I get an erection from the grown breasts and panty shots of my super defenseless and unsuspecting younger sister who continues to be pampered by me even after becoming a high school student! When my sister found out, I thought it was dangerous and said, ``It's not like a kid like you could get an erection,'' but she got depressed and said, ``If I touch you, even a kid would be willing to do that?'' My breasts have gotten bigger too,” she says as she touches his dick and kisses her deeply! I couldn't hold back any longer and attacked her, thrusting hard over and over again and ejaculating again and again until my sister was satisfied and asked me to straddle her and cum until her dick withered!