The first time it happened, it was an accident. We were just fooling around, roughhousing in the living room. I pinned her down onto the couch and slipped my hands under her shirt, tickling my way up to her ribs. She was laughing, squirming underneath me, and then suddenly there was a gasp in between every laugh. "Oh no," she said, "no wait, hold on... wait... wait! Oh no...! Stop!" I stopped, and she made a strange noise in her throat. My leg was between her thighs and I suddenly felt something warm and wet. I looked down and saw the dark spot growing on the crotch of her pants.
I looked up into her eyes. She was staring back at me, breathing hard. She was waiting for my reaction. I could see the fear behind her eyes, the worry, but I could also see the blood in her cheeks. Her neck had turned pink. We'd been together long enough to know that she was turned on.
I shifted my weight without taking my eyes off her. I unfastened my pants. She looked down and breathed in, but I kept watching her face. I pulled my penis out of my shorts and arched my back. She looked up into my face. Her lips were parted. She gave the slightest of nods. I relaxed, and a stream of urine poured out. It splashed on her stomach, and she twitched. Her eyes went wide, and her mouth opened wider.
She put her hands on my shoulders and didn't look away as I pissed on her. When I was finally finished, I looked down like I needed to confirm what had just happened, then looked back up at her.
"You just peed on me."
"Yeah..."
Her hands moved to the back of my head and she pulled me down. We kissed, and her hand grabbed my cock. It hardened in her grip and I moaned, fumbling with her soaked pants to try and get them open. She lifted her hips and I tugged her pants down to mid-thigh, just enough for me to get into position. The head of my cock rubbed against her pussy and I came, spurting into her pubic hair. I reached between us and I used my fingers on her until she stiffened and grunted and came.
"Are you okay?" I asked.
Her eyes were closed. She was biting her lip. I bent down and kissed her again.
A few days passed. We hadn't talked about what we'd done. We had just gotten off the couch and she went to clean herself up. But I needed to pee and she was in the bathroom, and I decided to test the water again (so to speak). I knocked. She said, "Just a second." But I let myself in.