My sister-in-law is such a slut, she's been after me for ages to sleep with me...!!

Having a sister-in-law like that, you've been hesitant to sleep with her for a while? Are we guys idiots? How can you say no to having sex with a woman like that, for crying out loud? Come on, before she even said it, I would have already said yes to everything, damn it, haha. My god, the morality some people have. And we suppose it's because she's his brother's wife and he wanted to respect that, and what he doesn't realize is that if it's not him, it'll be someone else...