Jogakkou de Otoko Hitori na node Kousoku de Seiyoku no Hakeguchi ni Sareru Nichijou – Chapter 4 Scene 2

Series Page
Chapter Link (Pages 51-64)
Rating: 4

The MC has a foursome with Aoi, Lilliana and Midori.

On Pages 54 & 57, Aoi and Midori are briefly shown having lesbian sex in the background while the MC was having sex with Lilliana.

The MC quickly rejoins afterwards, so it remains a foursome for the rest of the scene.

Kaikan Change – Chapter 5

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Raw Chapter Link
Rating: 5

While the MC is inside the FMC’s body, he takes a bath with her friends. The FMC’s friends are completely unaware about the body switching.

While they’re showing off/comparing their bodies, they start to get turned on and curious about having sex with another girl, so they begin to have a threesome together.

Still unaware that the MC is in the FMC’s body, he tries to say that it would be cheating, but the other 2 girls tell him it’s just a “little friendly play between girls.”