Sibling's Night

Story by Spyke007895 on SoFurry

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#1 of Sibling's Night

A brother and sister have a very interesting night, with a new truth revealed. (It's my first story in a LONG time, so please don't be TOO harsh.)


Dear Diary, no, that's stupid. Oi, notebook... nah, that's even worse...

Jason's log, #1

I still remember the night my sister became my girlfriend. Me and my sister, we were close, as close as anything, really. There wasn't a time where we weren't just playing around, enjoying ourselves. We played games together, on the Pawstation, or the D-box, but on this night, we were in for a... well... a shock.

As we were upstairs, pawstation on and playing a fighting game, Immortal Dread, the lights and everything suddenly went dark. Of course, the news warned us of a storm, and mom and dad were still out there somewhere. As we sat there, looking at the black screen, I heard my sister call out to me.

"Ha! The game crashed before it finished, and by rules of that happening, the player with the most HP wins, so I win!" She gloated, as I said, we loved each other, we were best friends, but we never missed a chance to gloat or mess with the other.

"Yea, yea, rub it in why don't ya?" I'd never really paid attention to it, but my sister's body was... well, there's a reason she was the sexiest girl in school, and a major heartbreaker. Every guy wanted her, but none of them got even close. Even some of the straight girls were willing to try her in bed, but still they never got close.

She had her curves, which were mostly pronounced at her chest, her proudly natural E cups, even at the age of 16, with me being 15, but only a few months behind.

Now one thing I should mention, our mother is a lovely woman, a border collie with the biggest heart you could find. Our dad was a German Shephard, so we were a canine family, but with every family, there's a black sheep, I'll get to that later.

After Sierra had finished her gloating, she sat on the bed, OUR bed. "Well, I can only gloat for so long, but I still won!" Her tone stayed as eager and energetic as ever, before it dropped as she lay back. "Now I'm bored." She sighed loudly, and I got another look at her body, and I never realised how bushy her tail was, or how round her butt was, but I digress.

"Well, how about we just ask each other questions, and you have to tell the truth?" I suggested, it wasn't the most entertaining thing, but it was something.

"Sure. I can't think of anything else anyway." My sister groaned, sitting upright. "You came up with the idea, you ask the first question." Way to put the pressure on, sis.

"O-Oh, ok... uh... what's the weirdest dream you've had?" I wanted to start it simple, don't want to go too deep too fast.

"Weirdest, hm? That's a tough one... probably the one I had a few nights ago, I was walking through the park when all of a sudden, the swings moved on their own, so when I walked over, there was a letter for me. When I opened it, there was nothing inside, but the park around me was gone, and I was left floating in space, talking to the gods." Ok, that was definitely not what I expected. "Ok, my turn, why do you always want to hug me when we sleep?"

That was a lot deeper than my question. "I always want to hug you because I like knowing someone's there. I can't sleep on my own, I've tried. I've gone downstairs, but I couldn't sleep until I got back in our bed and held you close." I was sure I was blushing, and it seemed the ante was being pushed already.

We must've been playing for about 2 hours before we ran out of questions, and it was her turn to ask. "Uh... I can't think of anything... ok, this is a weird one, but have you ever seen a girl naked before, aside from when we were kids and mom?"

Well that really came from nowhere. "N-No... I don't know why you'd ask that." But now it was my turn, and one good turn deserves another. "But have you ever seen a guy naked before, aside from me or dad?" She shook her head rapidly.

"Nope! Not one." We sat in silence again, the awkward sting of quiet hanging in the air before she asked another question that got us out of this mess, thank god. "Do you want to watch a movie? We've not seen Lost Island 3; A New Dimension yet."

"That sounds like a good plan!" It was getting late, and we were starting to get cold, so we did what we usually did, under the covers, huddled up, nice and warm with a movie on. We averted our eyes as the other undressed, and before long, there we were, almost naked in bed, arms around each other as the movie started. A cliffhanger ended the last one, so it carried on in typical movie style. It was boring for a few minutes, before something... different happened... the audio changed.

It went from the sweet, haunting music and fx, to the most sexual, lust-filled moans we'd heard, and it was loud, causing Sierra to turn it down rapidly.

"What the fuck was that?!" She asked in shock, the movie paused now. "I-I'm not the only one that heard that, right? That sounded like sex." We knew all about it, c'mon, we're teens, not dweebs!

After a dismissive shrug, the movie resumed, for about 20 minutes, before not only did the audio change, but the video! It went from a sci-fi movie about someone jumping dimensions, to a border collie laying on her back on a bed, showing EVERYTHING, as a lion came into view. The sound was scarce for a minute, before the surprisingly high voice for the lion came through. "Natasha~"

Natasha... Our mom is called Natasha... but it's a common name.

"Tell your husband what's about to happen." Wait, she's married?! And being filmed by her husband, no less? That's... kinda hot. The remote seemed to die at the wrong time, because we couldn't stop it... and I was starting to get hard, so I started rubbing my junk, and I'm sure I saw my sister rubbing her own body.

"I-I'm sorry, Max..." Max... our dad's name... another common one, but slightly creepy how both names match. "But he's gonna fuck me so hard, I'm gonna cum for him and you're gonna have to watch!" Just then, the worst sound came out of the TV, a crying baby. "Ugh, Max, go see what Sierra wants, will you?"

Ok, Mom's name, check. Dad's name, check... sister's name... check... please... don't say what I think you're going to. By this point, I was feeling oddly really horny, so I threw back the cover, and whipped out my dick, which had become rock hard, standing at quite an impressive 12 inches long, 3 inches thick with orange sized balls hanging beneath. My sister was rubbing herself as I threw them back, catching her off guard.

"H-Hey, what're you..." She stopped, her mouth wide open as she stared at me stroking my dick. "H-Holy fuck..." She muttered under her breath, but even if she didn't, I was enjoying myself far too much to care. The porn was getting into it now, the canine I hoped wasn't our mother was now getting fucked by the girly lion's big, fat... footlong... oh boy. He was rough, relentless, and powerful, and the only sounds the TV gave us, were loud moans and even louder slaps. Finally my sister broke the silence of our masturbation again. "Y-You know you how've never seen a girl naked before? W-Well... I'll make you a deal. I'll let you touch anywhere on my body, if you let me stroke your dick."

I couldn't believe my ears! The sexiest girl in school, my sister, wanted to jerk me off, and let me touch her anywhere... "D-Deal." I bluntly stated, taking my hand away, which was soon replaced with her own, as my hand found her large bust, giving it a squeeze. "O-Oh... so soft~" I swooned, it was a new feeling, a warm, soft tit in my hand.

"S-So hard..." My sister murmured, leaning down and taking it into her mouth slowly, as she read my face like a book apparently. "I-I've never done this before, tell me if it's alright?" Even though I'd never experienced this before either, it should be easy to tell if it's good.

She slid down, inch after inch of my dick disappearing into her mouth, and I felt her cough around it, pulling back as she inspected it even closer. "D-Did you know you have barbs on your dick?" She pointed out, this was becoming... scarily close to what I dreaded. After her close inspection, she went back to it, giving me something to work with, her hot, wet snatch. I gave it a lick, I even stuck my tongue in, and she loved it all, I could tell by her moans. But I was getting close. I'd have drawn back if I could, but I was practically forced to shoot my load down her throat, hearing her gulp it down, only to pull off as it was too much, splattering all over her face. "Holy fuck, Jason... you came like a firehose! I-I know this might be wrong, but... would... would you be my first?"

What kind of guy would I be if I fucked my sister?

"Yes."

A fucking horny one.

She straddled me, so that she could look into my eyes, and I could look into hers, and then it happened, the slow insertion. Her pussy was tight, and I feared about her hymen, but again, she must've known as she called out. "D-Don't worry, I've already broken my hymen when I accidentally shoved a dildo up there too rough." With that out of the way, I held her hips, sinking in deeper and deeper, before thrusting into her, our moans overthrowing those of the TV, my head buried between her large tits, which I was more than happy to suckle on, one after the other. "A-Ah, Jason! I-I think I'm gonna cum!" My sister was definitely not quiet about it, so I just rolled over, taking charge as I fucked her, hard and fast, making her squirt, my own orgasm quickly building.

The video skipped ahead, and the canine was now pregnant, quite heavily in fact. "Well, Max, we know that it's a boy, and we know you're not the father. Me and King have decided on a name."

"I-I'm gonna cum!" I felt it flowing, as I slammed in, catching the final word I needed to hear as I came deep inside my own sister.

"Jason."

Scratch that, half-sister.

"H-Holy fuck... d-does that mean...?" She couldn't finish the thought, wether from the bliss of being filled with cum, or she just didn't want to ask it, I don't know, but now I knew why I was the black sheep. My father was somewhere completely different, and my step-dad was on his honeymoon with my mom. My sister -HALF-SISTER- spoke up again, hellbent on changing the subject, even if it was only minorly. "I-I never expected sex to feel like this... d-do you... do you want to be my boyfriend?"

What kind of guy would I be to have my half-sister as my girlfriend?

"...Yes."

A fucking lucky one.

The End... for now.