BS to the Nth degree.
My friends know that they can tell me the truth no matter what it is.
Maybe, just maybe, there are women out there that show their nude bodies that are NOT prostitutes or drug addicts.
But you wouldn't admit to that if it were staring you in the face, would you?
Of course they can. But will they? Will they bare the darkest regions of their soul for a friend?
Not a chance. People only seriously talk about that sort of thing when they are looking for absolution. Absolution is painful. If they are not ready to seek it, they will deny the need for it. If they have it, they won't run around talking about the subject anymore.
It is possible your friends got in and out of it before they got swept away, but it is highly doubtful they spent much time in it and are exaggerating for effect or are making it up altogether for attention.