Helping my wife's cousin move, had several bonuses.
Recently my wife volunteered me to help her cousin move to an adjacent state by driving a Rental truck with her belongings. Her cousin is the same age as my wife, a month older actually, and we have been close for a long long time. Stephanie, her cousin, lost her husband last year and was moving to their summer home permanently.
Steph has always been a sexy flirt with me and although I love it, my wife and I just laugh it off. I learned on the trip that Steph was dead serious in her sexual interest. As soon as Steph and I left the city heading west, the flirting began in earnest and with the two of us in the only seat of the truck it was close quarters flirting.
Within an hour she needed to make a pit stop and when we got underway it was very obvious that she had removed her bra. She has the biggest nipples I think I have ever seen and they were trying to escape from her long sleeve t-shirt. She buckled in next to me this time, not by the window. She was grinning like crazy and rubbing her nipple against my upper arm. My reaction was involuntary and immediate. My dick was trying to crawl out of the bottom of my cargo type shorts and it was pretty noticeable. She began to tell me how much I turned her on and how much she had wanted us to explore a physical relationship for many years but didn't want to hurt her husband or her cousin. She also said that she always saw how I looked at her and liked it when I would 'accidentally' rub against her or touch her.
She started to rub the inside of my thigh up and down slowly and asked me if I liked that. Of course I said yes and was fidgiting in my seat because of the discomfort of my hardon. She asked me if that was because of her and laughed. She offered to help me and then reached up inside the leg of my shorts and pulled my dick out of my shorts and pulled up the leg of my shorts so that the head of my dick was exposed. She looked at me and asked if she could rub it a bit and over the next couple of hours we talked about what we were doing and agreed that it would never leave the two of us.....all the time she was gently stroking my dick and rubbing the head with the precum that kept leaking out. Finally I pulled into a rest stop and pulled to the furthest parking spot for trucks and killed the engine. I hadn't even set the brake yet and she was sticking her tongue down my throat. She said she didn't want to screw in the truck...too risky but almost anything else was o.k.
I immediately pulled my shorts and underwear off and had my hand on her bare breasts and pulling on her nipples gently. I discovered very quickly that her panties were in her purse as well. She told me that she wanted to see me cum...something she used to fantasize when she was screwing her husband and began to milk my cock slowly. I didn't last more than a minute I know and it was a toe curler. As soon as I recovered I returned the favor and she didn't last as long as I did the first time. The trip took two days and I needed to get on the plane home just to give my poor sore dick some rest. I'll put some more of that trip in another submission later on.