[Tsyatu] Nano-chan is My Little-Sister's Friend (COMIC Mate Legend Vol. 62 2025-04) {Mistvern}

A timid schoolgirl friend of the little sister sneaks into her brother's room, offering a drink that quickly turns into a heated encounter as his hands explore her body while she moans and begs for more. The scene escalates when she strips off her skirt, revealing stockings and a panty‑less state, leading to vigorous grinding and an explosive climax that leaves her drenched. Despite the shocking revelation that she never consented to sex with her brother, she embraces the secret, promising a new beginning together.