HHKL-169 My little sister wears an oversized shirt without a bra and pants and gets fully erection! ! Kuramoto Sumire

My little sister always wears my clothes without her permission. My petite little sister is the exact opposite of my big one. My younger sister looked at my shirt again, and when I looked twice, she was surprised to find out she had no bra! What's more, he's completely visible without even putting on his pants! It's a bit too visible! I was surprised, but still got an erection. When my younger sister noticed something strange about my lower body, she suddenly started to get bored... Until now, I have not felt sexually attractive to each other.