When a scene starts out as something not intimate, such as playful groping, teasing or even fighting, but then something happens to cause the scene to become more intimate/sexual.
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Rating: 4
The chapter starts with Ryouko masturbating while thinking about Kaede.
Later, Kaede gets a massage from Ryouko again.
Ryouko tries to take it even very further and almost fully has lesbian sex with her, but the MC comes home and they stop.
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Rating: 5
After Ms. Kang hears Yujin’s backstory, they start teasing each other, which turns into them having lesbian sex.
When Ms. Kang wakes up, it briefly shows the sex scene again, implying they had sex all night long.
On the way to school, Ms Kang holds onto Yujin’s arm like they’re a couple.
This has the Cheating tag because Ms. Kang does this behind the MC’s back. He does find out at the end of Ch. 53, but he didn’t seem to mind.
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Anime Version: Movie Scene 1
Rating: 4
While Mutsumi and the Captain are bathing, they begin to have lesbian sex with each other.
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Rating: 5
After sparring, 2 of the FMC’s have lesbian sex with each other.
The chapter ends with the FMC saying that they continued to have sex with each other for the entire night.
The cheating tag is here because they technically go behind the MC’s back.