Sexy kisses
I was reading a thread about sexy kisses in another movie, and I just have to nominate the one between Rock Hudson and Doris Day in the piano bar in "Lover Come Back". It's not the kiss itself but the lead-up to it that makes it so sexy: One reason Jan (Doris Day) likes Rex (Rock Hudson) so much is because he's been a perfect gentleman, but now she's worried that this is because Rex is gay, so she's subtly been trying to find out:
Rex: I wouldn't want to do anything to spoil our friendship.
Jan (softly, trying to hide her disappointment): Is that all it is with us - friendship?
Rex (in his best Texas accent): Ma'am - that's a DIrect question. I think it deserves a DIrect answer... (and he kisses her).
The way Rock Hudson looks at her as he says that line, the way he says it, Day's reaction and the sexual tension between them just before he kisses her puts this on my list of genuinely sexy scenes from the movies.
Also, the wink and the smile that Rock Hudson gives the pianist when he realizes what her song is about is also amazingly sexy, IMO (and yes, I know he was gay in real life, but he was an ACTOR, and there was a reason why this guy was considered such a heartthrob!)