I was in my locker room on an autumn morning for water polo that we were doing in PE. I realized that I forgot to bring my spare pair of underwear and I wasn’t gonna get my only pair wet, so I went to waterpolo with my swim trunks without any underwear. The one oversight was that my crush was in my class. It was usually never a problem because my tight ass underwear would strap my erection back like a ward pinning a down syndrome psychopath with parkinsons. When we got to the pool I saw her in her bathing suit and my cock went up like the apollo 11. To hide my boner, I decided run and dive into the pool. Big mistake. My friend tried to catch my and grabbed the back of my trunk. Not only did they rip off clean without a speck left on my ass, but I tripped and never made it into the pool. I covered my junk with both my hands and jumped into the pool, all while my ankle was letting out a steady trail of blood. Seeing the chaos, the teacher made my class to go back into the locker rooms. They obliged while laughing. My teacher handed me a towel and I got out of the pool to wrap it around me cuz i didnt want to get my towel wet. I told her to turn around but she turned back permaturely and saw my cold penis. It was small at the time since the pool was cold, but those excuses werent of matter. She laughed and called it small. I went back to the locker room while all the guys laughed and when they all went back outside, I put on my regular clothes in private. I went to the office, told them I felt sick and my parents picked me up. I told my mom what happened and she said “dont worry, your father isn’t very well equipped either”. Fuck my life, the worst day ever.