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.
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Chapter Link
Rating: 5
Mayu cheats on her boyfriend with Kokone and possibly becomes a lesbian afterwards.
At the end of the chapter, they’re seen holding hands and flirting/joking about whether this was a one-time affair or the possibility of continuing their relationship.
That being said, Kokone never shows up again in the story, so it’s up to interpretation.
Series Page
Raw Chapter Link
Rating: 5
The chapter starts with Misaka and Chizuru sleeping together, but when Misaka wakes up, she starts groping Chizuru’s breasts until the MC catches them.
After the MC leaves, Misaka keeps groping Chizuru’s breasts, which prompts Chizuru to kiss her. Misaka then offers to help “relieve” Chizuru, so they end up having sex with each other.
Misaka claims that doing this reminds her of her younger years when she had lesbian sex more often.
The chapter ends with them beginning to have sex again off-screen.
Series Page
Rating: 5
Erika and Remi have lesbian sex with each other again.
Series Page
Chapter Link
Rating: 4
Rinko accepts Hinata as her love rival and takes her into the bedroom to sleep with her so the MC won’t be tempted.
The next morning, the MC talks about how he kept hearing moaning and imagines that Rinko and Hinata might have been having sex with each other.
What actually happened is never shown, but given the girls reactions and dialogue from Rinko and Hinata, it was probably just Rinko teasing Hinata.