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Rating: 3
The female antagonist is briefly shown having lesbian sex with a group of girls.
Hate Modoru Isekai Tensei – Nankai Yatte mo Osananajimi ni Tadoritsukenai – Chapter 7
Tag: Fingering
Scene features a girl fingering another girl.
Isekai Harem de Ichalove Shichachu – Chapter 6
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Rating: 5
The FMC, Sophia, has a lesbian orgy with all of the girls in her harem.
Nande Koko ni Sensei ga!? – Chapter 98.5
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Rating: 4
Sakura gets drunk and physically teaches her idol friends how her husband had sex with her.
We see a lot of stuff happen, and it’s implied more happened with the “round 2” line, but it cuts to them coming home after that.
Okusama wa Joshi Kousei – Chapters 122-123
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Rating: 4
Kurumi likes to have sex with all of her tenants, so she has sex with Asami. Some of the other tenants join in at the end, but it cuts off.