I feel Mistress move in on me, and nudge my legs out wider. And then yes! The well-greased head of her own c**k begins pushing into my suddenly hungry ass. She slides it all the way into me, presses me back down upon Slut-boy and leans forward, propping herself above us both. In this way her big strong body makes me into the very choicest meat of an incredibly delicious f**k-sandwich. Hearing my gasp of delight she breathes lovingly down. “That’s right girl. Just relax, and let me do all the work. You are but an extension of your mistress, as I butt-f**k you both into oblivion!” She starts thrusting, slowly at first. The sensation is absolutely incredible. With my c**k still buried to the hilt in Slut-boy, her every thrust pushes it deeper yet, f*****g him just as she’s f*****g me. Again