When I opened the door to take a shower at my girlfriend's house, there was her sister, completely naked! "My sister's boyfriend? Sorry, I was using the shower," she said, responding like an adult, but I was overwhelmed by the power of her super aggressive erotic body, consisting of huge breasts, a slim waist, and a big butt, and tried to hurry home, but she whispered the forbidden six letters "Don't go back" in my ear, and my reason completely collapsed! Moreover, my beautiful black-haired sister's true identity was an unexpected erotic bitch! I forgot about her existence and did it as my sexual desire dictated. Slutty handjob, footjob, creampie, facial... 140 minutes of being Kokoro by Mizuki Yayoi 's bold seduction.