Haha, he wants to sleep with you? Ignoring the obvious joke about sexual orientation, that's truly disgusting. Incest is not good. But are you just making that up? For some reason, your whole OP seems really exaggerated, and I feel like you might have just kinda taken something he said the wrong way.
Unless he has explicitly said that he wants to sleep with you, I find it kinda hard to believe...
but this is obviously the MOST truthful post in this thread