Anal.

My first time trying it as a teenager, I went balls deep in my girlfriend with a raging boner, not realizing that lube was necessary. I tore the skin that connects the head of your penis with the shaft. I felt an intense sharp pain, reached below me and felt warm liquid. The bed was stained dark red with a full puddle of blood. In a quick panic I ran to the shower to wash myself and attempt to stop the bleeding. Every time my heart pumped blood would literally shoot from my penis. first on the sink, then the mirror, the floor mat and all over the tub.

Worst part was my girlfriends mom had just left to drop off the younger sister at school. I had roughly 15 minutes to wash myself, throw out the bedsheets, flip the mattress to hide the puddle of crimson stained boner blood. I remember clearly being in the shower and thinking to myself, "her parents are going to find me dead in the shower with blood streaming down from my cock." I've never seen so much blood come out of a body, I really thought I was going to die.