Camellia
Um dad abused mom and older bro. Mom dies, probably due to the dad. Older bro is like yo lets runaway cos he had been prepping for it. Time passes bro starts hitting and banging the younger bro. Circle of abuse. Also is it really hereditary or more like due to the upbring. Im more of a nurture than the nature.
Amai Sokubaku
So, bro, who is half brother or maybe even a stepbrother, not too sure, like his older brother maybe. Idk the younger one catches the half bro wuth the older one and gets pissed off and rapes the half bro because he has always been infatuated with the half bro, welp 5 years pass and the younger bro is a prominent actor. The whole family meets up and the yound bro actually shows up, he gets jelly and whisks away the half bro and has his way again.
Sanshoku Mazareba Kuro ni Naru
Tags say it all
Ganjigarame
Cool cos twincest, not cool cos the hardcore censorship when i should be having hardcore dicks
5 Seconds