Chapter Eight

Tucking her sister into bed in their shared Master's home was both one of the strangest and the most normal things Rin had done in a while. There was something comforting about the simple act of care, and the satisfaction of knowing that her sister was safe. For now. At the same time, she couldn't deny what had just happened. Sakura, who she wasn't even supposed to be talking to, had joined her as Shirou's servant. From the way things were looking, for the duration of the war they would be living and fighting together.

And that would be bad enough on it's own, but she still clearly remembered the insane things she had been doing over the last few days. The spanking, the naked apron, all of it. Would Sakura be treated the same?

Did she want her to be?

Rin shook her head, shaking that thought away before it could become fully formed.

Her sister looked peaceful at least. There was no sign of stress or restless dreams in Sakura's expression, she looked more at ease than she had seen her in years. The blankets were pulled tight over her, mainly because she was naked underneath them. The wet and dirty clothing she'd been wearing when her combat outfit disappeared had been discarded and thrown away by Rin. She would project more clothing in the morning.

"How is she?" Shirou asked her. She'd made him wait outside while she got Sakura into bed, but now that he was inside there was no containing him. He was close by, hovering over the bed like a fussy mother. She supposed it was his right to be worried about his Servant's health, but he was only getting in the way acting as he was.

Rin sighed. "There seems to be no permanent damage. I predict that she'll wake up fine later in the morning tomorrow."

Her Master didn't relax like she'd hoped he would. He just nodded once. "If I tell Fuji-nee I'm staying home to look after her, she won't have any problems extending my break."

"You should get some rest, Master." Rin said. He looked haggard. As someone who was essentially a new beginner, he had no business using as much magical energy in one day as he had yesterday. But he'd insisted – insisted – on being the one to carry Sakura home himself.

"I will soon." He said, making no effort to move even an inch. He was still staring at Sakura.

Rin did her best to glare at him until he looked up. "Master." She said, in her well-honed threatening tone. "Unless you want me doing something to you that will earn me another punishment, I suggest you go to bed."

He just stared at her for a minute, eyes strangely empty. For a second she was worried he would bend her over and give her another spanking right there and then, but instead he just frowned. "Right. Okay."

"Thank you, Master." Rin said, helping him to his feet. She wouldn't have been able to get any sleep herself if she'd been worried about both of them.

Together they left the guest room alone, carefully shutting the door behind them while sharing a long lingering look at the unconscious body of Sakura Matou.

What a mess of a day it had been. Rin was still processing it, in some ways. The emotional rollercoaster of discovering what Shinji had been doing to Sakura, narowly saving Shirou's life, fighting her own sister, and then rescuing her at the expense of her brother's life. And to think this morning her greatest worry in life had been a spat with her Master that now seemed incredibly tiny.

"Rin." Shirou said. He was looking at her, although she wasn't sure how long he'd been doing that.

"Yes, Master?" She asked.

"You did good today, Rin. Really good." He said. Rin tried to hide her blush to no avail, because as soon as he finished talking he had pressed a hand against her shoulder and pushed her back against the hallway wall. She wished it wasn't true, but his praise made her feel like there were butterflies in her stomach. "And like I said, I need to start taking my responsibility as your Master more seriously. It's not my job just to punish you, but to reward you as well."

"I – I don't need –" Her refusal died half-formed on her lips. Shirou was pressing his weight against her now, and his warm body was doing things to her that she would die before she admitted.

"Rin. Lift up your skirt."

It annoyed her to no end that her first instinct was to obey. She didn't go all the way through with it before she stopped herself, but before she knew it her hands were grasping her skirt and trying to expose herself. Thankfully sanity came back at the last possible second. "You... what the hell are you trying to do?" Rin asked, glaring at him.

Shirou didn't seem upset at all by her defiance. Just confused. "Hmm? I said I was going to give you a reward, didn't I?"

A blush ran up Rin's body. It was so hard to deal with her Master. One moment he would be determined and polite, almost too responsible and caring, and the next he could be doing something like demanding that she put on a naked apron, and he seemed to not only not understand but not be capable of understanding that it wasn't appropriate or normal to do so.

Rin looked away from him, aware that he heart was beating faster the more she looked at him.

The worst part was, she couldn't truthfully say that she didn't enjoy it...

At that moment, Rin made a decision. She was tired. She'd just had to fight her sister, narrowly managing to save her life after removing her from a drastic situation. She was tired, and stressed, and her body was sore all over. She really could use a reward.

So, telling herself she was only doing this because she had to, Rin lifted her skirt the rest of the way up. She was still refusing to look at him, but she swore to herself that if anything but a look of sheer awe and admiration had crossed his face upon seeing her simple red panties, she would kill him.

Shirou, no – Master, said nothing else. He pressed harder against her, forcing her back completely against the wall as his hand sunk downwards into her nether regions. As he did so, his back craned down so that he could press a kiss against her neck. Rin shivered, feeling like her body was experiencing an electric shock all over.

But even that was nothing compared to what she felt when his hand casually slipped under her panties. She was wet, not nearly as wet as she had been after getting spanked, but wet enough that he had no trouble working a finger inside of her.

Rin moaned, finding the rather foreign sense of being invaded in this way to be immensely pleasurable. Master's finger rubbed at her inner walls, softly like he was afraid he would hurt her.

She was glad he didn't know that she'd sort of hoped this would hurt just a little more.

Shirou's grip on her neck shifted, and she moaned a soft complaint until he lifted up her chin and stole her first ever kiss. Rin sputtered, shocked that he would cross that line so easily, but not wanting to complain. His lips were soft, despite how hard his body was, and his lips moved with passion mixed with that damn straightforward nature of his. Kissing him, and she was kissing back to her own surprise, was like the shock of a fast drop during a rollercoaster. It was fierce and fun even though she knew that she had no power to stop anything now.

Another finger worked it's way inside of her. Rin buckled her hips, trying to urge her Master to go faster. The warmth between her legs had been growing by the second, and she was ready for more than just two fingers doing little more than teasing her.

Master broke off the kiss, leaving her even more frustrated. "Rin. You've been such a good girl. I'm so proud of you."

And then, all at once, he intensified everything he was doing to her to new heights. His fingers moved faster than ever before, and he began paying proper attention to her clitoris. It was nothing more than mere stimulation, her Magus training had made her deal with far more intense emotions than this before, but still...

Rin felt like she was in heaven.

"Good girl, Rin. You're such a good girl." Master said.

Her flush grew even deeper as a rush of pride ran through her. He sounded so proud of her. She couldn't remember the last time someone had made her feel like that.

"S-say that more, Master." Rin said.

"Good girl, Rin. You're Master's good girl, aren't you?"

She nodded her head rapidly, silently begging him to keep going. His fingers inside of her were like a piston, and the stimulation of her clit was driving her wild with pleasure. But it was his words that were making her go so wild. Something was building up inside of her.

"You're doing so well, Rin. Master's proud of you."

As soon as he said it, an orgasm tore through her, shocking her with it's intensity. If not for her Master's firm hands holding her up, she was certain that she would have sunk to her knees or worse as the waves of pleasure rolled through her and she moaned for all the world to hear. Master was as gentle with her as he could be, smoothing her prickly edges and whispering sweet nothings into her ears.

And as soon as she physically could, Rin shoved him away and stormed off to her room. Leaving his very confused expression behind her. Pride, and shame, and sheer satisfaction were warring within her. She didn't know which emotional reaction would win, and frankly she didn't care. Rin planned to go to the toilet, and then go to bed.

She was asleep as soon as her head touched her pillow.

X X X

Sakura had been asleep for only a night, but she woke up the next morning feeling like she had just escaped from a week long nightmare.

It had been a strange and terrifying dream. She called it strange because she usually dreamed about the worms, when she dreamed at all. But this dream had been all about her beloved Senpai, someone she normally tried to keep as separate from her home life as possible. He'd been in such terrible, terrible danger. She couldn't nail down what the threat had been, dreams were always a little vague like that, but she'd been so certain that he'd been about to die. Her anger and rage had felt so real.

Sakura blinked her eyes a few times, feeling disoriented. It wasn't until just then that she noticed for the first time that she was not in her own bed. This looked like... the Emiya estate? Yes, she was sure she had dusted this room once or twice in the past. But why would she be here?

Her head still a mess, Sakura rubbed at her eyes and tried to piece together how she had gotten here. The last thing she remembered, before the dream, was talking to her Grandfather. He'd mentioned something about another conditioning lesson and then... then the dream. And now she was here.

With a start, Sakura bolted upright, throwing away her blanket and trying her best to figure out what was going on. With a growing sense of panic, she examined her own condition. She was naked, which was never a good sign. Her body felt... fine. No, better than fine. She couldn't even feel the worms wriggling around inside of her.

What possible combination of events could have led from her beginning a 'lesson' with her Grandfather, to waking up without any clothing in this all too familiar home? Every answer she could think of only made her more horrified.

Before she could start to scream and shout, she heard footsteps rapidly approaching. Without pausing to knock, the figure slid the door to her temporary room open and Sakura was greeted by the relieved face of her precious Senpai.

Any outside observer would have been shocked by how quickly her heartbeat calmed as soon as she saw him. Maybe it was because of the nightmares, but she felt like it had been an eternity since she had last laid eyes on him, although they had spoken only yesterday. Her heart always felt at peace while she was here, but today his effect on her was even more significant than normal.

"Sakura!" He yelled. He seemed so worried about her, something really serious must have happened. And then he took another look, and she saw him freeze. He turned red and turned his head away. "Sakura!?" He shouted wordlessly.

Only then did Sakura remember that she wasn't wearing any clothing. She'd unintentionally just given him an eyeful of everything. "Senpai!" She shouted, clawing frantically at her covers until she had pulled them up over her chest.

Even as embarrassed and ashamed as she was, she couldn't help looking at him. His kind, flustered eyes. Did he like what he had seen? She didn't want him to sully himself with her, knowing what she was, but she also hated even more the idea that she might disgust him.

"Sorry, Sakura!" Shirou called out. He turned around. "Rin, get her some clothes!"

Despite everything going on, that name made her freeze. He couldn't have meant...?

A few minutes later, a stoic faced Rin Tohsaka entered the room in Shirou's place, carrying a few articles of clothing. Feeling her own back get stiff, she took the clothing in silence. Why was she here? Trying to read her sister's face was impossible, so Sakura just dressed herself. She didn't know whose clothing it was, it was obviously too big to fit Rin, but it was a good enough fit. A little tight at the chest, but bearable.

Sakura sat back down on the bed when she was done, worried again. Finally she worked up the courage to ask the question that haunted her. "Tohsaka-Senpai, what are you doing here?"

Rin sighed, rubbing her forehead. It was a gesture so unlike the perfect school idol that Sakura only ever saw from a distance. "This is going to take a while to explain. Master, get in here!"

Master? Sakura's eyes widened when Shirou entered in response to that summoning. Just exactly what kind of relationship did her sister and her Senpai have? Shirou still looked a little flustered, but he was mostly happy again. Happy, and relieved. "Sakura, I was so worried!" He called out, rushing to her side.

"Senpai? What's going on? Why is Tohsaka-Senpai here?" Sakura asked, looking between the two of them for answers. They both seemed equally unsure of how to answer.

"Sakura, how much of the forest do you remember?" Shirou finally asked.

"What forest?"

Her response made the two of them furrow their brows. Shirou leaned forward. "Sakura, what's been going on since you were pulled out of school?"

Sakura frowned. "I was pulled out of school?"

"What the hell!" Rin shouted, making Sakura flinch backwards at the unexpected hostility. "Are you seriously telling me you can't remember becoming a Servant at all!?"

"I'm a... Servant?" Sakura asked.

She felt like her throat was constricting. Her body tensed, waiting for pain from the worms inside of her that never came. Why did she feel so good, even though she should have been weak?

Her eyes flickered over to her Senpai. Was he going to be in danger if he heard that term? No, wait. Rin had called him Master.

"Hold on." Sakura said. "Before that... what are you doing here? What exactly is your relationship to Senpai?"

Rin sighed again. "Okay, there's a few things I need to explain."

X X X

Sakura took a long sip of her tea, watching her Senpai out of the corner of her eye as he worked away at making lunch.

No, not her Senpai anymore. Her Master. That still... sounded too good to be true, to be honest. Sakura did not get dealt hands like that in life. She would savour it while she could, but she knew deep down that something would shatter this delicate illusion very soon.

Across the table from her was her sister. Rin Tohsaka. Miss Perfect. Right now, she and Sakura were servants of the same Master. Sakura didn't know if that was better than their previous distance or not. All she had wanted for a long time was to be reunited with her sister, but she'd never prayed for something like this.

Her eyes turned back towards Shirou. Master. She'd already messed up calling him that a few times, although he'd said it was fine while she recovered. Once she was better though, he'd warned that he would be more strict with her. Sakura didn't think she deserved that kind of kindness. Both his leniency and his strictness were too goodfor her.

But at the same time...

Rin had been his Servant for a while now. Her sister, who always got everything while Sakura always had nothing. What sorts of things had they done together? Wasn't it natural that Shirou would desire her enough to order her to do that kind of thing?

Sakura found herself clenching her fist. This may have been a short and temporary happiness, but she couldn't allow herself to lose. Not like this.

For now, she just needed to get Master alone.

Sakura knows a lot less about what was going on then you might have been expected. Keep in mind, this is an AU so her place within her Granfather's plans is not the same here as it was in canon.