Been into rubber bondage all my life, since age of eighteen. Married then to an older woman, of almost insatiable desires, who didn't care what she had to do to get what she needed. Mow, years later, she is bored, and offered me a choice - divorce, or let her have one or more lovers. Since I was still getting what I needed, I settled for option number two! Then she decided a threesome was what she needed, and knowing I was seriously straight, almost to the point of homophobia, she manipulated me into unwilling agreement, via her favorite device - a full-head rubber hood, with a gas-mask built into it, and the hose to the filter replaced by an epoxied-in valve, which, when the switch was removed, left only a nub with a hole for an Allen key, enabling her to cut my air supply to nothing, or close to it, in such a way it couldn't be readjusted without the Allen key which she wore on a gold chain round her neck. The hood has enough length to lie on the shoulders, thus enabling it to be chained in place round the neck, and padlocked. The eye-pieces are privacy glass, so that I can see out, but only blank black circles show from outside. I am at the mercy of her Allen key, being utterly unable to adjust the valve without it, and equally unable to remove the whole assembly! So, that's when she decided to bring one of her 'friends' in for the threesome. Her small walk-in closet has been converted into a "cell" with a wrought-iron door under the heavy outer door. That way I can be part of the action, but safely locked behind bars. When privacy is desired, the outer door is closed and locked, and the cell becomes silent and utterly devoid of light. Her guy was fascinated by my appearance, through the bars, and she ordered me to come forward and lean on the bars, where my wrists and ankles were tied to them. With only just enough air to preserve consciousness, I let myself be fondled and caressed by another man! I was repulsed by it, but couldn't even pull away from it, and to my shame and humiliation, I became massively aroused very quickly, to their great amusement! He tied a cord round my roots, then to the bars, and they fell onto the bed, and coupled frantically, before my very eyes! Once finished, they dressed and went off for a meal, after closing the heavy outer door on me. Seemed like ages before they returned, and exposed me once more. "Wank him to death!" ordered my drunk wife, and her partner laughed and said "I'd REALLY enjoy that! Lemme see what I can do!" He turned me into a writhing moaning maniac, as the arousal built and built, with him always knowing exactly when to stop, before I could come, and driving me out of my mind! They roared with laughter at my need, and strung it out unbearably, just barely touching the incredibly sensitive head, as I emitted muffled roars, and gasped for air. When I finally came, it seemed to go on forever, and shot halfway across the room! Then they untied me from the bars, and closed and locked the outer door, and pitch-black silence descended on me, as I slowly recovered, curled up on the floor. I was conflicted, as the idea repulsed me, but I had experienced arousal such as I had never dreamed possible, and found myself sickly looking forward to the next session! Five years later, things are exactly the same, and mow I just want it to go on forever!