lol, there's something very disturbing about how he speaks so openly and casually about it. And as you're watching it, you know he's done it... could anyone else help picturing this guy with his finger up his butt?
Well, how strict are your parents? Cos you can easily just talk to them directly, and say that you weren't even thinking of sex, and that you'd be sleeping in different rooms (lawl.)
Two of my friends (who are girls) asked me this once... it was quite an awkward conversation.
But it's such an interesting question. It's like it's hardwired into our heads - it's crazy. It's obviously closely linked with biology, but I think the people who say it's cos we 'sucked our mum's...