I know Islam allows one, to have sex with slave women. Yes, a biker gang will commit a gang rape. And some of the women, who hang around them - believe it or not - actually encourage and like it. Go figure.
And here’s a good article, on the MS13 gang at 6 Common Misconceptions About the MS13 Street Gang. Let me quote an element, from the article:
I recommend these books - available on Amazon:
Vagos, Mongols, and Outlaws: My Infiltration of America’s Deadliest Biker Gangs by Charles Falco
Hell’s Angels: A Strange and Terrible Saga by Hunter S. Thompson
Jersey Tough: My Wild Ride from Outlaw Biker to Undercover Cop by by Wayne “Big Chuck” Bradshaw