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Rating: 4
2 of the FMCs briefly have lesbian sex in front of the MC.
But then the MC joins, turning it into a threesome.
Jokeunomi – Chapters 15-16
Tag: Full Nude
Scene features at least 1 girl fully nude.
Learning the Hard Way – Chapter 85
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Rating: 4
The MC has a threesome with Yejin and Mrs. Lim.
The end of the chapter leaves it up to interpretation of whether or not this was a dream of if it actually happened.
Herbal Love Story – Chapter 51
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Rating: 5
Tracy seduces and has lesbian sex with Seung-Ah, telling her that while they swapped bodies, she masturbated to find out all of her weak/pleasure points.
Near the end of the chapter, Sejeong (who has swapped bodies with the MC) joins them.
Since it’s still the MC’s body, I’ll tag this as Male Joins.
This continues into the next chapter, but I counted it as a new scene since Seung-Ah went to go join the MC in Sejeong’s body.
Tachibana-san-chi no Dansei Jijou – Chapter 4
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Chapter Link (Pages 175-210)
Rating: 4
Koharu gets seduced and has sex with a male and female masseuse while the MC is passed out next to them.
The 2 workers do not have their names given, but the female one is very intimate with Koharu throughout the “massage.”
At one point, the female masseuse strips and rubs her body against Koharu’s while kissing her neck, causing Koharu to get very turned on and seemingly questioning her own sexuality.
There is colored versions and a few extra pages of art from this scene in this gallery.
Baku – Chapter 1
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Rating: 5
Keiko is drugged and then seduced/raped by her married friend, Yukari.
They have lesbian sex for a while, but eventually, Yukari stops and takes Keiko to the MC for a threesome.
Chou Onee-san Tengoku – Vol. 1 Ch. 6
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Rating: 4
Mizuho-sensei forces Kanare to join her and the MC for a threesome after she’s caught spying on them.
Ane Colle! – Chapter 2
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Rating: 5
This is part of an anthology series, so in this chapter, the MC comes home to find his wife having an affair with another woman.
They tell him that they’ve been seeing each other for a while and start having sex in front of him.
The MC then gets mad, so he joins them for a threesome.
Kaede & Suzu – Chapter 4
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Rating: 3
The MC has another threesome with Kaede and Suzu.
Inkyo Joshi to Kaikan Propose – Chapter 5
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Rating: 5
Chinatsu’s teacher is revealed to be transferring away to Paris, so she asks Chinatsu if she can have sex with her before she leaves.
This prompts Chinatsu to ask Kei if it would be considered cheating if she did other things with another girl even though they’re dating, to which he says it would be.
Later, the teacher comes over to try and convince Kei to let her have sex with Chinatsu under the guise that it’d be a “test of their love.”
She then she tries to make Kei imagine Chinatsu making out and being “lovey-dovey” with another girl.
Chinatsu politely turns her down, but after hearing everything, Kei thinks it would be hot and agrees to let them have sex.
So Chinatsu and the teacher have lesbian sex with each other while Kei watches, but eventually he joins in as well for a threesome.
At the end of the chapter, after a time skip, the teacher sends them a letter, showing that she’s gotten together with a girl that looks very similar to Chinatsu.
Sexy Man and Woman – Chapters 35-38
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Rating: 4
The MC has a threesome with Yena and her mother.