If the scene starts as fully yuri, but eventually a male comes in and joins them. (The “Male Involved” tag is only used if the male is involved from the beginning of the scene.)
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Rating: 5
Mel seduces and has sex with Gayun. Near the end, Mel’s husband joins in without Gayun finding out.
Mel also has flashbacks of having lesbian sex with her friend while having sex with Gayun, which is why there’s both the “No Male” and “Male Joins” tags.
Afterwards, Gayun doesn’t think she cheated because it was with a woman. But when she gets home, she imagines having sex with Mel again.
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Rating: 3
The start of the chapter shows Erika having sex with Samantha again as payback for having sex with her husband.
Later, Erika’s husband comes home and joins them.
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Rating: 2
Sarah has Akira tied up and has sex with her in front of a lot of people.
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Rating: 2
The MC has Nami and Yumi blindfolded, then makes them use a dildo on each other while he goes out to meet with his friends.
Later, he comes back home and it continues into a threesome.
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Rating: 3
The MC has a threesome with Hyun-Mi and Su-Hyun.
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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.
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Rating: 5
Yejin has lesbian sex with Yoobin while the MC just watches.
Eventually, the MC joins in as well for a threesome.
There’s a joke at the end of the Ch. 40 with Yoobin putting the on the Strap-On, saying it’s her turn, but nothing comes of it.
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Rating: 5
Gahee brings out a strap-on during a threesome with the MC.
When the MC asks about why Gahee has it, she tells him about how when no one comes into the shop, her and Taesu’s mother had started having sex lesbian sex with each other off-screen.
She then goes into detail about how it started, but eventually she ties up the MC and they start to have lesbian sex in front of and on top of him.
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Rating: 4
The MC’s sister is a lesbian and she seduces the MC’s girlfriend while he’s not home.
The MC catches them in the act, so his girlfriend proposes having a threesome where whoever can make her feel better, she’ll stay with.