Martin's voice startled me, I'd been so enraptured that I didn't hear him enter the room. "You OK Doc? Not feeling well?" I turned slowly to face him,... I felt no shame, no embarrassment. I didn't feel the slightest humiliation that he could see that I was masturbating openly in front of him. I stood brazenly, even arrogantly in before him as my hand continued to move inside my knickers. With a knowing smile, Martin advanced towards me,"Ian wasn't kidding, you really are a horny bitch. Let me do. Keith (hubby) and I had gone there to enjoy some sexy fun in the Maspalomas dunes and were relaxing around the hotel poolside contemplating our adventures coming up over the next few days. Where we were staying was not a naturist resort but a family hotel with only a few of us going topless around the poolside. Lynne didn’t go topless and in fact, she was quite shy. She was spending the week there with her mum and her four year old son. Lynne was a single mum, with short mousey brown hair,. ”“Okay, girls, you can move Jason into the guest suite with you, just don’t keep him in there all weekend. His family would like to spend time with him, as well,” said mom.We all sat and chatted a while longer until each of the girls started to retire for the night. Betty said her goodnight, then Mom, Dad, and Angela said goodnight. That left only Melly and me, and she came over and sat on my lap.“So J.J., you ready to go up and ravage your ladies?” Melly asked.“Melly, you shouldn’t be asking. Instead, she put her left knee on the mattress and levered herself up, bringing her right knee over his body while grabbing his cock. Swiping his knob through the trough of her moist vagina she let gravity do what it did best and impaled herself on his erection.She knew he wouldn’t do much more than thrust upward as she rode him until he came, and he always came too soon. I have a clitoris you could rub for Chrissakes. Tell me to sit on your face or tell me that you want to fuck me in the ass..