"Hey virgin, want me to take care of that for you?" My former delinquent sister-in-law always had her panties on display - so vulgar and sexy! She constantly made fun of me and my virginity, but one day she noticed my excitement over her panties and found it amusing. It led to a tempting invitation. Turns out, my sensitive sister-in-law was also getting turned on, and in the end, I lost my virginity to her!"