Rin questions Sakura

Rin picked up the pen from the table. Opening the notebook, Rin pressed the pen down to the page and wrote:

Sakura Matou will answer any question Rin Tohsaka asks truthfully.

Putting the pen down, Rin turned her face towards her sister. "Sakura," she began. "Did you ask Emiya to make you into his ****?"

Sakura had seen what Rin had written down but she felt no compulsion to tell her sister the truth. Not that she wanted to lie about this.

"Yes, I did," Sakura confirmed. "Also I don't think what you wrote in the notebook worked, big sister."

"What do you mean?" Rin asked, a little confused.

"Well," Sakura began. "I didn't feel like I had to answer truthfully."

"Okay then, let's test it. What color shirt am I wearing?" Rin asked.

"Blue," Sakura simply answered.

Rin sighed. "So I guess it has to be related to sex for it to work" Looking back at her sister, Rin continued. "Are you sure that's what you want, Sakura? I don't want you back in the same situation you were with the Matous."

"It's not like that," Sakura objected. "Master is very kind to me. He's always worried about how I am and does everything he can to make me happy. I just want to be his se..."

Rin held up her hands to stop Sakura. "I get it," she interrupted. "You really like Emiya and you want to be... that for him." Rin stepped towards Sakura and hugged her. "But if he starts hurting you, let me know. I don't care if he's your master. I won't let anyone else hurt my little sister."

Sakura gently hugged Rin back. "Thank you, big sister."

After a moment, they let go of each other. Rin picked up the notebook and wrote:

Rin Tosaka's breasts will go back to their original size.

Like before, a moment after writing it, her breasts shrank back to their normal size. It's not like I didn't like them bigger, she thought to herself. It would mean buying bras that fit them though.

After that, they called everyone back into the room.

"Alright, Emiya," Rin began. "I will forgive you for doing that to Sakura because she asked for it." She lifted her hand up and pointed at him like she was aiming to cast Gandr, but quickly aimed her finger upward. "But if you hurt Sakura, you will have to deal with me."

Shirou nodded. "I understand, Tohsaka."

"I am curious," Archer said looking towards Shirou. "Why didn't you just use the notebook on Rin? It would have made this easier and you wouldn't have to deal with her being mad at you."

Rin blushed a little. She had wondered the same thing herself.

"Well," Shirou began. "I'd rather not make Tohsaka do something against her will. I want to work together with her as equals. And... I like her the way she is."

This did not help Rin, who blushed a little more and looked away for a moment before speaking.

"An...anyway," Rin began. "Why didn't you use the notebook to generate more mana for Saber?"

"What do you mean," Shirou asked with a confused look.

"Mana transference can be done through the exchange of fluids," Rin explained, trying not to blush. "If that notebook works on sexual areas, then it might be able to generate more mana for Saber when you and Sakura..." Rin trailed off as thoughts of Shirou and Sakura doing it entered her mind before she continued.

"Though, I would suggest you not try anything too impressive for the mana generation," Rin added. "The Mage's Association might notice something if incredible amounts of mana are created out of nothing."

"Shirou," Saber spoke up. "You may want to try what Rin suggests. With your limited mana supply, an increase would have big results."

Shirou nodded, understanding what they were saying. "I got it. I can try writing it now."

He moved towards the table, picked up the pen, opened the notebook and wrote:

When Shirou Emiya and Sakura Matou have sex, Shirou Emiya's mana is increased by double the amount transferred.

As expected, Shirou did not feel any changes after writing it. We'll have to test it out later, he thought.

"As for Caster," Rin continued. "I agree that we cannot let a powerful mage get their hands on this notebook. Not only could they use it to win this Holy Grail War, but who knows what else they could do."

Rin moved to the entrance to the room. "Archer and I are close to locating Caster," she said. "Once we know where they are, we will contact you to coordinate an attack."

"Sounds like a plan," Shirou agreed.

"Good," Rin said. "And Emiya. Remember what I said about Sakura." And with that, Rin and Archer left the room.

"That seemed to go well," Shirou commented as he looked back at Sakura and Saber.

Saber nodded. "I agree. It appears that Rin trusts us with the notebook in our protection."

"And once Caster is found, we can put an end to this problem," Sakura added.

As Rin walked back home, her mind kept going back to the sex note. While she didn't like how Sakura was Shirou's sex ****, she couldn't help but think about herself being one as well.

Why am I thinking like that? Rin thought. She doubted Shirou used the notebook on her to do that, especially after showing it to her and Archer. So then why do I keep thinking about it?

At the Emiya Household

Shirou was studying in his room. After he, Saber and Sakura returned home, Sakura had asked him to wait here. Wait for what, he didn't know. It was probably something involving sex, Shirou thought. As he was reading his textbook, there was a tap on the door "Excuse me, Emiya-san," Zou's voice came through the door. "Mistress Sakura is ready for you in the guest room."

Shirou got up and opened the sliding door. He saw Zou there. She looked exhausted. "Are you okay, Zou," he asked with genuine concern.

"I'm alright," Zou answered, a little weakly. "I... I just need to rest."

"Then why don't you go lay down," Shirou suggested.

"Thank you," Zou replied as she headed towards her room. "I'll do that"

Shirou walked to the guest room and opened the door.

As Shirou opened the door, a new sight greeted him. On the floor, Sakura was completely naked and was bound by rope all over her body. Her arms were tied behind her back. Her feet were planted on the floor with her legs bound the same rope that wrapped around her body. Her back was bent forward at a 90 degree angle. She was being held up by a leather strap along her stomach, which was connected to two supporting stands. The shape was similar to that of a child's swing, but without any of the child friendly padding.

Next to her stood Rider, wearing a different outfit. While she still had the mask over her eyes, the rest of her attire was different. Her normal top was replaced with a corset, with a semi transparent material over her chest. The corset did not cover up her black satin panties. Her hands were in full, black gloves that went up to about two-thirds of the way from her hands to her elbows. Her thigh high, flat boots were replaced with high-heel boots that went up to her knees, with what looked like nylon going half way up to her thighs. In her hands was a leather whip. Rider turned towards the door as Shirou opened it. "Good," she began as she gripped her whip. "You're just in time to discipline your little ****."

AN: Due to schedule changes, I will probably be posting chapters on Monday or Tuesday.