"I lost my teddy bear, will you sleep with me?"
"Where I come from casual sex is regaurded as less passionate then a kiss, I don't know you well enough to kiss, so how about a quickie?"
"some people are here to find love, myself? I'm after sex with someone as good looking as you" ~ made up by me
"There's something about you that gives me a boner, so I think it's your responsibility to help me get rid of it." ~ also by me (be warned, if the person you are talking to is holding a sharp object and gets a weird glint in their eyes.)
"The way I see it is, we could either go back to our respective places and hire hookers costing at least $100, or you could come back to mine, which saves at least $200"
From that british show coupling a man tells a woman that doesn't speak english that he likes her ears... he ends up walking back to his mates and tells them "She thinks I collect people's ears in a bucket"