I got an erection when I saw my childhood friend who helped me being fucked by a bully

Natsu is a childhood friend who has always helped me when I'm bullied. He came to help me again today! However, this time the opponent is incorrect, and he is defeated and is lewd. Now it's my turn to put all my courage into helping! Huh... I'm getting an erection. Even though my benefactor is having sex. ...I want to see more, cry more. Ah... what a great thing. I can't help but see Natsu, my beloved, like this... I just realized... I love how you're being raped lol Benefactor NTR! A scumbag erection!