Everyone Has Had To Pee Real Bad When Driving

The diehard people like me don't hold it in very long, because we know it isn't going to do any good and sooner or later we are going to have to let the urine out. I have a car with nice leather seats, and keep some large garbage bags under the seat to put under my rear if I have to urinate while driving.  Once the pee starts coming out and I feel so relieved, I can concentrate much better driving.  A few times I am so horny after peeing myself in my tight jeans that I stop at a rest area, parking near the end, and jack off while in my car. Since I already am in pee-soaked denim, what is some **** along with everything else?