or Shinji the satisfaction of seeing him beg for his life.

His resolve was put to the test when Rider placed her second spike under the first and slowly dragged it downward, a tearing noise reaching Shirou's ears as the tip of the weapon sliced open his shirt. Part of him wondered how her weapon, which was basically an oversized nail, could cut cloth, but it was as effective as a scalpel. When she reached the hem of his shirt, Rider used the spike to open up the now rent halves, exposing Shirou's chest to the air.

Shirou felt Rider pull back the spike under his throat a little, and he cast his eyes downward, frantically wondering how badly he'd been cut, and wishing that Rider would simply kill him instead of torturing him. He was beyond surprised to discover that he wasn't even scratched, much less cut, but he wondered if she was simply delaying the inevitable. Shirou had to bite his lip to keep from yelping in panic when she placed her spike on his bare chest, the metal feeling unnaturally cold, and traced it over his skin, making him think that she was simply contemplating the best place to shove it in.

Rider moved her spike to Shirou's right wrist, placed the point on the cuff, and dragged it up the length of his arm, cutting the sleeve cleanly, further ruining his shirt, before repeating it with the left. With his shirt now in tatters, Shirou began to shiver in the cool air, though it was certainly compounded by fear. When Rider moved her weapon to the right cuff of his pants, Shirou tried desperately to shrink in on himself, his heart racing as he again heard the sound of fabric ripping, and he whimpered uncontrollably as it moved relentlessly towards his groin. She stopped when she reached the waistband, but he could feel a draft along his leg he hadn't been able to a few moments earlier.

"C-can't you j-just do it?" Shirou rasped in impotent frustration. "S-show some d-decency, get it over with…" He nearly sobbed when he felt Rider repeat the action on his left leg, completely destroying his pants and leaving him practically naked, with only his boxer shorts and socks to protect his modesty. A moment later, only his socks remained, as Rider effortlessly cut off his shorts, leaving him draped only in rags, and she tugged them away, leaving a humiliated and ashamed Shirou naked on the bed, tears welling up in his eyes, the last shred of his dignity stripped away.

Shirou closed his eyes in an attempt to focus himself, planning to summon Saber, vowing that even if Rider stabbed him through the throat, he'd make sure he lived long enough to order her to kill Rider and Shinji, who he silently cursed for putting him through this, when he felt a new sensation on his chest. Opening his eyes, Shirou gasped involuntarily at the sight of Rider running her tongue along his right pectoral, the heat from the contact finally registering with him. The call to summon Saber died on his lips as Rider planted a kiss on the skin she'd just tasted, before biting it, hard enough to leave a mark, but not breaking the skin.

Staring in stunned amazement, flinching as Rider bit him a second time, Shirou noted that the spike was no longer pressed against his throat, though it hadn't been taken completely away. He began to shudder for a different reason when Rider dragged her tongue across his chest, eventually reaching his left nipple, trilling it for a few seconds before she took it between her lips and sucked on it, forcing him to stifle a cry.

Rider lifted her head and seemed to look right into Shirou's eyes, even with the blindfold covering hers. "There's no need to be shy, Shirou…" she whispered. "No one will hear you…"

The vaguely threatening implication of that remark nearly made Shirou's heart rate double, but he couldn't suppress a groan when Rider moved so that she was effectively straddling him, his prick tingling at the new stimulation. She was warm, supple, and seemed to mould herself to his contours, her dress feeling smoother than satin against his skin, the occasional bite she gave him serving as contrast. His shoulders ached as he found himself straining to move his arms in response, only able to push his hips up a little as she lay on top of him. Shirou let out a hiss as Rider began to slowly kiss her way up his chest, lingering for several minutes around his collarbone, kissing and biting her way along their length.

'Is-is she going to BITE me again?' Shirou frantically wondered as Rider moved her lips to the side of his neck. The trails of warmth the kisses left felt incredible, but if she was simply toying with him before killing him, he had no way to stop her, he couldn't even pull away. He let out a frightened shriek when he felt Rider's teeth brush against his skin, but he nearly fainted with relief when she simply gave him a gentle nibble. Shirou even found himself lifting his head and exposing his throat as he felt her warm tongue sensually running over his neck. He even became aware of her hands gently running up and down his pinioned arms, her strong fingers squeezing and caressing muscles that were sore from his attempts to break free.

Rider's lips reached Shirou's right earlobe, and she took it in between her teeth, biting it until he flinched, then taking it between her lips and suckling it. She nuzzled against the side of his head for a few moments, some of her long purple hair falling against his face; Shirou had to admit to himself, Rider smelled GOOD. Faint hints of jasmine wafted into his nose, and there was no trace of any unpleasant odors like sweat or grime, just a clean freshness that reminded him of what a spring day smelled like after a light rain. It felt funny to think this, especially since she was still holding a spike near his throat in a vaguely threatening manner, but he would have said she smelled angelic.

Shirou arched his head back as far as he could as Rider ran her tongue up under his chin, bringing it to the very tip. When he had to lower it back down when it became painful, Shirou found himself freezing up when she pressed her lips softly against his, her tongue gently trying to force its way into his mouth. He tried to turn his head, but Rider held it in her hands, keeping it where it was. Shirou clenched his lips together, desperately not wanting to let himself get drawn into anything.

Rider traced the tip of her tongue around his lips, leaving blazing trails on Shirou's face that took his breath away. She started to grind herself against him, and Shirou could feel his resistance dropping. He clenched his left hand spasmodically, a sudden impulse to summon Saber running through his head, before he abandoned the thought. Surrendering to his base desires, Shirou opened his mouth and allowed his tongue to brush up against Rider's, moaning when he felt her continue to rub unabashedly against his erection.

The two of them kissed for several minutes, Rider's hair falling on Shirou's face, feeling like silken thread against his skin, her mouth tasting like flowers as she gently sucked his tongue into her mouth, tenderly clenching it in her teeth before letting go. She broke off the kiss and slid upwards a few inches, and Shirou ran his tongue along her throat, kissing her flawless, porcelain like skin, the faint hum she let out, along with the gentle kisses to his forehead making his heart race. The collar she wore wasn't very flattering to him, and if he could he would have removed it, but he did his best to kiss all the smooth, warm skin of her neck.

Rider slid back down, taking hold of Shirou's head with both her hands, forcing him to look at her as their lips met once again, both of their tongues snaking out to writhe with the others. Her hair cascaded against his face, blocking out all other sights except for her blindfold, and Shirou somehow knew that her eyes were open underneath it. She continued to push herself against his now erect prick, its hardness pressing up against her urgently, as if trying to pierce through her dress to reach her. Rider slowly crawled her way down, kissing and biting Shirou under the chin and down his chest, letting her body glide against his, the fullness of her dress-covered breasts rubbing against his bare skin.

As Rider continued to place love bites down the length of his torso, Shirou started to tremble, both from anticipation as well as fear; he found himself daring to hope that she was going to do what he thought, but scared that she'd choose that moment to reveal that she was just toying with him. She'd shown a fondness for biting so far, and the possible damage she might inflict made him swallow nervously. He looked down and saw the top of her head at his waistline and he let out a hiss when he felt her grip him in her fingers, her warm breath tickling the head of his tool. Rider gave him a slow stroke, making him squawk in surprise as she lifted her head to look at him, her gaze meeting his even with her eyes covered. She gave him a half smile that sent shivers up his spine before she stuck out her tongue and licked the underside of his prick from the base to the tip.

Shirou cried out at the liquid heat that flooded his senses, his head rolling to the side and his eyes slamming shut. 'It-it feels THAT good?!' he wondered in a daze. 'How am I supposed to stand that?' When Rider did nothing further, Shirou lifted his head and looked at her again, curious if something had gone wrong. As soon as he made eye contact again, she repeated the lick, adding a quick swirl around the head of his member for good measure. Shirou's head fell back again, a gasp forcing its way from his throat, but once again Rider didn't continue, and it wasn't until she licked him again when he looked at her, that it dawned on him that she wanted him to watch her.

Doing his best to put his head in a comfortable position, and wishing he had a pillow to support him, Shirou was treated to the captivating sight of Rider running her tongue along his erection, making it shine with her saliva, occasionally using her hand to stroke him sensually. She maintained her covered gaze upon him, and Shirou heard himself groaning at her ministrations, straining his neck muscles to keep his head up to watch her. He grit his teeth when Rider swirled her tongue around his exposed glans, first clockwise, then counterclockwise, crying out unabashedly when she opened her mouth and took the entire head between her lips.

Rider gently brushed the edge of her teeth along the sensitive skin, the combination of discomfort and pleasure making Shirou's head swim. When she eased her teeth back, the relief that flooded over him was almost exquisite, and he nearly sobbed at the feeling. Clenching his teeth in exertion, Shirou saw and felt Rider ease her head forward, the image of his cock disappearing between her lips burning into his memory, where it would haunt his thoughts and dreams for weeks to come. When her nose brushed up against his pubic hair, and he was sure he could feel himself touching the back of her throat, Rider began to caress his testicles, squeezing them gently as she pulled her head back, her cheeks drawn in as she sucked.

Shirou could feel his control slipping as Rider effortlessly deep throated him, his cries growing louder as she relentlessly pushed him towards his peak. She would pull her head back until just his head was between her lips, roll her tongue around it, then take him all back into her mouth, repeating this without hesitation, making him tense up before the inevitable release. As he felt the first warning signs of climax on the edge of his awareness, it occurred to Shirou that he didn't want to upset Rider, since her being angry at him would be hazardous to his health, so he tried to warn her. "B-be careful Rider… Unnh! I-I'm close…" he grunted, straining to hold himself off for even a second or two more.

Rider paid him no heed, actually increasing her pace and repositioning herself so that he would have better view of his first blowjob. Shirou could feel himself tighten up, his balls preparing to let fly with a truly massive burst, but an image of a maddened Rider driving one of her spikes into his throat, or worse, simply biting down, kept him from letting go. "I-I mean it… I ca-can't- Ohhh! -hold off… anymore… L-look out! Unnhh!" Shirou let out a deep groan, the world fading out around the edges as he fired off a load of his seed into Riders waiting mouth, the ecstasy of the moment marred only by fear of what Rider might do if she was upset.

The forbidden nature of what he'd just done, as well as Rider's continued sucking, made him shoot two more jets of his essence down her throat, and his head fell back, moaning in pleasure as he heard her gulping down his seed, his prick starting to go soft after the release. Shirou could feel sweat breaking out all over his body as Rider finally finished with her attentions, letting his now limp member slide from her mouth, as he panted to get his wind back. "I-I'm sorry…" he apologized weakly. "I-I couldn't hold on anymore…"

Rider didn't answer, she simply stood up while taking hold of her spikes, making the breath catch in Shirou's throat. 'I-I'm dead…' he thought in terror, his eyes locked on her unusual weapons, shuddering in fear until she simply let them fall at her sides. Still deathly afraid, Shirou shifted his eyes from the discarded spikes back to Rider, his eyes going wide when she took hold of the top of her dress and without hesitation pushed it down, exposing her bare breasts. She shifted her hips as she eased the dress past her waist, revealing a pair of purple panties, sliding it down her legs past her leggings and boots, before stepping out of it. Straightening back up, Rider used her thumbs to push down her panties, letting them fall down her legs before she stepped out of them as well.

Now dressed only in her leggings, gloves, blindfold and collar, Rider stood over an astonished Shirou, all but ordering him to look at her. As his eyes wandered over her almost of their own accord, Shirou decided that there was no way she'd have to force some one to want to see her. She was gorgeous, period; long, silky purple hair reaching just past her knees, with beautiful, mile long legs that her leggings did little to conceal the look of. Her breasts were full, bountiful, with dark nipples, but not so big as to be freakish looking. Where Saber was all lithe, toned muscle, Rider was a little more supple looking, but she would never be mistaken for being out of shape. Shirou found himself wondering what her eyes looked like, if they were purple as well; the strange rune on her forehead was blood red, and as his eyes made their way down her body, greedily taking in every detail, he noticed that she had a small strip of short pubic hair that matched the hair on her head.

It also dawned on Shirou, in a moment of clarity, that he'd soon be getting a very close look at that small patch of hair.

With a slow, sexy strut, that was as surefooted as if she'd been walking on the sidewalk instead of a bed, Rider walked over Shirou, stopping when her feet were under his outstretched arms. Looking down at him, she gave him a smile that took his breath away, as she lowered herself oh so slowly towards him, Shirou being unable to look away, mesmerized by the sight, until she sat down on his chest. Once seated, she leaned back and lifted her feet up and moved them above his head, sitting back up and leaning forward, her sex now merely inches from Shirou's face. For almost a minute, he did nothing but look, noticing how her labia were extended, a stray drop or two of her moisture running down them; he could detect a hint of jasmine, and he found that the scent wasn't unpleasant as he had heard from others. He might have stared for who knew how long, until he heard Rider clearing her throat, clearly a little impatient with him.

'I-I HAVE to do this, right?' Shirou asked himself. 'After what she did, it wouldn't be fair for me not to, right?' The part of his mind that pointed out that she'd abducted and restrained him was subsequently ignored. Licking his suddenly dry lips, and feeling a fresh wave of nervousness overtaking him, Shirou lifted his head, desperately running through everything he'd ever heard, hoping he'd recall some technique, so he wouldn't end up making a fool of himself. Holding his breath, he stuck out his tongue, but then withdrew it, and decided to try a gentle kiss first, placing the softest one he could manage at the very middle of her labia.

Shirou pulled back a bit to assess the results; nothing had really happened, she hadn't struck him in anger, but she hadn't had an earth shaking climax either. 'You didn't think it'd be THAT easy, did you?' his psyche taunted. 'There was always the hope,' he replied to himself, accepting that he was just getting started. Leaning his head forward once again, Shirou began to place kisses along the entire length of Rider's slit, some of her wetness transferring to his lips, and he experimentally licked it off, finding that Rider tasted nicer than he would have expected, and she had an almost floral hint to her. For a moment he wondered if this was normal for her, or because she was a Servant. Deciding to show a little boldness, Shirou ceased his kissing and once more extended his tongue, letting the tip slip along the fissure where Rider's labia came together.

Shirou heard Rider's breath catch in her throat, and she moved her right hand behind his head, gently supporting it, and he was able to at least relax the muscles in his neck as he continued to tease her with his tongue. He stroked the sensitive skin with his tip, slowly increasing the force so that it started to delicately separate them, allowing him a chance to probe further inside her. He wasn't surprised to discover that Rider even tasted slightly of jasmine, and he stretched his tongue out to reach even deeper. Rider began to squirm, moving her hips forward to bring herself closer to his face, and she let out a faint moan, which Shirou had to strain to be able to hear.

When he felt Rider pull his head further towards her, at the same time letting her fingers entwine in his red hair, Shirou felt reassured that he was doing something right, and so emboldened, decided to be a little experimental. Slipping his tongue out of her, and noting the soft whine Rider let out when he did, Shirou planted a tender kiss on her right labia, taking it between his lips and carefully pulling on it, sucking it as gently as he could, before he let it be slowly drawn out of his lips. He repeated this with the left one, noticing that Rider was starting to get wetter between her legs, her inner thighs now slick, and coating the lower part of his face with his saliva and her fluids. For a moment, he wanted nothing more than a chance to be able to take a second to wipe his face, but he decided that it wasn't too much of a difficulty, so he resumed placing kisses, accepting that he wouldn't be able to clean himself for a while.

Rider's folds were a light pink, contrasted nicely by the small patch of purple hair that brushed up softly against his nose. Seeing what he believed to be the clitoris, and knowing from sex-ed class that it was supposed to be especially sensitive, Shirou gave it a quick flick with his tongue, then swirled it around the small nub, hearing Rider take in a sharp breath as he did. Pleased by what he had caused, and deciding to try that again later, Shirou again slid his tongue inside her warm passage, letting it go as far as it would reach, and then lapping madly. When he had his head forced even closer to her, as she thrust her hips to grind against him, Shirou was able to lick even further, letting his tongue glide along her inner walls, pulling it almost completely out before thrusting it back inside.

Shirou was now facing a rush of moisture that he couldn't lap up, and it tricked down his cheeks and chin, running down his neck, presumably to soak into the bed sheets. He made a valiant effort, desperately trying to keep the sheets from getting more damp, and when he had a chance to glance up, he saw Rider silently gritting her teeth, her breath coming in shallow pants. While he once again felt a desire to see the look in her eyes, he found even the partial image arousing, and he decided to see what other expressions he could make appear. Easing his tongue out of Rider's slick tunnel, and taking a second or two to give it some rest, Shirou took hold of her clit between his lips, gently biting on it and sawing his teeth on its surface.

Rider let out a gasp, the loudest sound she'd made since they'd started, and Shirou could see that her mouth was open and her cheeks were flushed. She leaned forward, using her left hand to hold herself upright, while her right continued to pull Shirou against her, her panting growing more intense as he continued to tease her clit with his tongue. He lashed at her in a frenzy, determined to drive her to climax, eating her out as though his life depended on it - and as far as Shirou knew, that might have been the case. Without removing his tongue from Rider's dripping slit, he nuzzled her inner thighs with his head, the warmth and smoothness of her legs feeling wonderful against his face.

Shirou could feel himself starting to stir, even as Rider's breathing increased at a frantic rate, her hand gripping his hair tight enough that it made him wince momentarily. He started moving his own hips in a vain attempt to stimulate himself, but this accomplished nothing but making his bound legs hurt even more. He felt Rider go rigid suddenly, pulling him even tighter against herself, and when he cast his eyes upward saw that her mouth was open in a silent scream, her face contorted in a way that made him throb when he saw it. An unprecedented torrent of wetness rushed against his face as he continued to lick at her, feeling her go limp and slump against him, her left arm buckling and nearly falling onto her face.

Shirou didn't stop licking, sucking, or kissing Rider until she pushed herself back and slowly rolled off of him, leaving him with his head resting on a wet spot on the sheets, a film of moisture covering his entire face. At that moment, he would have given anything for a chance to wipe his face, but all he could do was try to use his shoulders to clean himself, and he wasn't able to do a good job. He watched Rider take a moment to compose herself, before she laid back down on top of him, giving him a languid kiss and smoothing out his hair with her fingers. She placed kisses on his face, smiling at him gently and letting her body rest against his, the warmth transferring from her to him, and he tried his best to kiss her back.

"Close your eyes Shirou," Rider told him softly.

"W-wha-?" Shirou stammered, a new feeling of dread rising in him.

"Just trust me… Close your eyes till I say you can open them…"

'Trust you…?' Shirou wondered. 'You grabbed me and trussed me up…' Despite this thought, he closed his eyes, straining his ears for the sounds of chains being moved, but hearing only a faint rustling. He was fighting the urge to peek when he felt something being placed over his eyes. Rider's hands were working behind his head, and he kept his eyes closed, despite the almost irresistible impulse to open them.

"You can open them now…" Rider whispered.

Shirou opened his eyes, but discovered that he couldn't see a thing, even when he tried looking down the side of his nose. "Is… this your blindfold?" he asked.

"Yes."

"W-why…?"

"I was wondering what it would look like on you," Rider replied, an amused tone in her voice.

"…Well, how does it look…?"

Shirou heard a faint chuckle, and felt Rider's breath tickling his ear as she moved her head closer to his. "Cute…" She then began suckling his earlobe, and took hold of his prick in her hand, and it swelled at her gentle touch, reaching its full size. Shirou bit his lip as she gently stroked him, and he could feel the bed moving as she shifted her position, sensing that she was now straddling him. Part of him wondered how Rider could do anything with the blindfold over her eyes.

"Rider," he murmured softly, as she trailed her tongue along his jaw line, biting him once along the way. He tried to kiss her, but blindfolded as he was, he kept missing, as she would pull back before his lips made contact. Shirou groaned when he felt the head of his prick brushing against Rider's inner thigh, and he could sense the heat radiating from her, so tantalizingly close, but just beyond his reach. Shirou could feel moisture from Rider transferring to his legs, a warm film that was slowly spreading over his skin where they were touching. He bit his lip to stifle a cry when she used her hand to position the tip at the very entrance to her sex, a rush of warmth firing up the length of his spine. Rider finally put her lips against his, and just as he opened his mouth to take her tongue between his lips, she sank down, engulfing his entire length, making him shout into her mouth as she impaled herself on him.

Shirou cried out, breaking the kiss as Rider lifted herself back up and then thrust herself back down effortlessly, her heat and moisture gripping him securely as she started to slide herself up and down the length of his prick. He tried to buck up his hips to answer her movements, but the chains ensured that he could barely move, forcing him to simply lie there and let Rider set the pace of their coupling. He could feel her breath on his face as she moved, her hands gripping his shoulders tightly, and he found himself wondering what her face looked like as he lifted his head up in another attempt to kiss her. Rider's hair was draped on his face and chest, a few strands of it tickling his nose, and it still smelled of jasmine, but now with traces of her musk and sweat.

Having absolutely no control over what was happening, Shirou simply surrendered, trying to let himself go loose as Rider continued to drive herself up and down on his member, letting out a pained hiss when she bit him on the clavicle. He knew that if she hadn't sucked him off first, he would have already fired off his essence, so he was able to savor the slow, almost painful increase in tension as she continued to writhe against him. It was better than he'd ever dared to hope, and he felt sweat breaking out all over his body, collecting and running down in rivulets down his forehead, getting into his eyes, the stinging salt being made worse by the blindfold Rider had put on him.

His second most fervent wish at the moment was to be able to wipe his eyes; the first was to be able to kiss Rider. He craned his head, trying to reach her, and when he couldn't reach any further, he felt her panting against his lips, and he somehow stretched even more, a surge of triumph filling him when their lips met. Shirou kissed her hungrily, all the desperation coming out as he eased his tongue into her mouth, his head slipping back, but he kept his tongue extended, feeling her sucking on it. As his head fell back she pulled his tongue as far as it would go, before she let herself get dragged down, easing the strain on Shirou's neck, and then crushing her lips to his, returning the kiss with equal vigor.

Shirou began to cry out, a climax now imminent, and he felt Rider break off the kiss, letting her forehead rest against his as she continued to slide up and down his shaft. Gritting his teeth, desperate to hold on for even a precious second or two more, Shirou had a scream torn from his throat, his hips trying to thrust upward as he launched a salvo of his cum deep into Rider, hearing her hiss faintly as she clenched him tightly, her fingernails digging into his shoulders. He went completely rigid, his arms and legs restrained by his bonds, before going limp, one last spurt of his semen trickling out as Rider slumped against him, her own breathing ragged, their sweaty bodies resting against each other.

"Close your eyes Shirou…" Rider whispered after a minute.

"They… are…" he gasped out, trying to get his wind back. Shirou felt her take off the blindfold, and he kept his eyes closed until she said he could open them. Cracking them a little, he winced at the apparent brightness, squinting until his eyes were able to adjust. Rider was smiling down at him as she stroked his cheek, and he smiled back up at her, the fatigue making him work to keep his eyes open. There was a brief rattling of chains, and Shirou found that his limbs were free, and he tried to move his arms, flinching at the pain of the sudden movement. Moving slowly to not make the pain any worse, he managed to wrap his arms around Rider and embrace her, running his right hand up and down her back.

Rider hummed contentedly and rested her head on his chest, her beautiful hair covering the both of them, and rested as he waited for the feeling to come back in his arms and legs. After several minutes of wonderful closeness, Shirou lifted her head and gave her a heartfelt kiss, holding her in his arms as his tongue gently rubbed up against hers. He broke off the kiss and gave her another one, this time with a little more urgency, and he was surprised to realize that his flaccid member was beginning to stir. Figuring that Rider would let him know if she wanted him to stop, he continued kissing her, letting his hands run freely all over her back, finally getting the chance to touch what he'd only been able to see, and finding that she was as soft and smooth as she looked.

"S-Shirou…"

"Yes Rider…?"

She hesitated a moment before speaking. "You… want to do that again…?"

Swallowing to moisten his dry mouth, he answered, "Yes…"

A look that could have been wonderment came over Rider, and she let herself rest against him, taking hold of his head and letting her lips come into contact with his. This kiss was tender as Shirou ran his hands through Rider's silken hair, and taking hold of her shoulders with his left hand, rolled over on his side, stifling a hiss as his numb butt finally had the weight taken off of it. He ended up on top of Rider, her hair sprawled over the sheets, and she reached up and pulled him down against her, gripping him around the waist with her legs.

Shirou could tell that he was fully erect, the head of his prick brushing up against Rider's inner thigh, and he moved his lips to her throat, suckling her graceful neck for a moment before he pushed himself up with his hands. Rider unclasped her legs, moving her right one until it was resting on his shoulder, and after taking hold of the head board to support himself, Shirou pushed his hips forward, letting out a groan as his manhood slid into her warm, slick sheath. He pushed himself into her as far as he could go, stopping when he bottomed out, watching her face as she bit her lower lip, her hands moving to his ass, letting her fingers trace over his skin. He took a second to blink the sweat out of his eyes, and then eased his hips back and thrust forward, turning his head and kissing Rider's legging clad knee.

Tightening his grip on the headboard and getting a fistful of bed sheet in a tight hold, Shirou started to hammer away at Shinji's Servant, her hands pulling his ass down even as she bucked up to meet his thrusts. He could see a blush appearing on her face, and her opened pores continued to allow more of her jasmine scented musk to flow, the air thick with her perfume. Sweat was dripping off of his face, running down his back and chest, perspiring more than he'd ever done before in his life, endorphins making him feel giddy. All the while Rider gripped at him as he drove into her, a wet sloshing sound (along with a faint squeaking of bedsprings) keeping time with his movements.

As Rider began to cry out softly, a dreamy expression on her face, Shirou had a flashback to their first meeting; Rider could easily toss him around like a rag doll, and had done so during their 'fight.' But right now, she was laying submissively beneath him, effectively pinned down with her leg held by his shoulder. He had good leverage, but if Rider had wanted him off of her, she would have no difficulty tossing him off; the fact she was letting, if not encouraging him to take a dominating role excited Shirou, and he increased the pace of his thrusts, wanting to see the look on her face when she climaxed. 'I hope it's soon…' he told himself. 'Can't last… much… longer…'

Faster and faster, harder and harder, Shirou kept up his rhythm, gritting his teeth as he felt himself start to tense up, his breaths coming in harsh pants. He started to cry out, Rider gripping his ass tightly, pulling him down with her formidable strength, allowing him to slam into her so hard that he had a flash of concern that he was hurting her.

"Sh-Shirou…" Rider gasped out. "F-faster! Ohhh… S-so good… It's so good… Unnhh! Ahhh!" Throwing her head to the side, Rider wailed loudly, the noisiest thing that Shirou had ever heard. She clenched at him and began to shudder, the way her mouth was twisted open gave Shirou the last little push he needed, and with a shout he shot off a spurt of his semen into her, some of it splashing against her cervix.

Shirou arched his back and let out another cry as he started to spasm, his body going stiff as a board before he went limp, collapsing bonelessly on top of Rider. He lay there with his face in the sheet, feeling Rider run her fingers through his sweaty hair as he breathed deep to regain his wind. He stayed where he was for about five minutes, listening to her murmur indistinctly into his ear, before he forced his rubbery arms to push himself up, crashing down next to her, and rolling onto his back, taking Rider into an embrace when she rested her head on his chest. Staring up at the industrial lighting, her warm breath tickling his chest, he held her in silence for untold minutes before he gave voice to something that had been bothering him from the beginning. "W-why…?" he murmured quietly.

"As I said, you're very kind hearted," Rider replied softly. "I suppose I've become fond of you… I decided that I wanted to do something about it…"

"But Shinji…"

"He doesn't know…" she explained. "He asked me to observe you closely. Wouldn't this qualify?"

"…I suppose…" Shirou allowed. "What-what now?"

"That's up to you," Rider answered. "If you want, we can go back to the way things were. But, if you would like us to see each other again… That could happen…"

Shirou was quiet for a few moments, his breathing the only sound, before he spoke again. "I think… I'd like to see you again…"

Rider gave him a soft kiss. "I was hoping you'd say that…" She then sat up and reached for her panties, pulling them up her long legs. "You should be going now, you don't want the others to worry."

"You're right…" Shirou blinked as something occurred to him. "My bike! The groceries!"

"Over there," Rider pointed as she started to slip back into her dress. Shirou looked and saw the bags and his bike resting by the door and he let out a sigh of relief. "What is this place?"

"An old warehouse," Rider explained. "The former guard used to use this bed to sleep. He died in an accident some time ago, and no one remembered to retrieve it."

"My clothes!" Shirou squawked. "They're RUINED!"

"I'm sorry about that," she apologized.

"You didn't have to wreck them…"

"If I'd simply asked you to make love to me, would you have said yes?"

"P-probably not," Shirou allowed. "But don't do it again, okay?"

"Does that mean I can't tie you up either?" Rider asked huskily.

"I'd rather you didn't…"

"But it was fun…" Rider pouted.

"Please?"

"We'll see." Rider straightened out her dress and leaned over, giving Shirou a quick kiss. "Until next time…"

"When will that be?"

"It's more fun if you don't know," she whispered. Rider then stood up, and with a short wave, faded into nothingness, leaving Shirou alone.

"Great," Shirou fumed, picking up his tattered clothes. "I'll have to fix these. Hope I remember what Rin tried to teach me…" As he began to concentrate on mending his outfit, he couldn't keep himself from smiling as he recalled all that had happened.

***

"Why did it take you so long to go shopping?" Rin asked later that evening.

"There was a gas leak downtown and I got caught up in it." Shirou had pedaled home as quickly as he could, all but tossed the groceries in the kitchen and bolted to the bath, scrubbing furiously to remove all trace of Rider's scent. He'd done a poor job of fixing his clothes, they'd barely survived the trip home, so he'd thrown them out and changed into new ones. Clean and redressed, Shirou had started cooking, Saber's impatient gaze burning a hole in the back of his skull until he'd served it.

"Were you hurt Shirou?" Saber inquired.

Shirou shook his head. "No, but they wouldn't let anyone by. Didn't really mind though, gave me a chance to think about all this Grail War business."

"Did you have any great revelations, Oh great philosopher?" Rin teased.

"Not really…" he murmured. "I'll just have to be ready for anything."

"Very good," Saber complimented him, accepting another bowl of rice from Rin.

"Thanks…"

They all ate in a comfortable silence for a few minutes before Rin spoke again. "Shirou, I've been thinking…"

"What about?"

"We're kinda being a burden, living here. Why don't you let us get groceries from now on?"

"NO!" Shirou instantly answered. "I-I mean, it's no trouble, I don't mind. I don't mind it at all…"

"You sure about that?"

"It's my home, my responsibility. Besides," he added, "I like working up a sweat…"

"Ahhh… So that's why you had another bath."

"Yes. Exactly that." Shirou took a tip of his tea, clearly feeling his lips curl up in a smile.

***

It was late that evening in the same study when Rider reappeared before her Master, Shinji Matou. "Well?" he asked, not turning around, continuing to gaze at the full moon through the window. "How did it go?"

"Things were a little awkward at first," Rider replied. "But once I found my rhythm, everything went well."

"So the reconnaissance was successful?"

"Yes, I can say that he didn't make any movement that I wasn't aware of…"

"So, did you learn anything about him?"

Rider paused for a second before answering. "Nothing that would be useful to you…"

Shinji pursed his lips and swore softly under his breath, stopping when Rider spoke again. "However, I believe that it would be… beneficial… if I were to continue with the surveillance."

"But why?" Shinji asked. "You just said-"

"It was only one day. It might take some time for me to learn something important."

Shinji considered this for a moment before nodding in agreement. "Makes sense… What would you suggest we do in the meantime?"

"We should stop any other planned actions. Including erecting the barrier at the school…" Rider insisted.

"Is… that wise?" Shinji wondered. "Rin and Shirou have already delayed it…"

"If you allow me to observe Shirou, I can learn if he's planning other moves…"

"You're right, of course…" Shinji relented, before another thought occurred to him. "How much will you be able to learn from watching him?"

"I will observe him as closely as possible," Rider assured Shinji. "No detail will be able to escape my detection. I will be closer to him than his own clothing…"

"That's… an interesting way of putting it… Just look out for Saber," Shinji reminded her. "She'd get angry if she discovered what you were doing…"

"Oh, you have no idea…"

"I'm sorry?"

"Nothing important. I will resume my observations tomorrow."

"Any estimate how long it might go on?" Shinji inquired.

"I shall make sure that the time isn't wasted…"

"Very good then…"

"Yes, it was…" Rider murmured, leaving Shirou alone to brood, her Master not noticing the pleased smile she wore as she disappeared.

End of Observations

This was pre-read by Rx7 and Fatuous One.

Jeez, I'm gonna have to give up a kidney to repay these two someday...