OYC-246 I'm a shut-in who always watches my little sister through the peephole I made in our room. But one day, when my sister is having sex with her boyfriend and our eyes meet, she starts to get even more turned on...?

My joy as a shut-in is observing my sister in the next room through a peephole in my wall. My sister, who hasn't noticed the hole, changes clothes or lounges around on her bed. Sometimes she even masturbates. One day, while I was watching, she started getting intimate with her boyfriend and it escalated into sex! I couldn't help but stare. Then midway through, my sister's eyes met mine! However, my sister continued as if nothing happened! Moreover, several times during this, our eyes met, and each time she climaxed intensely. I felt an indescribable feeling...