He was trying to get to Albuquerque New Mexico. I told him I was going to El Paso and would be going through there and that he could ride as long as h... wanted. We started talking and after several minutes I guess he noticed that my cockhead was still sticking out my pants leg. Larry said “Hope that doesn’t get sun burned.” I put my hand over it and said, “it won’t.” I slowly started stroking again and naturally my cock started growing. He looked at me asked “Mind if I join you?” as he unzipped. Anyway, we all started touching each other. One of the girls who had these big red lips moved down and started to suck my cock. The second sister began to rub het clocolate soaking pussy all over my face and the third joined the first and they both took turns sucking my cock. I pushed all 3 off of me and took the one who was making me eat her, threw her on the bed, picked her legs high in the air and shoved my cock deep in her ass without lubing it. I fucked her ass dry. She screamed but one of. For one of my forensic science labs we had to do DNA testing. I used cigarette stubs from both Mom and Dad for the test and guess what it revealed; they are brother and sister." What!!!," she exclaimed, "how can that be?" I'd guess they just live together as husband and wife but couldn't ever get married. That might be why they moved over a hundred miles from any relatives when they were younger. I didn't want to confront them about the results of the test, but the situation has changed. Once I. "Sandy!" the other guy said, his voice raised slightly. I immediately realized that I was both busted and it couldn't have been any luckier. All three of them appeared to be nudist sun worshippers also."Hey it's cool dude. We come here for the same reason." the shorter guy said, as he pointed at my shorts, hanging over the back of my chair. "You don't have to worry about us saying anything. We came here to camp and lay out all weekend." he continued, "You okay, if we join you and camp here?".