Wanting Sex

Brief history, I'm married, my wife went off sex after the birth of our third child. Not wanting sex as regularly as before the birth of our last child. I was lucky to get sex once a fortnight, but since she gone off sex it's once every three or four months. I still loved my wife and just wanted more sex; I really like sex. After almost 2 years my luck changed, I hired a woman in her fifties, she is attractive for her age and 15 years old than me and 17 years older than my wife. I found myself looking at her as she bent over or moved about the offices. But I didn't make a move on her, only when she asked if she could get extra work. Did I get her to do extra work for me, my usual massage therapist retired, I ask lady to find me a replacement. I've an old football injury and like to get treated regularly even if it's not acting up. She told me she uses to do massages for a female basketball team but was replaced by a younger woman and she offered to do my massages for me. At first nothing happened sexually between us, she would do a massage once a week. I paid her cash in hand and had bought a table and put in a spare office at my offices. She done a great job and I really looked forward to the massages. During a massage I got a hard-on, it didn't faze her, she said she would take care of it for me. With her masturbating me, it started a regular problem as I kept getting hard-ons after that. She would get me off each time and I started feeling her up while she masturbated me. Finally, we had full sex, the dam broke as a result sex became regular between us and still is. She is now my office manager/PA and goes away on business trips with me. She is a no-nonsense type and nobody things we're up to anything together. I'm not paying extra now as she is on a good salary and sex is for our mutual benefit.