GVG-647 — My Big-Breasted Sister Is Teasing Me All The Time And It's Getting Troublesome Marina Yuzuki

I've failed the entrance exam twice and I've got no choice... If I fail this time, my parents will force me to get a job. I'm staying at my relatives' house in Tokyo for about a week to prepare for the university entrance exam. There, I met my cousin, who used to have small breasts, but when I met her for the first time in a while, she had huge breasts. When she saw me, I was captivated by her boobs that shook every time she moved and got an erection, and ever since then, my cousin has been tempting me...