At the start of the chapter, Malida began to have sex with the MC, Irena and Lichere a lot more off-screen as her bloodlust for the upcoming battle also increased her arousal. (This is very inconsequential, so I didn’t tag for this part, I just wanted to mention it.)
After the battle, we are introduced to Liese, which upon finding out she’s basically a tomboy, we get these lines from Malida:
“Albert, a girl, who crossdressed as a guy, might be nice as well. I like girls, but women like Liese are my guilty pleasure. She gets me all riled up. I think it’d be nice to get a taste of her.”
Malida then drags Liese off to the bedroom where they have lesbian sex with each other several times off-screen, but we do hear them moaning.
Eventually, Irena and Lichere join them as well and there’s a short yuri foursome while the MC watches.
This is also the first time any of the girls kiss each other on-screen. It’s possible it has happened off-screen before, but it’s never mentioned.
After a while, the MC joins and remains involved for the rest of the scene
While Espada and Red Passion are fighting, Red Passion spawns Slime-like girls to have sex with the 2 other girls still there. A couple are Male formed as well, but they only “attack” Espada or are just pretending to take pics of the other girls.
Black Stocking (In Sharin’s body) ties up all the girls and starts playing with them.
One panel has a very hard to see saliva trail connecting Shana and Black Stocking’s mouths, implying they were making out, but it’s hard to tell for sure.