Since her parents remarried, Yuzuru has another stepsister. This stepsister of hiss is extremely beautiful, her buttocks are big and round and charming, making Yuzuru always have to peek. Already, she always wore a short skirt that made her T-back panties visible in front of Yuzuru, and he had to try hard to restrain himself. But once, the stepsister went into his room and complained about her buttocks getting bigger and bigger. From college boys to uncles at convenience stores, everyone was just staring at her buttocks. The stepsister had to ask Yuzuru to check if her buttocks were normal. So the beautiful stepsister brought her buttocks close to Yuzuru's face, the cute white panties, the round buttocks that he longed for were swaying in front of Yuzuru's eyes, making Yuzuru unable to hold back anymore! He immediately took off his pants and shoved his cock straight into her pussy! And from there, the wrong relationship of the two began. Even though she said she didn't want to, the step-sister continuously exposed her big round butt in front of Yuzuru, as if she was inviting him...