I had been going out with Debra for just three weeks when her father just suddenly up and left home. From what everyone has told me he was always a jerk, but Debra was obviously very upset. Debra was nineteen at the time and I was twenty two. Then when you think things can't get any worse, they usually do. I had gone round to collect her to take her out for the evening. When I got there all hell had broken loose as they had got a water leak. Neither knew where the stop tap was or what to do about it and they were bucketing the water away from the toilet cistern that was constantly flowing from the overflow. It took me just a few moments to get the situation under control and stop the flow. The ball cock had jammed open and was going faulty. Emergency over I told Debra's mother Gloria that I could easily do a permanent fix the following morning as I would be available as it was Saturday. She was very grateful and suggested that I stopped over to make things easier. Up till now Debra and I had only petted and the one chance we had of consummating our relationship had been disturbed and spoilt. That for me was a real disappointment as I was a late starter and this would have been my first time going all the way. Debra had been with two other men before me and was in no hurry unlike myself. Anyway later I was shown to a spare room and settled in for the night when Debra crept into my room and we finally made love. The next morning I went and got some replacement parts and did the repairs. All the time Gloria seemed to be watching me. As I completed the repair Debra went off to get some shopping for her mother leaving me alone with Gloria. We sat having a cup of tea when I had finished the repair. Then she suddenly asked me if I was sleeping with her daughter. I decided not to lie and told her that I had slept with Debra. Over the next two months I would often stay over at weekends and Gloria allowed us to sleep together in Debra's room. I had a few days off work to use up my annual leave before the end of year and had told Gloria that I could do a few of the repairs that were needed around her house. Debra was off at work when I started into a long list of repairs. Gloria sat around watching me. One of the jobs was to replace the flexible hose on the shower head as it was leaking. It was my last job for the day and suggested that I made use of the shower before Debra came home. I stripped off and was soon under the new shower head enjoying the hot water when I felt a hand on my shoulder. I turned around expecting it to be Debra. Well you can imagine my surprise when I saw that it was in fact Gloria. She was naked and took a hold of my cock and proceeded to wank my cock. Then she dropped to her knees and started to suck my cock. This was my first ever blow job and I didn't last long before pumping my cum into my girlfriends mother's mouth. Time was getting on so we both had to dry up quickly before Debra came home. That night in bed I gave Debra an extra hard fucking as I visualized her mother on her knees with my cock in her mouth. The next morning Debra had barely left the house when Gloria had her hand down my trousers and around my rapidly expanding cock. It wasn't long before she dragged me to her bedroom and stripped both of us from our clothes. This time as she sucked my cock she pushed her pussy into my face and demanded that I lick her. It wasn't something that I had done with Debra, or any other girl for that matter, but with guidance from Gloria I soon got into it. Then she rode me until I came hard and deep inside her pussy. As we lay recuperating Gloria told me that she could hear Debra and I making love. I apologized to her, to be told that I shouldn't apologize as it was a natural thing to do. Then she told me that she hadn't had sex with her husband for over two years and it had caused her to get excited and had to play with herself and her toys. The talk soon had me hard again and Gloria asked me to do her doggy style. Another new experience for me. I was soon slamming into her from behind. I lasted a lot longer before I finally blasted my cum into Gloria's pussy. I did the majority of tasks on the list that day before Debra came home. She commented that we both seemed happy. That night I went down on Debra's pussy. After a good shagging she asked where that had come from. I told her that I had wanted to do that for some time. Debra commented that I could do it as often as I liked. The next day was to be my last day of repairs. There was just a few left on the list and Gloria allowed me to get on with them. The last one completed I was going to Debra's room to get some clean clothes and take a shower. Imagine my surprise to find Gloria totally naked kneeling on the stairs. I was hard in seconds and another first as I shagged her silly on the stairs. Then again a little later over the kitchen table. Fortunately we were all washed up and ready for when Debra arrived back home. That night we went off to the pub. As we left to come home I had a wicked thought and bent Debra over the bonnet of my car and fucked her from behind. We fucked again later at night in her bed. She again asked what had gotten into me. I told her that she was so sexy that I couldn't resist. Over the following months I would shag Gloria whenever the situation allowed and usually Debra later the same day. Then the inevitable happened. Debra walked in on me shagging her mother in the lounge bent double and propped against the sofa. Debra just walked straight past us as if she hadn't seen anything. I came harder than I had ever before. Then once cleaned up I went to Debra's room expecting a hell of an argument. Instead she was calm and controlled. She asked how long had I been doing her mother. I told her everything and to my surprise she still didn't blow her top. Instead she calmly said so that is where you learnt all those positions. I told her it was. Then she calmly said OK but I'm not joining in on a threesome with my mother. She had just given me license to continue to fuck her mother. So things went on as they had with Gloria and I taking the odd times to fuck and then Debra and I continuing our relationship that was going from strength to strength. I discovered that Gloria had been a swinger in her teenage years and that she had been in several threesomes and foursomes and one gang bang. Also I discovered that she liked anal intercourse, which we did on several occasions. I tried it with Debra but she didn't like it or enjoy it, so I kept that as a treat with Gloria. Then Gloria met Gavin and started a relationship with him. To say they were noisy lovers was an understatement. It embarrassed Debra hearing Gavin fucking her mother. I pointed out that they too could hear us when we fucked. Gloria also continued to allow me to fuck her without Gavin knowing. Then for some reason Gavin disappeared off the scene. Things were back as before me fucking both of them. Then it happened. Gloria was in a panic as was I when she told me that she had now missed two periods and thought she was pregnant. I must have been very innocent as I didn't think women over fifty could get pregnant. Was I really relieved as was Debra when the doctor told Gloria it was due to the menopause and that she wasn't pregnant. Debra was worried that her boyfriend could also be her brother or sisters father. In bad that night after a long luxurious fuck she told me that she had made a decision to move to a house she had been looking at and that I would have to choose between her and her mother. I picked Debra and soon we moved into a new house together. A year later we married. The night before the wedding I had one last fling with Gloria and fucked her in almost every room of her house. That was nearly twenty years ago and three children later. I never strayed again once we married.