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Chapter Link
Rating: 3
The MC has a threesome with Alice and Machelle.
Regressed Warrior’s Female Dominance Diary – Chapters 28-30
Tag: Cheating
Scene features at least 1 girl cheating on her significant other with another girl. (The significant other can be their BF, GF, Husband, etc, as long as she’s being unfaithful to them.)
Soshite Kyou mo Moteasobareru – Chapter 2
Series Page
Raw Chapter Link (Pg. 40-61)
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.
Haite Kudasai, Takamine-San – Chapter 58
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Raw Chapter Link
Rating: 4
While Takane and Eri’s girlfriend, Rurika are in the sauna together, Rurika can’t help but stare at Takane’s breasts and begins to understand why Eri finds her attractive.
They then talk about skin/breast care and when Rurika asks for advice, Takane starts groping her breasts while telling her what she does.
This ends up arousing Rurika, but the scene then cuts to them meeting up with the MC and Eri.
Sefure – Chapters 57-58
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Raw Chapter Link
Rating: 5
Continued from the previous scene, Julia and Leo engage in lotion play while the MC watches.
Pretty quickly though, Julia gets more and more aggressive, turning the scene into full on lesbian sex.
Julia even starts to tease the MC about getting cucked by another woman, but he’s completely fine with it because it’s hot.
While showing reluctance to Julia’s previous advances, Leo gets very turned on here and begins to enjoy the girl-on-girl action.
The MC never joins in at any point, he only watches.
Personally speaking, this is probably my favorite scene I’ve added onto the manga list so far.
Even though the MC is fine with it in the end, I have the Cheating tag here because of the NTR dialogue Julia has.
Streamer Aunt – Chapter 13
Series Page
Chapter Link
Rating: 3
Da-Jung gives Su-Jin’s an erotic oil massage in front of the MC while they’re live streaming.
After she finishes, she asks Su-Jin to do the same for her, but she backs out and the MC does it instead.
Euphoria Juice – Chapter 7
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Chapter Link
Rating: 5
Mayu cheats on her boyfriend with Kokone and possibly becomes a lesbian afterwards.
At the end of the chapter, they’re seen holding hands and flirting/joking about whether this was a one-time affair or the possibility of continuing their relationship.
That being said, Kokone never shows up again in the story, so it’s up to interpretation.
Tachibana-san-chi no Dansei Jijou – Chapter 4
Series Page
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.
Otona Change – Chapter 15
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Raw Chapter Link
Rating: 3
2 of the FMC’s have lesbian sex with each other in front of the MC before he joins them for a threesome.
Ukkari Haicchatta! Itoko to Micchaku Game Chuu – Chapters 19-20
Series Page
Raw Chapter Links: Ch. 19 – Ch. 20
Rating: 2
Ayumi and Kaho end up rubbing against each other while taking a bath together.
Eventually the MC joins them as well.
Eros Survival – Chapter 94
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Raw Chapter Link
Rating: 4
Nina has to resist Linda’s caressing for 15 minutes without letting out a moan or sound.