Mizuki Akai, her massive tits straining against her low-cut blouse, finds herself in a steamy, cramped room with a mysterious, unseen partner. As she hikes up her skirt and slides her panties to the side, she feels a thick, throbbing cock pressing against her ass. She reaches back, guiding it to her soaking entrance, and with a moan, she pushes back, taking the entire length inside her. The faceless lover grips her hips, slamming into her, his balls slapping against her clit. Mizuki's tits bounce with each thrust, her moans echoing in the tiny space. She feels the cum building, and just as she's about to scream her release, the stranger pulls out, coating her ass and back with hot, sticky ropes of cum. Mizuki, panting and covered in sweat and semen, collapses onto the floor, her body twitching with aftershocks.