Best Mistake Ever

I was twenty at the time still a virgin and camping with relatives. A large family gathering where all the family got together every two or so years. I'd been getting on very well with my cousins especially one, Leesa 19 shared her tent with her sister and her sister's husband. I overheard the sister, and her husband were going into town for a concert and would be staying there overnight. I thought wrongly Leesa would be alone, when in fact Leesa talked her sister into taking her along. I was away from camp when they left so didn't see Leesa go. Anyway, as there was available my aunt by marriage Teegan 47 decided to get some peace and quiet. Uncle Ralph 53 snored badly after drinking and had a skin full that day. I waited until everyone had gone to their tents and made my way to Leesa's tent. I approached slowly softly speak to Leesa, only it was Teegan who guessed why I was there and played along. Leesa and Teegan have similar builds and in the dark I couldn't see who I was talking too. Teegan was a bit randy herself and had been playing herself before I arrived. She asked me to get naked, at first, she said later she just wanted to frighten me when I was naked. But her eyes were used to the dark and seeing my cock she got the urge to fuck me instead. Anyway, she let me know it was Teegan not Leesa but told me I could stay if I wanted too. I was at first stunned and a bit panicked, so while I was thinking of what to do, she took hold on my cock and started playing with it. I decided to let her continue as she had me by my cock and balls. She had me lay beside her and she started sucking my cock I came into her mouth without telling her, so she made me go down on her. Then she mounted me and rode me until I came again, after short break she had me fuck her again. I left the tent just before sunrise and back to my tent, totally drained. The next night Leesa was back, but her sister and brother-in-law were with her. But my small tent just a few feet from my parent's larger tent where they were with my younger siblings. I'd it to myself and was visited by Teegan who wanted a repeat of the previous night. Uncle Ralph liked a drink, and he was totally out to it snoring his head off Teegan said. On returning home Ralph and Teegan lived just a few streets away, weekends I would visit Teegan while Ralph played golf, her children were out doing whatever they were doing. I would get a text from Teegan, Free and I would visit her, and she would fuck me. Now 29 have my own wife, Teegan every now and then will send me a text Free if you are. I send back a happy face and go and visit her, my wife works as a nurse. Uncle Ralph still likes a drink and playing golf, my wife is great friends with Teegan and knows I visit her quite a lot but thinks it's just helping her with things. Well, I am you could say, I helping her being sexually satisfied. What started as a mistake has turned out to be perfect arrangement. Leesa hasn't married and came out as a lesbian when 21, she friendly as ever, just prefers women to men.