Scene features 2 or more girls hugging.
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Rating: 4
The girls seduce Mutsumi into joining them and briefly have a yuri foursome with her.
Just before any of the men in the room can join as well, the sprinklers turn on, causing the aphrodisiac effect on all of them to ware off.
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Rating: 3
At the start of the chapter, we see Rina clinging to Ishiki and Shiori clinging to Kaede.
Later, at the end of the chapter, all of the girls jump Kaede and have sex with her.
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Rating: 5
Ai finds Syurina masturbating to the MC’s clothes after he rejected her. Ai wants to help and cheer her up, so she starts seducing and fingering her.
Ai then takes her to Momo and Tohka, asking them to help teach Syurina “The pleasures of being a woman.”
We see it in Ch. 8, but it’s implied after this chapter that they have lesbian group sex in the locker room every day.