We rinsed off in the waves and walked back naked, hand in hand, and snuck into the house. Mike and I never planned on having s*x or pissing on each other. It just happened. I never knew I'd be into such a thing until that night in the wooden box. Something came over me when I let my bladder release all over my twin brother. When you have held your flow back, it feels really good when you let it go, but this, this was different. Something about peeing on my brother's p***s set me off. When I felt him harden under me, I knew he felt it too—the twin thing. I was too ashamed to talk about it. But I wanted to do it again. That second night. He knew. I knew he would. When we were done, I wanted him to see me. I wanted to see him. Then the guilt. I wanted to talk, but I didn't. My feelings were

