[HMN-726] When my cousin, who I played with when I was a child, came to the countryside to play for the first time in 5 years, her boobs had grown, so I was sweating and cumming for a week during summer vacation. Rin Suzu no Ya

Her cousin Rin, who moved to Tokyo five years ago due to her parents' work, decided to stay at her relative's house for only one week in the summer. Yuzuru is an older brother who is two years older than Rin. Rin and I often played with insect catchers together since we were little. Yuzuru's parents were also away part-time, and they met again after a long time, but Rin, who still thought she was a child, had a cute face and had grown to the point where her breasts were unbelievable. Yuzuru, who usually only masturbates, witnesses Rin's nakedness in the bath and becomes unable to control her erection