When I was in my teens I used to absolutely love to keep an erection when alone in my bedroom. I would strip down to my underwear and make a tent, parade it in front of the mirror. And it never took long before precum left a wet spot. It was then I started tasting it probably. That was something else that encouraged me to keep it hard. If I took my erection out of the underwear a big blob of precum came out, I hurried to scoop it up and bring it to my mouth. Only as a young adult I discovered it was a great natural lubricant for masturbation