Jesus Christ, what the hell were they over at someone's house got drunk and found a bunch of guns under the bed and decided to play with them?
I hope the guns belonged to one of their boyfriends who was not there. Any gun owner who participates in something like that (AND take photos of it) does us all a big disservice. Frankly an ND would be too quick in most cases, but in a few cases the lingering lead poisoning from an embedded bullet might be suitable punishment for such stupidity.
I don't care how hot they are anyone ever does something like that, I'm getting the hell out of there and if its at my place I'd throw them out.
I doubt any of them know enough about guns to have removed the firing pins. Jesus idiots with guns never stop amazing and annoying me.