GS-327 Exchanging intimate exposure and mutual self-pleasure with a friend’s younger sister. While watching an adult video at a friend’s house, I couldn’t hold back any longer and started pleasuring myself while my friend was out. But then I was caught by my friend’s younger sister! What are you looking at?! I snapped back in panic…

While watching adult videos at a friend’s house, I couldn’t hold back any longer and started masturbating while my friend was out. But then my friend’s younger sister saw me! Unexpectedly, she said she wanted to do the same, and we ended up showing each other and getting carried away. Excited by the mutual display and self-pleasure, we went all out, even sneaking around and having sex in the sister’s room while hiding from my friend when he came back!