My lovely, slender, brunette, teen stepsister with small boobies and a perfect body caught me sniffing her panties and jerking off. She admitted that she also has sexual fantasies about me and, though thinking it to be rather weird, couldn't resist the temptation to enjoy my cock but for the first and only time. She sucked it so passionately and rode it so wildly that I couldn't control myself and impregnated her.