My bad luck turned out to be good luck

I had been playing up missing work and failing to complete jobs assigned to me on time. Working for the family business isn't that great, the family expects you to work harder and longer than any employee. I hadn't gone to university as I didn't study and so I got all the dirty jobs so to speak. At 23 I missed completing an order on time because I wanted to go on a date. The date was a failure sex wise and also because I got sent to work with my father's sister Joan single and a ball crusher by reputation. I was to help out as long as needed and with her reputation, hiring a replacement for me wasn't really likely. Also, I would be away from populated areas and so no local nightlife to investigate. I hadn't seen much Joan over the years and couldn't put a face to the name.
Anyway, I arrived at the property and was met by Joan a slender woman with sunglasses and not smiling. I was shown my room and then straight to work, I knew I had to behave if I ever wanted to be recalled. The first 2 weeks she only spoke to me to tell what I was to do. Anyway, I got a break a day off work as the wire hadn't arrived and the fencing would be delayed a day, the company delivery truck had broken down, then fixed and would arrive late in the afternoon. So, I decided to go the small lake on the property for a swim, I only took a towel and intended to swim naked. I had a swim and was laying on the shore and decided to masturbate myself. I hadn't thought about the time and Joan came looking for me for lunch. She caught me cock in hand and told me lunch was ready and left, I got dressed and followed expecting a telling off over lunch. During lunch she didn't say anything, I thought she would tell my father instead of saying something to me herself. After lunch was over and everything put away, I was going to my room to lay down and wait for the delivery.
Seeing me heading towards my room she was I going to play with myself. I said no and she replied pity I thought we could help each other. You could've knocked me over with a feather, but I quickly regained my wits and replied I am willing if you are. Good she replied and suggested we use her bed. She really drained my balls and had only just got dressed when the delivery truck arrived. After the truck was gone it was almost dinner time and then we showered together and spent the night together. Working with Joan changed after our starting sexual relationship, I was sleeping with her every night. Not always fucking her, but I got regular sex from her. I've been living with Joan 5 years; she is 54 and I'm 28 almost 29 and I've a girlfriend Judy 24 in closest town a nice quiet girl who I'm very fond of. Joan helped me bed her and regularly joins us in threesomes. So, as I'm settled on the property with Joan and Joan sleeping us both I asked Judy to marry me, she accepted. My father wasn't sure I'm ready for marriage, but Joan says I am, so he changed his mind.