The scene features 3 girls having sex with each other without any male involvement.
Series Page
Chapter Link
Rating: 2
Madam Mera has 2 of her girls begin to grope and most likely have lesbian sex with Akame.
The scene then cuts to Akame dazed and slightly more undressed, implying something erotic happened off-screen.
Series Page
Raw Chapter Link
Rating: 4
Kaname is briefly shown having a lesbian threesome.
Series Page
Chapter Link
Rating: 4
Continued from the previous scene, Rin continues to use her foot on Mia to reactivate her hypnosis.
This causes Mia to imagine that she’s being groped by her alter self at the same time.
Series Page
Episode Link
Timestamp: 08:21-11:24
Rating: 5
Airi throws a chemical at Touko and Ayana that causes them tied up and forced together.
Airi then lets loose her hand machine, which proceeds to grope both of their bodies.
They both get aroused by the situation, so Touko take the opportunity to kiss and tease Ayana during it.
Series Page
Chapter Link (Pages 48)
Rating: 4
Ruka and Naru basically have a lesbian threesome with Tsuruko when trying to teach her about anal sex.
Series Page
Chapter Link (Pages 43-48)
Rating: 5
Continued from the previous scene, for 1 page, Lilliana and Cassia have a lesbian threesome with Aoi in front of the MC.
Afterwards, the MC joins and the scene turns into a foursome.
Series Page
Chapter Link
Rating: 3
2 sisters attempt to seduce Mashiro into having lesbian sex, but she quickly hits them to stop them.
Series Page
Chapter Link (Pages 3-18)
Rating: 5
Kennedy and Cheryl briefly have lesbian sex with Melinda before inviting the MC to join for a foursome.
Series Page
Chapter Link (Pages 11-16)
Rating: 3
X-TC gropes and fingers Kennedy and Cheryl to defeat them.
Series Page
Chapter Link (Pages 1-22)
Rating: 5
After finding out that the MC had sex with Ui and Uka, they both then invite Mikuru to try it out as well and have lesbian sex together.
Ui and Uka admit to having tried out having sex with each other before.
Saki hesitates to agree, but Mikuru says that she’s interested and says she’ll do it.
Ui, Uka and Mikuru proceed to have a lesbian threesome with each other while Saki watches and masturbates to them, seemingly eager to join as well.
I’m unsure if this will continue into chapter 3, but given Saki’s reaction, it seems likely that it will and that she’ll join.