The scene features at least 1 girl cheating on her significant other with another girl.
The significant other can be their boyfriend, girlfriend, husband, Etc., as long as she’s being unfaithful to them.
This tag can be used in combination with any other relevant tags like Married or Rape.
Series Page
Chapter Link
Rating: 4
While the MC is having sex with Mars, Enma gets turned on and proceeds to seduce and have lesbian sex with Fubuki.
The actual scene is only this page, but is later implied to have continued off-screen.
Series Page
Chapter Link
Rating: 3
After Bomi catches her husband having sex with Sung-Ryeon, Seohye shows up and seduces her into joining them as well.
Series Page
Chapter Link
Rating: 3
It’s revealed that every time the MC fell asleep, Shana had been having sex with Ye Lian to improve their abilities together.