I've been to bachelor parties and I've SEEN bachelorette parties.
By far, what the men do is severely outweighed by what the women do. With men, it seems like they can only go as far as their conscience or as the stripper will let them go. But whatever men do, it's usually more congruent with their day-to-day behavior than with women.
Most of the women at bachelorette parties are women that tend to seem "virginal" in their everday lives. You know, the women that couldn't possibly do a thing wrong and drop their jaws whenever they find out that one of their girlfriends screwed around on her boyfriend.
But behind closed doors, these women unleash their inner slvts.
There's no other men to criticize them there, there's no "society" to criticize them. They are ALL accomplices. It's like an unspoken code of honor (if such a thing exists for them) in which nothing will ever really be said about what TRULY happened. Those that are always talking about how *******bs are beneath them, are all of a sudden spraying a can of Ready Whip onto some stripper's johnson and cleaning that thing faster than LeBron James can bolt to Miami.
And usually, all of the women will only go as far as what the woman that's done the most during the whole party... will go. And more often than not, it's pretty far.