The scene is caused by a third party, but there is not consent from the girls involved. (Ex: A guy forces a girl to have sex with another girl.)
Series Page
Chapter Link
Rating: 5
While the group is playing the King Game, Ryan’s stepmom is forced to lick Irene’s nipples 5 times.
Later, Irene accidentally commands the stepmom to have sex with her for 5 minutes.
Series Page
Chapter Link
Rating: 5
During a swap, Nicole and the MC’s sister, Natalie, have sex with each other.
Series Page
Chapter Link
Rating: 4
At a swap meet, Emily and Lily are forced to have sex with each other.
Eventually they join in with Nova and the other guy there, and it becomes a foursome.
Series Page
Chapter Link
Rating: 3
The cover image is of Miku groping Satsuki in a swimsuit.
During a shoot, Miku teases Satsuki with a pen as a sex toy. Satsuki gets upset about it and the scene ends.
Series Page
Chapter Link
Rating: 4
Ken tells Liz and Sylvie to have lesbian sex with each other before he joins them for a threesome.
Series Page
Chapter Link
Rating: 4
Sana and Shiramine have lesbian sex with each other as part of a competition.
Sana is briefly shown to have had lesbian sex with girls in the past.
Series Page
Chapter Link
Anime Version: Episode 7
Rating: 5
Hitomi and Eruza get put under a aphrodisiac and they start making out and grinding against each other.
Series Page
Chapter Link
Voiced Chapter (Live Reading)
Rating: 2
In an extra chapter, Chizuru and Sumi kiss each other in front of the other characters to escape a room.
The live reading I linked is of the voice cast from the anime reading the chapter at an event.
Series Page
Chapter Link
Rating: 2
The MC has Camilla briefly join in on raping Rachel.
Series Page
Chapter Link
Rating: 4
Chapter Title: Memories and Minotaurs
Daryl kills Alex, and while she’s in what she thinks is a dream/the afterlife, she sees Alex again and has sex with her.
The scene ends when Daryl brings her back to life as a zombie.
This whole scene is later to be revealed as a fake world created by Daryl to trick Dana, so I’ll give this the “Forced” and “Imagination” tags.