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Rating: 4
The MC has a threesome with Ah-Young and Yeorin.
The Hole Is Open – Chapters 88-90
Tag: Breast Licking/Sucking
The scene features a girl licking and/or sucking on another girls breasts.
More of Each Other – Chapter 7
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Rating: 4
A flashback to a few days ago shows Sunae helping the managers daughter with trying out cosplay.
While doing so, she ends up groping her and “teaching her” how to seduce someone by beginning to have lesbian sex with her.
The chapter ends with the MC about to walk in on them, but I’m not sure if it will continue into a threesome next chapter.
Since Sunae has pretty much agreed to marry the MC, I’m giving this the Cheating tag.
Tokyo Black Box The Sadistic Professor’s Case Report – Breaking the Rookie Female Investigator! – Chapter 5
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Rating: 5
Manaka is seduced by Rebecca and has lesbian sex with her.
English Translation Info
This series is officially translated, but not linked here to avoid issues.
Love Navigation – Chapters 19-20
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Rating: 4
Wonhi briefly has sex with Sukjin in front of the MC in order to get him erect, then they both join him for a threesome.
World’s End Harem – Chapter 32
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Rating: 4
While Rea’s girlfriend is getting raped by a random girl, Rea comes to knock out the other girl and kisses her girlfriend.
She’s Working Out – Chapters 90-92
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Rating: 4
Jung-bin kisses Yu-bin before they both go to have a threesome with the MC.
My Sister’s Secret Diary – Chapters 16-18
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Rating: 4
Rain introduces Summer to Cindy and her boyfriend. Cindy briefly gropes Rain’s breasts before going to Summer and attempting to seduce her.
Eventually Rain stops Cindy and Summer’s boyfriend shows up, ending the scene.
My Sister’s Secret Diary – Chapters 4-6
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Rating: 4
Rain has sex with Summer after she realizes that she read her diary. Summer keeps thinking about how since Rain is really good touching her, she must have a lot of experience with other women.
Chishojo Fuuki Iin no Minna ni Ienai Inbi na Onegai – Chapter 5
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Rating: 4
The MC has another threesome with Saki and Shiki.
Creampie – Chapters 19-20
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Rating: 5
After their band breaks up, Rosa hangs out with Cheryl and they proceed to have sex.