DRPT-089 Big-Butt Sister Mihina — Perverted Brother Gives Her a Strange Anal Drip, Turning Her Anal Sensitivity Dozens of Times Higher - みひな (あずみひな、永井みひな)

About this work

My sister's anus is mine! One day, aroused by his sister's butt, the younger brother secretly concocts a mysterious liquid in his room! It was an astonishing fluid that increased the sensitivity of mucous membranes by dozens of times! The brother sneaks into his sleeping sister's bedroom and injects the liquid into her anus while she sleeps! Unaware that her anal sensitivity has been heightened, the sister feels some discomfort but becomes addicted to the pleasure of anal stimulation! Riding his momentum, the brother even prepares an IV drip and injects a large amount directly into her rectum! With an enormous volume forced into her anus, the sister's sense of self collapses! She goes insane from anal sex!