Don't lock the door

Even though you're still high from your first sex, and your attention is mostly focused on the woman lying on top of you, your mind is still capable of some form of coherent thought. The thing is, Shizune is a cautious woman, unlike the more capricious you who mostly lives in the moment. So, even if the two of you were in a rush to do each other, it is unthinkable for her to simply forget to lock the door, especially given the potential risk of someone entering the room.

There's another thing. You recall Jiraiya saying that it's the quiet and uptight person who's more likely to be a freak in the bed. Shizune is a prime example of a quiet and uptight person. Putting the two and two together, you come to a conclusion that Shizune didn't forget to lock the door but instead chose not to in order to heighten the risk, and subsequently the thrill of the two of you being caught in the act.

Not getting up to lock the door even though she mentioned about it makes the possibility higher.

You feel your penis begin to harden once more at that thought. "Let's do it again."

"Sorry?" Shizune said, raising her head off your chest.

"I want to do it again with you."

"But my vagina is a bit sore since it's my fi... I mean since you're doing it roughly just now."

You're not sure how can you be so rough when it was her who controlled the pacing but arguing with Shizune wouldn't get what you wanted. Besides, she has yet so say no. "You can heal the sore area, right?"

Shizune doesn't answer your question but she indeed heal herself at the area. The two of you exchange position, with you ending up on top of her this time. You begin to kiss Shizune but she stops you. "The door."

"The door?" you question her.

"We need to lock the door."

"Why?" you ask as you kiss her neck, eliciting a moan from her.

"Someone may come in," she manage to said between gasp as you kiss her collarbone.

You decide to take the risk, "And watch the two of us having sexual intercourse?"

Shizune's moan is getting louder as she thought about the possibility.

"Think about what people will say about us doing it in the hospital. Why, they're going to say we're trying to practice making babies here." you say, paraphrasing words you read from the books your perverted teacher wrote. Your words seem to have an effect on Shizune as she begin to buckle upward in frustration. "Maybe when we cum, someone open the door and see in shock as we grunted each others name in pleasure."

"Naruto," Shizune said urgently. "Please."

You eagerly move your penis into her entrance before stopping as you wonder whether Shizune is on a contraceptive or would perform such jutsu later. Your hesitancy is mistaken for you teasing her as Shizune growls and pulls you inside her.