I began to moan and cry on my ball gag, unsure of whether I was feeling pleasure or pain. It was an intense sort of pleasure, one I had never experien...ed before. Very slowly, he pushed the toy deeper and deeper into my asshole. It felt like it was getting larger as he pushed it further and further in. I felt immense feelings of pain as he pushed it deeper in, but it was the type of pain that kept you wanting more. As he pushed further, there was some resistance, and he was a little rougher in. The very outside of her labia turned out ever so slightly. This always turned me on. I don't care if its true or not, but I've always thought that when they were turned out like that, it was because of all cock she had. I spread her lips ever so slightly with my two fingers and openned her up. My toungue had free range and she was writhing in passion. "Fuck me with your fingers... dig them in deep.... open me up... " I slid in my index finger and there was way too much room. Then my index and. ...it's close Peter....." I looked up at Kimmy and watched as she drooled out of her open wide mouth while playing with both her breasts. Sighing inwardly, I decided that this was my big sister, no matter what anyone thinks about this compromising position, to me she was a female and that was that. Telling myself this sort of put me at ease, however all of my constantly thinking did not prepare me for when Kimmy decided to take it up a notch and stand up, switching positions with me so that I. It was certain that she was giving this guy a clear view and it was also clear that she was loving it. “Do you like showing off?” I asked. “Will you be mad if I say yes?” she asked. “Not at all.” I said. “I rather enjoy letting you show it off, and I like that you make other men hot for you.” At this, Kelli took her hand and started touching herself and looked directly at the guy behind the wheel of the pick-up. I thought the guy was going to wreck when Kelli took her fingers out of her pussy.