Suddenly he stopped and I felt him oiling my hole. Her then started to rub his nob around my rim. I was getting really aroused when I felt him push...ng into me. It was mildly painful to start with, but as he moved in and out thrusting deep into me the sensation was not quite one of burning but one of warm pleasure.His cock began to pulse and, as he thrust and spurted inside me, the bedroom door opened and Terri stood there smiling."Now you've broken him in its my turn," she said. Taking me. I looked down at myself, and pulled my boxers down so my fully erect cock jutted out. I gripped it in one hand and looked back up at the lovers on the beach. I really didnt know if I should actually stroke myself or not. Watching my brother was already fucked up, but masturbating seemed like crossing yet another line. I was still trying to figure this all out in my head, when, to my dismay: Zach? What are you doing? asked Maddie in a whisper. UH… wha-uhm, I vocalized as I scrambled my cock back. I’m having a nap then go for a swim.”“Great idea dad, coming love?”Carla demurred. Glen and Lachlan lazed about for an hour then had their swim.“You gonna take that thing off darling?” Glen queried, towelling his genitals. “Look around ... see any more?”“I’m not a pretty sight and got a thingy in, so no,” Carla retaliated.Lachlan raised his head, got a wink from his son and whipped the sarong away from Carla’s body. She shrieked, he giggled, Glen laughed as did several nudists in close. "What does that mean?" It means that we're not alone," Vicky declared sharply, keeping her eyes fixed on the distant horizon."Maybe," I responded thoughtfully, "and maybe not. It could be natural." We're not that lucky," Vicky sneered in reply.I didn't argue with her. I knew we weren't that lucky. I also knew that our 'benefactors' had brought us here to see it. Deep down I believed that they wanted us to know that we weren't alone. The new question was, were they more humans like our family or.