Dani and I stayed cuddled together, spooning on the bed, my cock still buried deeply in her ass. I had tried to pull out at first, but she reached back and stopped me, gripping my hip and pulling me back against her, my cock just hard enough to push back in all the way. We watched TV for a while like that, with my balls pressed against her perfect little cheeks, my shaft deep inside her relaxed, tight little butthole. Laying there like that, with my arms wrapped around her, crossed in front of chest, cupping her little breasts, gently caressing them, her fingers toying with the backs of my hands felt incredible. Like we were a couple, almost.
It still felt like she was my sister, but my lover as well. It's hard to explain those feelings when they're experienced together. It's the closeness of family, the knowledge that no matter what, she would always be my sister, always be someone I loved and cared for deeply despite our once-constant fighting coupled with a deep desire, a yearning for the physical and romantic closeness of a girlfriend and being given it against all rules and odds.
I knew that things between us would be different, probably for the rest of our lives. I didn't know if we would continue our new relationship forever, or even beyond the limits of this trip, but I knew that we would be closer, more loving, from then on. If nothing else, we would always have the memory of our passionate, unbridled sex, and I felt very strongly that even if things fell apart we would be able to continue on as, at least, friendly siblings.
I also knew that I wanted more than that. I could accept a simply friendly relationship with my sister, and knew it would be fulfilling and wonderful to have her in my life that way. But I wanted more. The realization that I never wanted to give up what had started just a few days before came suddenly, and was a fantastically warm, joyous thought.
Falling in love with my sister wasn't something I had ever planned, or really thought about. We had been at each other's throats most of our lives. Up until we started fooling around, we had barely spoken to each other with the exception of the times we just yelled insults back and forth. I knew then, curled up naked against her, inside her, with the top of her head tucked under my chin, our hands rubbing softly, our legs intertwined, that I wanted to keep doing this, wanted to have my sister not just as my friend and sibling but as a woman, until I died.
Reality was something that I felt we could bend to our desires. Practically, we would have to make sacrifices. I understood that our parents would never accept it, and that neither of us would want to cut them out of our lives. We would have to figure out how to maintain appearances, most likely. Relationships with other people would have to happen. A girlfriend for me, a boyfriend for her to start. I wondered if we could possibly get lucky enough to ever not have to lie to our hypothetical future partners. I wondered if I could ever trust someone enough to tell them that I was in love with my sister and not have them tell everyone they knew, let alone stick around.
I wondered if I could stomach the idea of Dani with someone else.
"Sharing you is going to be so hard." Dani's words broke into my thoughts and pulled me out of the silent planning. I realized that her thoughts had mirrored my own.
"I was just thinking that. I don't want to ever stop doing this, and I know Mom and Dad would flip."
"No kidding! Can you imagine? 'Mom, Dad, I love you guys. Also, the best orgasm I've ever had was from Greg cumming in my pussy. Pass the potatoes.'" I laughed out loud, Dani barely making it through her sentence before she started giggling. Her laughter caused her ass to squeeze my cock in time with her sweet, high mirth.
"First off, they're gonna think you're lying if you call me 'Greg,'" I said. "That's the first time I've heard you use my actual name in like ten years." Dani turned her head on the pillow and smacked my hip lightly, grinning.
She laughed words against my lips. "Fuck you!"
"You are," I fired back, kissing her smiling lips.
My sexy sister moaned against my mouth, her lips parting, her tongue flicking against my teeth. "And I really couldn't be happier about it," she said. I smiled and darted my tongue out, tickling it against hers.
"Not to sound stupid," I whispered, "But I'm pretty fucking excited about it myself." Dani moaned as I flexed my cock.
"I can tell." The words came out as barely a breath against my face.
Dani rolled away suddenly, my now-throbbing shaft pulling quickly out of her ass. I felt cool air on my cock for the first time in an hour and immediately missed being inside her. My sister rolled quickly and pushed on my shoulder, shoving me onto my back and settling between my legs, her tongue instantly dragging from my balls to the purplish head of my painfully hard cock before she plunged down, burying my entire cock in her throat before sealing her lips around my base and slowly pulling back. Her nimble little tongue bathed the underside of my shaft, her wet lips dragging along my entire length. When her lips reached the head, I felt her tongue swirl around it, completely bathing it quickly before she sank back down to the base and repeated the process. This time, she pulled all the way off, my glistening cock popping audibly out of her mouth as she locked eyes with me and crawled up my body, her tiny frame moving with a sensuality I'd never seen on another woman.
Every inch of my sister screamed lust. She wanted me, and I wanted her, more than I'd ever wanted anything. Her movements and her eyes told me that she knew what she was doing to me, and told me that I did the same thing to her. Finally, my sister straddled my hips, her dripping pussy held just an inch above the tip of my cock as it bobbed and pulsed, waiting. With her lips just out of reach, our noses almost touching, she looked into my eyes and asked one simple question that drove my hormones crazy.
"Will you kiss me? Will you kiss me after I've sucked my ass off my brother's big hard cock?"
My response was simple. I slid my hand behind her head and pulled her down, plunging my tongue into her mouth, exploring the inside of her mouth and re-learning the texture of her tongue on mine. Dani groaned into the kiss and reached between us, guiding gently with her small, soft hand.
She sank down on me, her cunt embracing me wetly, tightly, lovingly. She took her time, slowly lowering herself inch-by-inch, savoring the feeling of me filling her completely. When I bottomed out and my hips pressed against her ass, her clit swollen and mashed against my pubic hair, she sighed and began to rock ever so slowly. She moved forward and back, grinding against me with my cock buried inside her, reaching back with one little hand and lightly running her fingernails across my balls.
We worked against each other, in no hurry. I helped my sister build her orgasm, flexing my hips, pushing up into her as she gently rocked above me. I could feel the tip of my prick against her cervix, brushing it, bumping against it, trying to press into it. Dani moaned and whimpered softly as we fucked, her hands alternating between toying gently with my balls and running across my face and chest. My own hands explored my sister's body leisurely, fingers trailing from her cheek to her lips, down her neck, brushing her nipples, pinching them, caressing the soft warmth of her belly, gripping her hips as I took in every inch of her. Nothing had ever been more beautiful than my sister, her eyes closed, her lips parted, long black hair swaying back and forth in front of her perky, hard little nipples as she rode my cock, her wetness seeping out and painting me from pelvis to balls as she spread herself around with her slow, incredibly sexy motion.
"Promise me something," she whispered suddenly.
"Anything," I responded immediately, flexing my cock as I spoke. She gasped and planted one hand in the middle of my chest, her rocking suddenly faster, more urgent as an orgasm approached.
"Fuck me on my wedding day?" Her eyes opened and bored into mine. "Promise me that I'll get married with my brother's cum in my pussy, running out of me when I say 'I do.'"
Her hips were jerking now, rapid, hard little thrusts against my cock, her pussy starting to quiver around me.
"I promise," I gasped.
"Tell me."
"I promise that when you walk down the aisle, you'll be smiling because your brother just fucked you, just came in your pussy and made you scream his name in a church, just pulled your white dress up and slammed his cock into you, made you cum against the door you walked through to get married. I promise, Dani."
My sister screamed as she came, her pussy clamping down on me and rippling along my length, cumming hard through every word that spilled out of my mouth. It just kept going, tearing through her, making her twitch on top of me, collapsing against my chest as her cunt crippled her, her body completely surrendered to the implosion centered on my cock. I wrapped my hands under her knees and sat up, rolling quickly, depositing our heads on the other end of the bed as we switched roles and I settled on top of her. She never stopped cumming as I thrust into her, fucking her hard through her orgasm, determined to make this last.
"I promise that I'll fuck you on my wedding day, too. I promise that when I kiss my wife for the first time, my cock will still be wet with your juices and my cum will be warm inside you. I promise that she'll slide a ring onto a finger that still smells like your cunt," I blurted words through gritting teeth, my sister cumming harder and harder as I spoke and pounded into her, straining to keep moving through her vice-like pussy.
"You- Ungh! Fuck-" Words and grunts came from her, a mash of swearing and gasping that turned me on even more, shoving me over the edge, my cum rising, bursting from my cock as I slammed into her one last time as hard as I could. I came longer than I ever had in my life, cum spurting from me and jetting against my sister's jumping, pulsating cervix.
I fell against her, her arms somehow finding the strength to wrap around me though her whole body was shaking. I could feel the muscles of her legs and arms vibrating as they clung to me, my own legs shaking, my chest muscles jumping as I struggled not to crush her. Dani's breath came in short gasps, almost yelps of air, her chest heaving under mine as her pussy spasmed little aftershocks of her orgasm around my torturously sensitive cock.
"I love you," she gasped, her eyes just barely focusing on mine.
