your best kept secret [CHEATING yaoi]

explicit cheating. NOTE: mok-yeon (seme) and nanjo (uke) are the couple. sunhwa (other uke) is an extra lmao

nanjo believes he and sunhwa are in a real relationship. everyone's cheating

mok-yeon cheats on nanjo w sunhwa (to stop sunhwa from sleeping w nanjo). nanjo cheats on sunhwa w mok-yeon. sunhwa cheats on nanjo with a bunch of random guys, and also w mok-yeon.

10/10 I LOVE THIS SHIT!!

explicit cheating. uke cheats on seme with his longterm unrequited crush (then they have a depressing threesome... this story is sad and distressing, highly recommend)

explicit cheating (with each other). uke and seme break up. in order to stay close to uke, seme starts dating uke's sister. seme cheats on uke's sister with uke

explicit cheating (uke cheats on wife with seme, his wife's father)

explicit cheating/one person thinks it's cheating. (uke cheats with seme's brother. they're not in a 'confirmed' relationship, really. also, cheating due to blackmail)

sorta cheating. both semes (especially black-haired seme) kinda think they're being cheated on, but no one is actually in an exclusive relationship at the present time

explicit cheating. uke cheats on his wife with seme (and seme's friends)

explicit cheating. uke (megumi) cheats on his boyfriend (yuji) with his boyfriend's doppelgänger/possessor (sukuna)

explicit cheating. uke gets caught fucking seme's girlfriend

explicit cheating. uke cheats on his girlfriend with seme (they're childhood friends turned friends w benefits, before and throughout uke's relationship)