My stepbrother's favorite thing is my nipples... This perverted, lustful brother, who has been observing my breasts since I was little, made me reach orgasm by playing with my nipples... Kitaoka Karin MIAB-577

[I want to play with Karin-chan's erect nipples!] Her parents remarried when she was young, and she gained a stepsister. They became close, like real siblings… but the older brother, increasingly excited by her growing breasts, began to observe them. Then, he secretly looked at her erect nipples, and the urge to touch them exploded! Unable to resist, he played with them, and she cried out, "Brother, no!" But each time his sensitive nipples were stimulated, seeing her convulse, his lust went berserk! The momentum couldn't be stopped, developing into nipple-kneading sex! The younger sister, experiencing multiple orgasms due to excessive pleasure, accepted her brother's erotic and sensual development training. "I'll make Karin-chan a premature ejaculator with orgasms!"