Before he knew what his mind was dreaming up, he felt the sister/wall wrap her lips around his cock.He was cumming before he had a chance to stop. His...eyes opened, only to discover his sister's head in his lap, lips locked around his cock as he shot his load down her throat. Never in all the many years he'd been masturbating had he ever felt a sensation like this. Warm, wet, and so full of bliss, he just kept pumping his seed into her willing. It was not long before he decided he could push his cock in me. One night after he got me naked, he told me to bend over and he proceeded to fuck me by pushing his huge cock in my cunt. I thought he was going to split me in two the first time. Then he fucked me hard till he filled me with his cum. Every night he then fucked me.One night as I got naked in front of him he had me bend over and rubbed a gel on my ass. His finger then pushed the gel inside my hole. I moved not wanting his finger up. “Deal,” replied Kim with a smile. While the night might be lost, there was always morning.“I’m kidding,” said Ed wondering what he had just done.“Can’t go back on it now,” said Kim as ideas started running through her mind. She added, “You said you’d sleep naked, so you have to sleep naked.”The two of them worked side by side through the day collecting rocks. In terms of interesting samples, it wasn’t that good of a day. However, they did find a large cache of quartz crystals that would help. I do and then get out, I hold the flashlight, and I watch as his muscles ripple under his shirt as he proceeds to change my tire for me. When he is done , he wipes his hands on his pants and looks at me with desire in his eyes. I stare back and then I am in his arms again. His mouth is crashing down on mine. He pushes against me, pressing me into the side of the car. His hands travel up and under my shirt, finding my breasts, he starts to knead them. He lifts my shirt up and dips his mouth down.