After walking around for hours one night I was incredibly tired and just wanted to lay down and sleep, so I walked to where my boyfriend works to take a nap in his car. The place he works is right on a small highway, and across the street is a house belonging to the owners that no one lives in and a dirt parking lot for employees out front. So I crawled into the car, out the front seat back down and passed out. I woke up an hour and a half later and needed to pee really really bad. I thought about going looking for a bathroom but just shifting in the seat made my bladder hurt so I said screw it I'm gonna go behind the house. I looked around in the back and spotted a nice dark corner, so I snuck into the shadows, pulled down my pants, crouched and let loose. It felt soooo good at first, but it became real uncomfortable quick because of all the weight and pressure bearing down on my abdomen. I hate squatting to piss and much prefer to stand, but standing is obviously much less stealthy. And of course, when I was about halfway through, a car went by on the side street, but hopefully it was dark enough that they couldn't see me. It left me feeling nervous, but I still had a lot of urine left in me, so I relaxed and kept going for a while longer til I was finally sure I was finished. I wish I could have seen how big a puddle I left, but it was way too dark out. I went back to the car and it was maybe ten minutes later when I had to piss real bad AGAIN, but I waited for about an hour before my BF got out of work and drove us home. He went to a friend's who lives right nearby and I ran, holding my aching pee hole, to our apartment, stood in front of the shower and pissed and pissed. I couldn't help but moan a little because it felt so good.