Sadistic Yakuza master keeps a sex slave hostage. Uke appears to be quite the masochist though. Rape, bondage, S&M, toys, punishment

The uke refuses to get back with his ex, so his ex stalks him, hits him with a stun gun and rapes him, then holds him hostage

This is similar to the other Izaya Doujinshi, but in this one they just rape him with toys

The uke is bought as a child to be used (no shota). Non-consensual master x slave relationship

The uke is molested and gang raped on a train while his friend watches

The seme hires someone to take his boyfriend's virginity and rape him for hours until he learns to cum from his ass

A third person walks in on the seme and uke having sex (planned by the seme) while the uke is blindfolded and tied up. He gives the uke a bj