The Twins and Me
Read: Ch.7 Pretty short with lots of drama and threesome smut.
A Dead Crow's Stare Webtoon
Read: Ch.extra Pretty good actually: Lots of non-con/dub-con and the smut scenes are always cut short, but both semes are possessive and obsessive, real yanderes. Lots of intentionally annoying side characters, who all die anyway, but there‘s no moral in this story, just a lawless world full of zombies.
Futarijime Underdog
Read: Ch.7 Full of non-con/dub-con: Twins are former players and into their childhood bully uke, hold him captive as a housekeeper to protect him from a threatening person, who wants revenge on uke‘s father, and sexually assault him the whole time. But uke just can‘t say no, since he‘s feeling guilty and is super easy. Still a good read though.
Who Will You Kiss?
Aisaretagari No Gemini
Read: Ch.5 Threesome: Both seme are kinda playboys and work as rental bfs. But it‘s still really cute with the size gap and them not wanting to share uke among them.
Are you the Hero's Boyfriend?