A lot of teenagers feel indestructible, everything is permissible, and “getting away” with stuff is fun.
Caught up in a moment, and when people are in groups, the behavior tends to fall to the stupidest common denominator.
That being said, I don’t think the girl represents anybody typical nor do the guys that were involved.
It’s typical to do stupid things in groups. This, though, is a special level of stupid on all of their parts.
In my mind, it’s closer to lighting bottlerockets out of your mouth than a sex crime.
I suspect she felt in control – the “queen bee” and these were her servants. I dunno. Group stupidity.