My wife ties me up in a hooded latex straitjacket, before we have sex, and she likes the superior position. The eve of my three week vacation spell she arranged me like this, then revealed that one of her friends had told her I'd come on to her, and wanted her to do the latex thing with me. She wouldn't believe my denials, and brought a guy she'd met at a bar home, and now introduced him nicely, now that I couldn't see him, or do anything to fight back. Then they made love on the bed beside me, and between them they teased me close to orgasm, without ever letting me come until I was crazy with the need. He stayed with us the entire three weeks, and they put me through a hell of humiliation and orgasm denial, until I thought I would have a stroke. She particularly enjoyed watching him masturbate me endlessly to the point of orgasm and then stop. They screwed multiple times each day, and enslaved me wickedly 24/7 for the entire three week period, until the final humiliation of having to admit I had really enjoyed it, and wanted it to become a regular thing, evenings and weekends.