“Deeper,” I managed to groan, my brain lost somewhere between the violent surf of my ecstasy and the bliss of some strange, dark, endless sky. “Deeper, baby.”

Tom’s body was heaving, helpless against the hot pleasure of my insides. He gasped with agony and pulled himself even deeper into me. I wiggled under him, moaning deliriously. I seemed to have loosened enough to accommodate him, but just barely. Tom was sweating. He was limp with pleasure, even as his rock-hard shaft throbbed inside of me, trying to make itself even harder.

“Baby, I think I’m stuck.”

I limply held his hair, ragged with desire. “I don’t care, big brother, just fuck me as hard as you can. There’s only one way to get you out of my tight little pussy, and that’s to fuck me until you cum. I need you to leave all your hot, white cum inside my little hole. Can you do that, big brother? Fuck your little sister’s tight little hole like she’s a little cum slut. Fuck me hard.”

“Baby,” he gasped, “I can‘t move. You’re just so fucking tight, and it just feels too fucking good.”

“I don’t care,” I whined, “finish me now!”

Our bodies started to rock together. Each undulation washed another wave of hot pleasure through me.

“Do you like fucking me?” I moaned, “Do you like fucking your little sister?” Tom was at a loss for words.

“Baby...you’re so...bad.”

“Call me sis again. Teach your sis how to be your little cum slut.” Tom was still firmly lodged in my wetness, but my pussy started to relax and loosen as we moved together, and he started to thrust. The thought of my stepbrother fucking me--actually fucking me, drove me insane with lust. I bucked my hips wildly as his thrusts became longer and longer, and then he started to rage, pummeling his hard cock into my delicate wet sex with all of his fury.

I shrieked with ecstasy every time his thick cock rammed into me, and my little yelps only seemed to drive him onward. He violently grabbed my legs and wrenched them apart, holding my little body in place so he could fuck me harder and harder, taking all the pleasure he could from my body. I lay helpless on the bed as he violated me, enjoying every second. His thrusts grew shorter, even more frenzied.

“Oh shit, sis, I think I’m going to cum!” I realized how close to the edge I was myself. The thought of him exploding inside of me nearly sent me over. He drove one final thrust into me, then let out a tortured grunt as he surrendered to the grip of his climax. I came as I felt his hot wetness firing into me, filling me up more than I could hold. My orgasm blasted through my body, having its way with me just as Tom had.

---------------------------------------------------------

I woke up alone the next day, stiff and sore. The spot where Tom had been lying next to me was still warm. I rolled over into it, breathing in his scent. The dawn was peeking through the window. I figured Tom had snuck away a few minutes before my dad usually got up. What would happen when I moved out and went to college? How would I see Tom? Could he come with me? We only had four weeks left to be with each other.

I got up and dressed. My whole body was sore, but I felt completely satisfied in a way I had never felt before. I walked downstairs, and Tom and dad were sitting around the table, eating breakfast. Tom and I locked eyes, briefly and awkwardly, before I sat down with my orange juice.

“I’m sorry about the band,” Dad said. Tom shrugged it off. He seemed much more relaxed, happier.

“It’s whatever,” he said. I salaciously ran my hand up his leg, under the table. He almost choked on his cereal when I touched his cock. His hand found mine and held it, over his pulsing shaft. It was starting to throb, wanting me again. Soon it was rock hard. I stroked it through his pajamas. My dad looked at his watch.

“Oh crap, I need to run. Tom, can you run upstairs and grab my laptop? I need to go right now.” He jumped up and swung on his coat. Tom’s eyes danced in panic. I laughed and ran for the stairs.

“I’ll get it for you, daddy!”

“Thank you, sweetheart.” I ran back down the stairs with his computer bag and handed it to him. “Give your father a hug." I hugged him. He looked at me and Tom, looking proud and happy. “Here we are: the family's still together. We've made it through a lot." He leaned over to hug Tom, who didn't want to move away from the table. He gave Dad a sort of awkward, sideways hug, making sure not to move his crotch away from under the tablecloth.

I exploded with laughter as soon as Dad left for work. Tom tried to grab me, and I squealed with mock fear, trying to run away from him. I didn't get very far before he cornered and grabbed me. He picked me up and carried me to the couch as I giggled and squirmed, trying to escape. He threw me down on the couch and pinned me to it, ready to violate me again. I knew that it would be even better this time.

“Kneel on the floor,” he commanded firmly, his deep voice suddenly thick with lust. I complied, not sure what he had in mind, but ready to receive his cock in in any way possible.

“What are you going to teach me today, big brother?” I asked, fluttering my eyelashes flirtatiously. I knew the answer when he pulled out his cock and placed it over my lips. I almost gasped when I saw how big it really was. It was thick and veiny, gnarled like an ancient tree. The tip was angry and pulsing, leaking a thin stream of precum. I gave it an exploratory little lick, tasting the dribble. It jerked upwards in a spasm of pleasure when I did so. The idea of pleasuring my stepbrother with my mouth excited me, but I had no idea how. Tom grabbed my hair and pushed my mouth forward onto his shaft, wanting me to suck him. I loved how rough he was with me. I sucked his tip as he moved my head up and down his cock, at least as far as it would go. I choked at first, but I quickly learned how to relax, and soon I was sucking his cock all on my own. I had never really thought about sucking Tom’s cock before, but I kind of liked it, and I loved the fact that he was teaching me something new. I used my hands to jerk the base of his shaft as I blew him, urged on by his husky groans.

“Oh fuck, I'm gonna cum...” he gasped. I withdrew my mouth and stroked his slick rod furiously with my hands, wanting to see his cum explode all over me.

“Oh shit, sis, I’m cumming!” He let forth a series of strangled gasps as his cum spurted out of his cock, firing thick white strings all over my face, neck and shirt.

The rest of the day was amazing. I called in to his work, telling them I was his girlfriend, and that Tom was sick and had lost his voice. The lady on the line sounded extremely concerned, and sincerely hoped that Tom would get better soon. Tom did the same for me, calling my school and telling them he was my father, and that my cold had gotten worse.

Despite being sore from my experience the night before, I took Tom’s cock in every single way possible. He taught me how to ride him like a cowgirl, how to do it doggy style, and other crazy variations I had never thought about. He never bothered putting on a condom, or pulling out, and he came inside me again and again.

I didn’t care, because I wanted his baby. I knew that eventually I would have to finish my education, but it could wait. It was time to enjoy living, and every moment I spent with Tom, especially those moments when he was trying to satisfy my sexual desires, was easier said than done, I was insatiable, and having sex with Tom was more wonderful than I could ever have imagined. For the first time since I was a kid, I felt truly happy and fulfilled.

It was awkward when dad found out about our relationship, but he was, like usual, extremely understanding. If anything, we became a tighter family.

I still had a month before I headed off to college, but I was no longer concerned about my future. Even if I got pregnant, it didn’t matter. And in my heart of hearts, there was nothing I could have wanted more than having Tom’s baby. And I hoped that someday, that day would come true.