HMN-927 | My older sister has become my personal sex doll maid, and I can fuck her wildly and cum inside her as much as I want for three days. (Itsukaichi Mei)

My older sister, Mei—who was overjoyed to finally have a boyfriend again—agreed to a bet with me: would they break up or not? As expected, they split up in no time, so I—her younger brother—ordered her to become my "sexual service maid," complete with a humiliating maid outfit! Despite glaring at me with clear displeasure, she ended up straddling me and grinding her hips while I fucked her deep inside! We crossed the line from siblings to master and submissive maid! Her mouth, her breasts—everything was mine to use as I pleased! I trained her to squirt using a remote-controlled vibrator, an electric massager, and other toys! Though she complained at first, once I ordered her to straddle my cock and fuck me, she couldn't stop climaxing! For three whole days, our roles were completely reversed—nothing but non-stop sex with my "maid" sister!