HUNTA-942 "Surprisingly, you have big breasts..." "It's embarrassing... Don't look so much..." "I'm not interested in kids like you, so..." Hidden big-breasted little sister and I are alone in the narrow bathroom! Fully erect!

I have a super cute little sister who has recently become a bit more adult-like. Even though she's now in middle school, she still takes baths with me! Honestly, I thought it was bad, but I couldn't refuse and when we got into the narrow bathtub, I found that my sister had hidden massive breasts that I couldn't take my eyes off of! What's more, because the bathtub is so small, her grown breasts kept rubbing against my arm!!! She said, "Big brother... I'm not a kid anymore..." and then she pounced on my erect penis...