Love Triangles / Threesomes

Ch. 3-4 : Classmate -> Younger Twin -> Older Twin

Uke’s mom <-> Asshole -> Uke <-> Seme

Ch. 4 : Seme -> Uke <- Senpai

Ch. 6 : Seme <-> Uke (Teacher) <- Student

Threesome ; Coworker -> Uke <-> Seme

Seme <- sex friends -> Uke -> Crush

Seme <-> Uke <- Sex Friend

Ch. 5: Love triangle, misunderstandings

Uke’s Sister <-> Seme <-> Uke

Seme’s Friend -> Uke (teacher) <- Seme