My sister, who always looks down on me for being a virgin, today also snapped at me for no reason and confronted me. When I accidentally presented her with my unwashed, sweaty penis, she wrinkled her nose and recoiled in disgust, but I got an erection out of embarrassment for showing my penis to my sister. Seeing her strongly dislike it, I tried to tuck my male organ away, but she, either aroused or not, pushed me down and mounted me, and we enjoyed various naughty activities.
