SCOP-499 My cousin’s older sister, whom I hadn’t seen in a while！！As we drank and talked, she unexpectedly turned into a nymphomaniac？ As her adult allure gradually seduced me, could I keep my virginity with the girlfriend I love！？

My cousin’s older sister who played with me when I was little. But she hadn’t seen her for a while. Years passed, I grew up, and I had her first girlfriend! ! When I met her for the first time in a long time, she turned into a very naughty older sister. The older sister, who becomes liberating while drinking, reveals her true nature and becomes a bimbo! I wonder if I can protect my virginity! ?