Sayuki visited her parents' home to celebrate her niece's entrance ceremony. Her mother and sister were out shopping, leaving only her brother-in-law at home. Avoiding her brother-in-law, who had been drinking since noon, she went to take a shower. He forcibly entered the bathroom, and there was an enormous penis she had never seen before! She was pushed onto the bed, and every time it penetrated her, she rolled her eyes back and convulsed all over…
