Not Entirely as she planned

When they arrived back at the Emiya household, Shirou unlocked and opened the door. Standing just on the other side of the door was Saber. She had an irritated look on her face. “Shirou, you shouldn’t go running off on your own.”

“It’s fine Saber,” Shirou assured her. “I didn’t have to go far. I just had to tell Sakura she could stay the night.”

Saber looked at him confused. “Stay the night?” she asked. “Are yo…”

“It will be fine, Saber,” Shirou interrupted as he approached Saber. “Besides, it would be safer for her to be here anyway,” he whispered once he was close.

“I suppose,” Saber whispered, still not entirely convinced, but she decided to leave it at that. With that, Saber turned around and headed back to room.

After taking off their shoes, Shirou escorted Sakura to his room.

“We don’t have another bed prepared, so you can sleep in my room,” he began as he approached the door to his room. “I can sleep in the living room,” he said as he opened the door.

Sakura was surprised, until she remembered what she wrote. She wrote that Shirou would let her sleep in his room, but that did not include whether or not he would be there. This is like Shirou though, Sakura thought. He would offer his bed to someone else and sleep elsewhere.

“If you need anything else, just let me know,” Shirou said as he turned to go. Seeing her chance, Sakura rushed behind him and wrapped her arms around his torso, pressing her buxom chest against his back.

“Sempai…,” she began softly. “Would it be alright if we… slept together?”

Shirou turned his head to look back at her, confusion on his face. “Um… Are you sure that’s what you want?” he asked nervously.

“Yes,” Sakura replied quietly.

“Alright,” Shirou said. “Let me go get some extra sheets, just in case.”

“Good idea,” Sakura said pleasantly as she quickly released her hold of him. As Shirou walked away, Sakura picked up the notebook and pencil and headed for the bathroom.

Closing and locking the door, Sakura sat down on the toilet and opened up the notebook. She wanted to make sure Saber wouldn’t interfere, since she is Shirou's Servant, but she knew that Saber was not her true name. The rules of the notebook said that the true name and face are needed for it to work. Maybe sempai knows, she thought. But I would have to get that later. In the meantime…

Sakura put the pencil to the open page and wrote quickly. She knew that grandpa, or rather Zouken Matou was watching her closely. She knew that she was important to his plans and he probably had some way to keep track of her. Sakura had to take care of that before he realized what the notebook could do. And this is the perfect time to punish him, she thought to herself as a sadistic smile formed on her face. And to get nii-san out of the way too.

Shinji Matou will have an uncontrollable urge to have sex with Zouken Matou. Zouken Matou will be in the Matou underground training chamber and will be unable to stop Shinji Matou from fucking him in any way. He will not be able to use magecraft in any way while Shinji is fucking him. As Shinji Matou rapes Zouken Matou, everything Zouken has done or put into Sakura Matou will be safely destroyed, causing no harm or damage to Sakura Matou. After Shinji is done with Zouken, he will wipe his dick off with the Book of the False Attendant, causing it to burst into flames. Zouken Matou and Shinj Matou will not find their sexual encounter unusually and will not bring it up with anyone else. They will also not be concerned about Sakura Matou not being at the house or being free from Zouken’s control.

With that, Sakura checked what she wrote then closed the book. Enjoy it, Shinji, she quietly cackled to herself. Because after I am done with grandpa, you’re next!

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AN: I don't plan on writing the Zouken and Shinji scene, mostly because guy-on-guy is not my thing. HOWEVER, if someone else were to write it, I would read it just to see those two suffer.