I was 39 married and had been going to parks and rest stops sucking a lot of dick. One night at a rest stop nearest to my home I noticed only a few trucks parked for the night and no one else. I went in the bathroom anyway grabbing my dick as I went just in case someone was looking. I went into the far stall and got hard and waited a few minutes. Just as I was thinking to go the door opened and someone walked up to the urinal between the two stalls. I waited and didn't hear any piss and started tapping my foot. Soon the guy came around to the front of my stall and I unlocked it and opened the door. He stood there with his beautiful 8 inch cock plumped up and precum glistening on the head. I licked my lips and motioned him to come into my stall. He said he didn't feel safe in there and asked me to meet him in 5 minutes at his green truck. I was nervous but very horny and wanted that cock in my mouth. I went out and knocked on the green truck's door and he opened it up. He was there in the door completely naked! I was totally turned on! I got in and stripped down my army uniform. We got in the back on his bed and I took his hard cock into my hand and stroked him as I opened my mouth and went down on him. I loved the hard yet soft feel of cock as the skin went up and down as I sucked him. He asked if I liked it and I moaned all over his cock for an answer. Then he asked if he could fuck me. I had masturbated a lot over thoughts of getting fucked but I was very scared of the thought of actually doing it. I let his penis slip out of my mouth and sat up. I told him about my fantasies but said I didn't know. He kept talking to me softly cagoling me to get his way. I felt like a girl being talked to that way. I finally told him quietly yes. He told me to get on my knees on the edge of his bed and keep my ass up and my head down. He got some lube and started to finger it into my ass. He lubed up his cock and started to rub it up and down my crack over my hole. Finally he started to push on my hole and try to get his cock in me. He kept pushing harder and harder, but it wouldn't go in my tight hole. He put more lube and pushed even harder holding on to my hips. I think he was about to give up when all of a sudden about 4 inches popped into me! It hurt so much! I told him to stop, but he told me I would be OK. He kept on pushing in deeper and deeper! Finally I felt his body pushed up against my buttocks. He was all the way in! It still hurt, but I was amazed. He started to slowly push in and out. I was being fucked! I never thought about a condom and he never said anything about one. I reached back between my legs to my hole and felt his big cock pumping in and out of me. I loved the feel of his cock in my fingers as I touched my hole! He kept fucking me for about 20 minutes though I lost all track of time. I needed to get home so I told him I had to leave soon. Instead of pulling out he picked up the pace and started slamming his cock in and out of me. There was a constant slap slap slap as he fucked me faster and faster! Then he pulled out and held his cock at the edge of my hole and I felt him throb there about 7 times as his cum went into my hole and down my balls! Once he was done throbbing, he pushed his cock back in a few times and pulled out for the last time and layed down beside me. Wow!! I hadn't gotten hard the whole time he was fucking me I think because it still hurt a little. But when he was done, I layed next to him and my cock jumped up with me thinking about what had just happened. I took it into my hand and stroked it a few times and blew my load all over my chest and even up to my chin. I had never cum so hard in my life! Of course I never saw him again, but that was the start of a lot of cum in my ass!