I'll give you my conclusion. These are American college girls we're talking about, who will buy into the "college girl/spring break/initiation girls gone wild" theme after enough drinks and it will seem hillarious to them until their families or "not-so-hip" friends, co-workers, etc. start pointing to the pictures on the internet. Then come the cover stories. I was a little surpised the picture links lasted here. There's no "frontal nudity," but also little doubt what is being "acted out."
Wonder what they are telling their families, friends, and co-workers.