I was 13 years old, taking a long hot shower. My dick got extremely hard. I was soaping up, washing everything. Got to my crotch, started scrubbing my balls and everything. Washing my dick felt really good. I put down the wash cloth and wrapped my hand around my cock and awkwardly stroked up and down. It felt crazy good so I just kept doing it. Now I was a bit of a sheltered child when it came to sex, orgasms, masturbation, ejaculation, etc. I continued to just stroke my soapy dick, up and down. Quickly a feeling of pleasure filled my body and then it felt like I got "shocked". I shuddered and almost fell down. I didn't notice the jizz, probably because of the soap and water.