First of all, Sex is not a casual gesture to everyone, and if it is, dont expect that sex can keep a relationship [or any for that matter] remaining, Because, as we learn from shakespeare, loving with your eyes is like swearing love to the moon, ever changing.
Any women with self respect isn't going to offer herself up to somone so easilly as a long-talk who offers her ciggarettes. And any guy who thinks he can do that should be thrown into the opra show to be ripped apart by a mob of angry Conservative-newage-kickass-middleage-women.
[Opra women are interesting, They're a combination of conservative behavioural thinkers, combined with liberal concerns.]