gotou kenji, atom (tetsuwan atom), mama (tetsuwan atom), uran (tetsuwan atom), kodansha, tetsuwan atom, sister, translated, 1boy, 2girls, age difference, anal, anal object insertion, android, ass, bent over, black hair, blue background, blush, brother and sister, brown eyes, clothed female nude male, clothed on nude, enema, femdom, hetero, incest, mature female, mother and daughter, mother and son, multiple girls, nude, object insertion, onee-shota, onlookers, open mouth, pegging, rape, short hair, shota, siblings, simple background, smile, testicles, uncensored