The Cuck, His Wife and Her Boss

It all started when Kirsty my wife of two years started working at Barclays bank. She's 23, very attractive and a typical girl next door type with long dark brown hair, sexy size 10 figure and at 5 feet 8 has beautiful long legs. Her bottom and 34 B breasts are perfect and up until this all began, was very reserved and demure. I'm Greg and slightly older at 28 and her boss is from Brazil, speaks very good English, well educated and in his late 50's.
I know it's not her fault, it was me, I encouraged her to let him seduce her. They're in our bedroom right now making love and I can hear everything... I've never been able to make her cum like that and I've lost count how many times. I don't know why but it turns me on so much knowing she's with another guy. It started a couple of months ago when she came home from work one evening and told me her boss had come on to her.
She said nothing happened as we'd only been married a couple of years and even though, I couldn't satisfy her in bed, I know she loved me, and my below average size and premature ejaculation didn't bother her. But him flirting with her turned me on so much, I couldn't stop thinking about it and asked her to tell me exactly what happened. She was a bit reluctant at first, but when I told her I truly loved her and she saw how quickly I became aroused, she told me all the details and we made love passionately for the first time in over a year.
Not that I lasted very long... And now we're in so deep, she's bringing him home to sleep in our bed as I lay awake all night in the spare room, listening to her moans and sighs. She leaves the door open slightly so I can hear and peep through the gap and he knows all about me. Strictly 18+ Adults Only - 9500 Words