Imouto Bitch ni Shiboraretai – Episode 2 (RAW)

My Little Sister Is a Living Onahole – Sayaka Is Onii-chan's Personal Sex Toy

One day the protagonist returns home and notices a strange hole in the wall of his room. Curious, he peeks through and sees his little sister Sayaka masturbating intensely in her own room. The next day, he musters up courage and pushes his erect penis through the hole. Sayaka, thinking it's a fun "mushroom" toy, starts licking and sucking it enthusiastically. The usually tsundere sister, who could never be honest about her feelings toward her brother, finally gets what she's always secretly craved — raw, passionate sex and a deep creampie from her beloved onii-chan, all thanks to the convenient gloryhole in the wall.