"She told me that I might have to…um….convince you." Her hand slyly pulled her skirt hem up exposing a very revealing pair of red silk panties wit... a tussle of blonde hair protruding all around it. "I'm not sure exactly what she meant…." As she let the skirt fall back down into place smiling at me."I still have a fair amount of work yet to finish, are you sure there is no one else you can get a ride home from?" I asked looking quickly back down at the papers on my desk, I was not very sure that. The joke would be on him. Jeannie licked her lips, looked at Ted and said, Damn Ted, you taste great! Can I have seconds on that later? As the laughter erupted again, Jim just shook his head…. Then Peter and Karen pulled into the space next to them. Ted and Jim wanted to help Peter level up his fifth wheel, just to be neighborly. Wearing only a towel, they figured the better slip their shorts on and the girls grabbed their clothes and headed into the van to dress. The guys dropped their towels. It was my sister. Naked! In profile! For the first time ever I saw her breasts. Perky with nipples pointing upwards. And the ass! It was round, slender and wiggled as she walked down the hall towards the bathroom. Just as she was to close the bathroom-door behind her I thought I saw her look over her shoulders as if she knew that I was looking and wanted to make sure that I had seen her.I grunted in pain as I realized that my prick was caught in my trousers and didn't have any space for it to. He kneeled up with his dick out and put his dick into my mouse. I was always good at blowjobs and could deepthroat quite well so I didn't gag too much. That comes in handy when trying to be quiet. He continued to fuck my mouth and I had no objections, I just hoped I'd get my turn soon. Every few seconds he would let me breathe and I'd continue to jerk his dick while I caught my breath.I pulled him closer and just told him to fuck me. He always wanted too but I'd never let him, that was then.