[Himan Boy] Sister Swapping ~Ore no Imouto to Omae no Nee-chan Koukan Shite Ecchi Suru Hanashi~ [Chinese]

Aoi is a BITCH

Peak fiction

I kinda follow whats going on Dude uses his sister as fap fuel, she catches on and the two start to learn about sexual things One day he goes to his friends house and sees the two of them about to have sex, the friends older pulls him to another room to comfort him learning his friend and sister have been going out, the two then catch him and the friends older sister in the act and see it as a betrayal(for some reason), fat guy thinks his time doing stuff with his sister is over and friends older sister who helped them masterbate as kids and was probably hoping for this uses this to make fat guy hers while her brother gets comforted by fat guy's sister now fully into their relationship I think that's whats going on

I need to learn japanese. I dead ahh don't know wtf just went down. Guessing the bombshell chick is sadistic with her bf while the skinny girl is a sub who groomed the boys and is now pet to fat guy?

This dude is so fat it’s just the author’s self insert