I was driving my brother home from uni and we were stuck on the motorway for what felt like a century. He kept going on about needing to pee but there were no services nearby and no hard shoulder to pull over so I told him he would have to hold it.
Eventually I got tired of his whining and handed him a bottle to pee in. At first he refused but then I told him his options were to either go in the bottle or wet himself, and I REALLY didn’t want him making a mess in my car. Which is why I told him he had to be careful.
He made me promise not to look and I said I wouldn’t but curiosity got the best of me and I glanced over at it as he was peeing. I justified it to myself as making sure he wouldn’t spill any but really I just wanted to see how much it had grown. It honestly made me feel a bit naughty but I couldn’t help myself.