Isekai Tensei Shitara Okaa-san to Kekkon shite Koubi Suru no ga Gimu da | Reincarnated in Another World, it’s Your Duty to Marry and Mate with Your Mother!
A story about a futanari witch who summons her past self with summoning magic and has sex with her smaller self
Ecchi na Onee-san wa, Suki desu ka? 4 ~Tonari no Onee-san to Ikkagetsukan, Anata no Suki Ho | Do You Like Naughty Older Girls? 4: All You Can Fuck Sex for a Month With the Girls {2d-market.com}
Shiori-Sensei to Minato-Kun no Ochinchin Sotsugyoushiken | Shiori-Sensei and Minato-Kun, The Erection Exam (COMIC Shingeki 2023-03)