While my parents were out, my gal stepsister came home heartbroken after breaking up with her boyfriend. It was our first reunion in a while, but she started making fun of me as usual, saying, "You're still a virgin!? Get a job already! Gross!" Frustrated, I saw her lying in the living room with her pants off and her T-back completely exposed, and my virgin cock got fully erect! Unable to contain my horniness, my reason collapsed; I slid her panties aside and went straight for it! Ignoring my stepsister who was furious at my abnormal behavior, I exploded inside her because it felt so good! Furthermore, my tireless cock refused to go soft, and I kept thrusting and creampieing her! She tried desperately to resist, but the intensity of the hard doggy pistoning made her feel too much, and despite her frustration, she couldn't stop cumming!