Chishojo Fuuki Iin no Minna ni Ienai Inbi na Onegai – Chapter 6

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Rating: 5

After Saki’s mom finishes having sex with the MC, she has sex with Saki as punishment for hiding her relationship from her. Saki gets very turned on from having sex with her own mother.

Eventually the MC rejoins them and it remains a threesome for the rest of the chapter.

Saki’s mother is married, but there’s no “Cheating” tag because she got permission from her husband to have sex with them.

Different World Girl – Chapter 2

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Rating: 5

Philia comes home expecting to find a present from the MC, but she mistakenly thinks it’s a girl (Mary) that’s unconscious on the bed that the MC saved earlier without telling Philia.

Since the MC isn’t home to clear up Philia’s misunderstanding, she ends up succumbing to her desires and curiosities about human girls and has sex with Mary for the whole day.

The MC comes home at the end to find that Mary had completely fallen for Philia.