Alone with my thoughts and a throbbing hard-on, I slip a lady's thong into my ass, savoring the tight, silky sensation. My mind races with filthy fantasies as I stroke my massive cock, pre-cum dripping onto the floor. I'm interrupted by a knock at the door - two horny strangers join me, eager to turn my solo session into a threesome. In doggystyle, I take both their cocks, one in my ass, one in my mouth, as they pound me hard, my thong still firmly in place.