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Rating: 2
The MC imagines walking in on Ibuki having sex with the principal, which then turns into him have a threesome with the principal and another girl.
Sense – Chapter 18
Tag: Full Nude
Scene features at least 1 girl fully nude.
Keep It a Secret From Your Mother! – Chapters 99-100
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Rating: 4
Na-Yeon briefly eats out Yeon-Ah while the MC has sex with Soo-Yeon.
Later, they briefly have lesbian sex with each other.
Chishojo Fuuki Iin no Minna ni Ienai Inbi na Onegai – Chapter 7
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Rating: 4
The MC has a foursome with Saki, Shiki and their mother.
At one point, Saki puts on a strap-on and has sex with her mother while Shiki and the MC watch.
Eventually they join in and the MC remains involved for the rest of the chapter.
Housewife Erika – Vol. 1 Chapter 8
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Rating: 4
Start of chapter is Remi having sex with a girl names Misae and another guy who she meet through a Sex Network website.
They want to meet Erika, so later while Erika and Remi are having lesbian sex, Remi brings in Misae and the other guy for a foursome.
My Stepmother’s Friends – Chapters 111-118
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Rating: 5
The MC has a foursome with Na-Yeon, Gyeong-Eun, and Yu-Mi.
While the MC is having sex with Yu-Mi, he tells Na-Yeon and Gyeong-Eun to have lesbian sex with each other.
Eventually they join the MC, and Na-Yeon starts having lesbian sex with Yu-Mi when the MC switches to Gyeong-Eun.
There’s a few instances of the MC imagining them having lesbian sex, but they’re very brief, that’s why the tag is here.