I know what you mean about The Dreamers -- I despise gratuitous sex scenes, even gratuitous nudity (especially when it's one shot of a guy's ass in a two-hour long movie, i.e. Arsène Lupin, where, by the way, Eva Green looks absolutely gorgeous and I totally fell in love with her) bothers me, but in The Dreamers it's just so... natural. It's the perfect amount and the film itself is charming in the under-a-spell way. I absolutely loved it when I watched it last year, I really did.