I could see she was eyeing me with some degree of interest as I sunk beneath the bubbling waters with what I hoped was a graceful and confident air of...nonchalance. I did turn down the offer of the potent drinks that she was swigging down with complete indifference in the before noon time hours.It was only moments later that we were engaged in risqué conversation about the benefits of having identical twin lovers that she started to play "footsie" with me under the water and in all honesty I. "Ummm ... you want me to take off my clothes?" Yes, you be naked too."Okay, this is a first for me. But, getting naked does sound good as my dick is killing me trapped in these pants. I am not usually uncomfortable in the buff, as my body is pretty good, thanks to all my work on the farm. However, I can't look at her as I shed my clothes. She unnerves me for sure. As lovely as she is, her somewhat bizarre behavior rattles me.She doesn't wait long to come to me, her hands reaching out and. When she was alone with Jo she commented how sexy Sam was. Jo said simply, “I know...”Betty was sharp. She immediately asked, “Exactly HOW do you know?”“I’ve been fucking him for a while.”“I want to take over now.”“Can I enjoy him sometimes?”“If I can enjoy your husband too.”“Deal!”Betty was my second pussy ever. I thought I’d gotten pretty good at screwing with Jo, especially with the new things she was learning from Sam. My stamina was good too because we practiced holding off my cumming.. She continued rubbing it and said- “Okay then, go on and fuck me”These were the golden words I was waiting for many months. Although I was little embarrassed that my sexual journey started with a little accident, I was happy inside.I laid her down and asked her to keep it quiet as her mother was in next hall. We removed our clothes only on our lower body parts and I started fucking her like a desperate person. I didn’t start slow because I was already horny and she was too. She just covered her.