I felt a little shame at first. Why was I so hard? This wasn't my biological sister, I reasoned. This was a naked teenaged girl with a gorgeous pussy,...opened up for my viewing pleasure. Even though her pussy was spread wide open, her slit was still tightly closed, except for a faint crack of an opening. Beside the sofa was a small lamp, the light was hitting the juices that covered her inner lips. I couldn't believe how small her slit was! How could her pussy ever accept a cock? I was. The car seat was surprisingly comfortable. With one foot anchored to the floor, it gave me excellent leverage. I pressed our drenched pussies together and began to fuck her hard. Our pussies were both squirting now, all over each other. It was one of the most incredible things I've ever felt. So fucking wet! Back and forth we went. Each time she came, I would feel her squirt right on my cunt, and it would trigger me to have another orgasm. I could feel how ridiculously wet the car seat was. .you wanted to fuck, now we're fucking...' My feet was resting in the hollow of his knees as I felt his man hood twitching and throbbing as he emptied the rest of his load into my now sore bung ole. Our bodies drenched in our combined sweat, Ron kissing my ear and neck saying '...you're and good piece of ass, I like how tight you are...' Exhausted and sore I asked Ron '...let me up, you've had your fun...' Ron said '...we still ain't finish, I'll let you up and we'll start again...' Dumbfounded. “That was so mean! When he said, ‘Be seeing you’ then winked at me, my knees went weak and I lost my breath. Bite his sack for me as punishment. kisses.”“Lol, he likes the pain so we will have to come up with another idea for a punishment. kisses.” She replied.We laughed at the text and joked about how she could not punish me because I found everything she did erotic and exciting.We kissed goodnight and before I turned to leave she reached out and pulled my hand causing me to turn towards.