If I knew then, what I know now, I would not have wasted all those road trips. I think of the times when I wanted to really entertain you as you drove, but I was unsure if you'd be as interested as I'd hoped.
I think back, and see those trips how I wanted them to be, how they'd be now, if I ever got the chance. I see you, driving down a long stretch of boring interstate, making conversation, careful to never take it beyond innocent flirting. But, I lean my seat back, just a little, and pull my skirt up to my waist, or rip the slit just a little more so you can see how wet my panties are. So you can exactly what I'm doing.
I would pull my thong to one side, and slide two fingers deep into my pussy, coating them in the slick juices that are abundant just from sitting across the truck's console from you. I'd ask you, if you knew you made me this wet, and I'd show you how wet my fingers were.
Then, I'd move my fingers back to my sweet little pussy, and rub the warm, slick juices all over my lips, back to my ass, and up to my clit. I'd stop for a moment to really enjoy rubbing my clit, and how hot I was. I'd be frustrated that my thong, no matter how small it is, is blocking your view of what I'm doing, so I'd take it off, and drop it onto the console between us.
I'd smile as you would be having a little more trouble keeping your attention on the interstate in front of you.