They both had frustratingly sat down out of my line of sight, and I struggled to see what they were doing, was this stranger a lover, was my mother fu...cking strangers on holiday.I got up and went inside, dropped my towel and pulled on a t-shirt, that fell down mid-thigh, and went next door, to mum and dads room.The room door was slightly ajar, mum must have left it so, and as I knocked and went in, I called out, and heard daddy reply from the toilet, he was showering.I went back to his balcony. I watched, as he looked at me. I could see him grab his hard cock in his right hand, He moved closer to Sharon. I watched his face, as he mounted her pussy, from the back. She gasped and he smile at hearing her, while he looked at me. When she gasped, my pussy responded. I didnt know what was going to happen to me, but I was excited. He placed his hands on each side of her hips. She looked so small, between his hands. He smiled that sly smile of his, as he pulled his cock back and thrust it so. I started really screwing her fast. Without any real thought, I found myself pumping in and out on some sort of autopilot. I somehow knew my body changed the angle I was fucking into her, move her legs differently, reached up to pinch her nipples, and yet I wasn't consciously controlling anything. Another odd thing happening was that my dick felt numb as we fucked. Looking inside her, I could still not see any orgasm energy anywhere in her body even though she seemed to be having orgasms to me.. "They want to put a Band-Aid on the owie, so they can think about something less troublesome." Anyway, I just wanted you to know I trust you. You're the only man I think I can trust right now."Bob groaned. "Thanks a LOT!" What?" she looked hurt."You trust me? That's the kiss of death! Next you'll be telling me you just want to be friends!"She blinked, then laughed. "Are you FLIRTING with me?!"He shook his head. "Wouldn't be ethical. You're vulnerable right now. Add that to drop dead gorgeous.