URGENT ADVICE NOW!!

hi my friend told me that he was like doing his business off to the yaoi he was reading & he just had an urge to reach & suck his own buddy.. he heard footsteps coming down the hall, and in a panic he accidentally bit his thing & flings his phone under his bed. But don’t worry it’s still attached. But his mom came in and she saw him.

What do I tell my friend? It hurts really bad & THERES a mark but I don’t want to go to the hospital & they ask me about it.. but my mom looked petrified ╥﹏╥