I would not critisize the time it takes to get promoted but rather the amount of repeatable boring stuff while dooing so. Of course in real life the normal way to work in a bar means that most people you serve say "Thanks" in a more or less friendly or polite way. But in a game there should be something happening worth mentioning most of the times. Apart from the sexual stuff there could be flirting, maybe asome joking (with a little push to mood and maybe friendship?), lewd remarks or praise of beauty and so on. Groping tits as the "basic sexual" act is a bit rough due to the lack of verbal attacks . By the way, if I am not mistaken there is no ass slapping, the classic way to treat waitresses in bars?