Standing in the cupboard, strapped to the wall by the neck, my ankles steadfastly secured, was surreal experience.
It was dark, mildly warm, and in a way, it was comforting. How did my Mistress know that seeing her fuck someone else would be such a turn on for me? Actually, I'm not sure that it was - watching her with that guy with the humungous cock was excruciatingly painful for me, since my Mistress was also my wife. I could not help but feel territorial or even possessive about her - I had, after all, devoted myself to her, body and mind first, then in heart and spirit later, which gave her complete ownership of me. I could not bear to think there might be another that could please her in a way I could not.
But the size of the guy's prick was undeniable. My own cock was certainly not small, but it didn't compare to the behemoth she stuffed into her cunt right before my very eyes. I cupped my balls with my left hand and gripped my cock with my right as I watched my wife being carried, impaled, then deposited on her hands and knees on our marital bed. I had a complete side-on view of her taut body as she leaned on her hands and knees, offering herself on all fours to the goon whose cock was already buried deep within her cunt. The muscles in her smooth arms flexed as she braced herself; her breasts swayed gently beneath her, the nipples erect and pointing downwards to the bed. Her back was slightly arched, her butt-cheeks round, her thighs white and welcoming. I wished it were me who was about to fuck my Mistress, not that idiot. I knew being fucked on all fours was the way she liked it best.