Dani and I washed each other, slowly, lovingly removing each other's sweat from our bodies. We took our time, our hands exploring every part of one another, truly enjoying the newfound freedom of being naked together. It was amazing, to discover something so very fundamental about someone I had been so close to, and so at odds with, my whole life.
I watched lather collect on her skin and disappear again and again as I ran my hands over her body, drinking in the sight of the soft, wet flesh beneath my fingers, kneading and squeezing everything I felt. Dani moaned at my touch, and I gasped at hers.
"What are we doing?" she whispered. Her fingers trailed down my chest, toying with tiny bubbles, dropping low and circling my cock. "Why am I playing with your cock?"
"I don't know," I said. I was surprised at the truth of it. I really had no idea. "When I woke up this morning, I knew that you would always be my annoying older sister. Now... now I have no idea."
"Should we stop?" she asked. Dani looked into my eyes like she was trying to push the question into my brain. Her hand gently squeezed my cock. "Should we pretend like it never happened? Go back to what we were before? Everything was so normal this morning, and now I'm standing in a shower, naked, rubbing my brother's cock." Dani's eyes dropped to the hand stroking me. "That's so fucked up," she breathed.
I stepped closer, the head of my cock nearly brushing her stomach and reached low, my fingers slipping between her lips, brushing her clit. She shivered as her eyes closed and her head dropped back. I felt the heat from her, my fingers finding slickness that came from neither soap nor water.
"It doesn't seem to bother you all that much," I said. I groaned as she squeezed my cock tighter. "And I think you can tell how much it bothers me."
"Does this make us sick?" She asked. Dani's free hand wrapped around the back of my neck and squeezed, pulling my face closer to hers, bumping my forehead against hers, her breath hot on my face. She pressed my cock lower, rubbed it against the back of my hand. I moved my hand and stepped forward. She rubbed it against her clit and moaned into my mouth. "Is this wrong?"
"Probably," I said. "But it doesn't feel wrong." I slipped my hands around her, gripping the back of her thighs and lifting, wrapping her legs around me and letting her guide me into her again. "Does it?"
"No," she moaned. "No, it really, really doesn't."
We fucked again, slower this time, kissing softly and moving together gently. Her body was perfect against me, her legs pulling me closer, her arms around my neck as my cock filled her completely. I pushed into her again and again, enjoying the sensation of her orgasm building, feeling her breath become ragged in her chest, hearing her whisper my name against my lips. I felt her body shudder and my own orgasm grow, my hands gripping her ass and the back of her thighs, smiling against her neck and kissing the soft skin below her ear.
Dani threw her head back and dug her fingers into my hair as her pussy clenched around me, pulsing along the length of my cock, milking me, pulling my cum from me and into her as I lost control and exploded deep inside my sister for the second time in an hour. Dani shook in my arms as we came together, her eyes open wide and staring into mine, lust and ecstasy warring for control on her face.
I sank slowly to my knees until Dani was in my lap, kissing her gently. We rested in each other's arms, my cock still inside her and our breath deep and fast. She smiled and kissed me again before pushing gently on my chest.
"We had better hurry the fuck up," she said. We both moaned as she slid off my lap, my cock sliding out and pulling our mixed cum with it. I slipped my finger inside her, wriggling it around, feeling my cum and hers swirl around with the motion and she giggled. "If you don't stop that, we're never gonna get back to camp."
I smiled and slowly withdrew my finger, teasing lightly as I pulled it out. Dani grinned and grabbed my hand, bringing my finger to her lips and gently sucking our cum from it. My smile widened as she swallowed what she took, and I gently kissed her neck.