"Sister-in-law! What are you doing?" While his wife was back at her parents' place for childbirth, Shunya was enjoying a brief taste of single life. But while he was masturbating, he was suddenly called out to from behind by his sister-in-law, Erika. She had come to check on him since she was worried about him being alone. He hurriedly tried to cover his crotch, but it was too late. Seeing Shunya's rock-hard cock, which had been pent-up due to his wife's absence, Erika smiled with an expression as if she were plotting something. There is one week left until his wife's expected delivery date. A dangerous cohabitation with his erotic and reckless sister-in-law has begun.
