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So desperate in the car, I had to stop but the layby was so busy I couldn't get out and pee. Luckily I had an incontinence pad in my bag so I put this inside my panties and carry on driving to the shops, hoping I make it to the toilets. I arrive in the car park and omg I'm so desperate. There was no way I could walk to the toilets so I had to pee sitting on the edge of the car. My pad and panties are absolutely soaked. Luckily I had a pullup too and my plastic panties in the car so put these on so I could go shopping and not worry about any more accidents. While looking for groceries, I pee again and omg my pullup fails and I have pee in my plastic panties. Although this bit is not shown as I couldn't film without being noticed, I'm walking around and head to the checkout with pee leaking from the plastic panties and it's all running down my legs. I head to the supermarket toilets to check it out and put my pullup in the bin, leaving my plastic panties on and leaving the shop.