Do you know the pleasure of a prostate orgasm—the kind of climax no stimulation to the cock can provide? This beginner-friendly male anal-training story keeps the setup light but makes the play intense. My girlfriend's filthy-talking, curvy adult older sister secretly seduces me, works over my ass and trains my prostate behind her sister's back. The thrill of being discovered and the taboo of surrendering to an entirely new kind of orgasm make the encounter even hotter.