Pleasurable tightness travelled across the surface of my skin. An unfamiliar sensation matching the more recognizable pressure building from my loins....Desire invaded every inch of me subordinating mind to physical senses. Tissues swelled and warmed and throbbed. Id never experienced anything so pervasive and though I would disintegrate if there was no release. He broke away theyve gone he said easing himself out of our prison, wordlessly I followed. No sooner had I extracted myself from the. My mom had no idea what was behind her and at this point, I was getting hard too in anticipation of what I thought was about to happen. David kept the small talk up asking her where she needed more massage and asking her how it felt. Mom was tranced out and closing her eyes in enjoyment.The moment was right and I could feel it coming. If I was David, I would have done the same thing. All of a sudden David reached around in front and under the gauzy chiffon crop top and grabbed a big tit in each. He could see the bump that was caused by one of her nipples. Sam had rolled to face her cousin during the night. His eyes followed the curve of her hip to where the bare skin of her thigh was exposed.He glanced over at Randy, who was in the exact same position he'd rolled into after being given what had looked like a doozy of a blow job.They looked exactly like they had looked the day before.But they were not the same teenagers he'd ridden with to this place. It was as if aliens had taken over. I ran my hands along my sister's legs enjoying the feel of her silken-hosed legs on my body. She responded to my kisses, entwining my tongue with hers; my scrotum contracted, propelling the last of my issue deep inside her. Shelley writhed and wriggled underneath me; she raked my back with her fingernails and grazed my flanks and lower back with her heels.Gradually the intensity of both our orgasms receded. I lay on top of my sister and lovingly kissed her lips, her nose, her cheeks and her.