Alle Menschen werden Brüder (1973)

This one’s got a few white guys, all in their 20s-40s, getting down in an office and a bedroom. One guy’s got glasses and a mustache, another’s a bit older with gray hair. They have some conversations, then things get heated. One dude ends up lying down while another jerks off. The camera’s mostly in medium shots, sometimes a bit close-up. The office setting’s pretty standard, but the bedroom’s where things get more interesting. Not much in the way of specific details, but it’s clear they’re all about the brotherly love.