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Rating: 2
Both of the MCs have a foursome with Jo-Hee and Ah-Young.
Couple Game: 17 Sex Fantasies Ver.2 – Chapter 22
Author: cookiesarethecure
My Other Girlfriend – Chapter 7
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Rating: 1
There’s a short imagination scene of two of the FMCs having a foursome.
Soeun – Chapters 19-21
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Rating: 3
Soeun has a threesome with Joo Lia and another guy.
The MC eventually joins as well, turning the scene into a foursome.
With My Brother’s Friends – Chapter 22
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Rating: 2
The group has a foursome together.
Sexual Exploits – Chapter 28
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Rating: 3
2 guys have a foursome with 2 other girls.
Sexual Exploits – Chapter 4
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Rating: 2
The 2 MCs briefly imagine having a foursome with their girlfriends.
Harem Wedding – The Sweet Honeymoon – Chapter 4
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Rating: 5
The group go on a trip to visit Clammish’s cousin, Offira, where during dinner time, Offira asks the MC if she can borrrow Clammish for the night to “chat.”
Once alone, Offira gets right to seducing and having lesbian sex with Clammish.
Eventually the MC and another man join them for a foursome.
Pages 88-94: No Male
Pages 94-105: Male Joins
Tail Chaser – Chapter 11
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Rating: 5
Mars and Enma have lesbian sex with each other while the MC and his friend watch.
Eventually they also join in for a foursome.
Swapping Story – Chapter 3
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Rating: 5
While Saori and Yuki are talking about the swapping, Saori mentions how much she enjoyed kissing Yuki in Ch. 1 and how good she looks in a yukata.
Saori then drags Yuki into a room to make out with her, but they’re quickly caught by their husbands.
The rest of the scene turns into a foursome.
Soshite Kyou mo Moteasobareru – Chapter 2
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Rating: 3
While Nagi is having sex with the 2 NTR guys, a drunk Kohana shows up and joins in.
Kohana briefly gropes her before the 2 guys join back in for a foursome.