“You’ve jerked off while imagining me, haven’t you? Or did you use your sister instead?” My adult sister’s shamelessly horny friend closes in with a filthy tease, and my virgin cock instantly gets rock hard and leaks at the tip. When I freeze in delighted panic, she sees right through me and asks, “Want to do it with me?” It is an offer I cannot refuse, leading to the luckiest first-time sex imaginable.