My cheeky little sister, always mocking me for being a virgin. One day, while she was tempting and teasing me in her usual careless manner, I couldn't hold back any longer and attacked her. Though I, being a virgin, knew nothing about sex, I kept thrusting instinctively in pleasure. Despite my sister's promiscuous reputation, she was coming multiple times! Without hesitation, I continued my relentless pistoning.
