and te one where
the guy turns into the girl and her boobs grow and they pan the shot to that quite well..
i just find them to be male orientated and rude to me (probably cause im a girl XD)
I dunno, I was watching it with a few girls and most of of them thought it was funny. It's supposed to be silly, not so much trying to have sex appeal for the men.
Usually I don't think gender has a big bearing on whether you think sexual jokes are funny or not, rather its your personality. The general thought is that men tend to find these kind of jokes funnier, but I've met a lot of guys who don't laugh at these jokes, whether its because they really don't find it funny or they're trying to pass themselves off as being more mature.
Honestly, I didn't laugh much at these myself, but that's mainly because there's not a lot of jokes I laugh at in general.