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Rating: 3
Kasumi introduces her younger sister Shiori to the MC by groping and fingering her.
They then presumably have a threesome together.
Love Educate – Chapter 6
Tag: Hentai Scene
Scene is from a hentai.
Incubus Datte Junai Shitai – Chapters 27-28
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Rating: 3
The MC’s mother ties up Saruwatari to easily allow for the MC to have a threesome with them.
Seiso Bitch na Miko Senpai – Chapter 2
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Rating: 4
Misaki catches Rin spying on her having sex with the MC, so Misaki goes to make out with her and seduce her.
Misaki then fingers and teases her as well before having her join them for a threesome.
Hatsujou Musume no Onedari Shin Seikatsu – Chapter 13
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Rating: 4
A guy records 2 girls having lesbian sex with each other, but eventually they invite him to join for a threesome.
Fellatio Kenkyuubu – Chapter 4
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Rating: 4
The MC has a threesome with Kano-sensei and his own mother.
Kanojo to Ane no Nijuurasen – Chapter 1
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Rating: 3
At the start of the chapter, Kaede punishes Shiori for having sex with the MC, which ends up Shiori tied-up and a dildo sticking out of her.
Later, while the MC is having sex with Kaede, Shiori decides to join in and puts on a strap-on.