Nympho Maman Boshi Soukan – Mama no Shikyuu wa Boku no Mono – Chapter 3

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Rating: 5

While taking a shower together, Mihori seduces and has lesbian sex with Natsuki.

Near the end of the scene, Mihori asks to continue in her room, and it’s implied they keep having sex off-screen, which we see a little bit of next chapter.

Natsuki calls Mihori “Nee-san,” but they’re related through marriage, not by blood, so I won’t tag this as Incest.

Lucky Guy – Chapters 52-53

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Rating: 5

Ms. Kang and Yujin stay at a motel together after staying out drinking. After Ms. Kang hears Yujin’s story, they start having sex.

When Ms. Kang wakes up, it briefly shows the sex scene again, implying they had sex all night long.

On the way to school, Ms Kang holds onto Yujin’s arm like they’re a couple.

This has the “Cheating” tag because Ms. Kang does this behind the MC’s back. He does find out at the end of Ch. 53, but he didn’t seem to mind.