It was definitely a normal thing at my high school.. A lot, if not most, of the boys in my friend group did it at some point back then.. We'd look at porn and jerk off together at sleepovers, c...

It's pretty common for some kids, even at that age, to touch themselves "down there" like that - I don't think it's "masturbation" exactly, at least not the way someone older would think about it.....