On an aside, I don't really understand trib threads conceptually. I've seen a couple of them, and like, from what I understand, it's just people jerking it to dudes/chicks jerking it to dudes/chicks of either gender?
I don't really understand the appeal, personally. Like, why not just cut the middle man and jerk off to people masturbating, or just to whatever they're doing it to? I dunno...

https://youtu.be/_sCVQCZuaw0