there’s a website where you have to post the most messed up stuff and the mc is told to take a video by this girl and the girl starts having sex with another guy (B) and the girl starts beating B up while the mc is taking the video. And the mc got a boner instead of getting traumatised.
Dead tube?
http://www.mangago.zone/read-manga/dead_tub
Fuck off motherfucker mother fucking get the fuck off my motherfucking finally happy babies. Fuckity fuck off bitch!