Umm...

So you want to have sex with me until ◯◯-chan comes home?

Um, such things should be done between lovers or else it would be an affair, you know?

...also, I haven't done it in tens of years, ever since I gave birth to my daughter...

Most importantly, I have a husband so that would count as cheating—

...just once, okay? Just to help my daughter and her boyfriend pass the university exam, that's all ♡