Lucy guy

I was waiting for the bus yesterday and there was a young girl of around 16 or 17 in front of me and she was hopping and fidgeting like she needs the toilet very badly. I thought she only had to pee but after a while she froze as she peed down her legs and in her trainers. The smell of poo filled the air and I watched the bulge growing in the back of her jeans. It was huge and she apologised and explained she'd been holding it all day and she just couldn't wait any longer. When the bus arrived I took the seat behind her so I could watch her gingerly sit into the pile of poo that had filled her knickers. It was a real turn on to see her grimace as the poo got mashed up around her bum and and I masturbated through my jeans under my coat until I came in my pants.