Holidays.  Home from college.  Parents out.  Just the two of us.  Like when we were kids.
It was kinda late.  I was kinda tired.  She'd gone to take a piss.  Left me on the couch.  Movie on, shoes off, hooves out.  
The film wasn't good.  Flashy.  Stupid.  Something to fill the silence, and easy to ignore when there was anything else to talk about.
I heard the flush, then the door.  Her steps came up behind me, soft on the carpet.  A hoof stuck over the back of the couch, then her hands on it, then rest of her vaulted after.  Almost kicked me.  She came down hard on the cushion.  
"Fuck!  I can still do it!"  
I was staring at where my sis'd landed.  She wasn't wearing pants.  Or panties.  Or anything, from the waist down.  Her bare muff pressed against the seat, fat and wet.  And out from it winked her clit.  
Whatever part of me should have fucked off, turned away, that wasn't what had my reins.  I just looked.  And looked.  And looked more.  
"What, you like the view?"
That brought my eyes up, though they stalled along the way.  Her breasts were out, too, just above her thighs.  Bigger than I thought they'd be.  Her shirt draped at their tops, blue and not hiding jack.  From there it was a straight run to her face, her sloppy grin, that slight blush beneath the hair of her cheeks, and her tense, blue stare.  
She'd always do stuff to make it a thing.  Push me, prod me, a little more, a little more.  Never knew where to stop, so it always had to be me who stopped it.  But not like this.  Not naked.  Not with everything hanging.  "You should-"  But that's where my last thought ended.  Bridge out.  Head empty.  
Her smell.  Her smell!  She reeked of heat!  I'd caught it before, on others, on her.  But that'd only ever been faint through clothes, a thin whiff on the wind.  This?  Not hidden or covered.  She bared it to me, strong and fresh and wanting.  
"You not on the pill?"  The only question that came.
"Of course I am."  She gave a laugh.  Just the one.  
Don't look.  Don't look.  I didn't stop looking.  "But you smell so-"  
She cut me off.  "It doesn't do everything, alright?"
"I wouldn't know."  And even if I'd been told somewhere, I couldn't remember now.  "Not like I use them."  
She gave a grin.  Knowing.  Her hand went down, and my eyes followed.  She reached that long, dark, upside-down teardrop between her legs, and poked at the lip.  It quivered, spread, and her clit winked out at me.  
My pants were getting full, getting tight.  I took another breath, and the scent was even sweeter, even stronger.  "What do they do, then?"
She slid her fingers over the lip to cross that wet puckered slit.  It winked again, kissing her fingertips.  "Makes things easier.  Easier to ignore.  Easier to please.  Easier to... well, not get knocked up."
"Not making your smell easy to ignore."  My own want pressed up my belly, out of my boxers, under my belt.  
She laughed again, this one fuller, looser, less... nervous?  "That's the one thing it doesn't do so much.  They got pads for that."  Her fingers kept stroking.  
I kept watching.  Couldn't see anything pad-ish between her legs.  Must've left that with the pants and panties.  
Up and down, up and down, and then in.  Held them there.  Worked them around.  And when she brought them back out, they were soaked.  Her clit peeked again.  It was just as soaked, and drooling too.  
I wanted to touch it.  I was scared to move.  "And the, uh... you're kinda getting the sofa wet?"
She looked down.  "Okay, two things for pads."  Another wink, another dribble.
I was staring.  "You're gonna make a mess."  I shouldn't be staring.  "Coulda done that on the toilet?"  I couldn't not stare.  
"I dunno."  Her voice cracked, nervous again.  "Thought you'd worry if I took too long."  
"So you came out here to do it right in front of me?"  
She closed her legs, brought her hand back up.  "Made sense at the time."  Then she licked her fingers.  
That was enough.  That was too much.  I looked away, looked down.  My shaft beat hard, flaring out.  The shirt still covered it up,  but she couldn't not see the swell.  Felt so good.  
"Hey," she whispered across, "If you needa jack it off, bathroom's free."
"What the fuck?"  I almost jumped.  "I'm not gonna-!"
"Well I am."  She spread her legs, wider than before, and stuck her fingers back in.  "Only fair you get to."  
I could hear the rubbing, feel it through the cushions.  She slipped down and forward, hanging her muff out to air.  Her clit peeked out again, over those fingers buried in her cunt.  She humped up against them, in and out, in and out.  And every time, a little more of her slick dribbled out with.  She smelled so sweet.  
"At least take off your pants."
That made me jump.  "Fuck!  What!?  Why?"
She jerked her head toward the event-tent I was pitching.  "Can't be comfortable."
Damned if she wasn't right on that.  I was packed in there, and it was starting to hurt.  But she had me in a corner.  I could go, jack off, and she'd have her score.  Or I could stay and bear it, and she'd keep poking me.  So, fuck it.  If she was gonna push it this far?  I wasn't taking the hit to slam on the brakes.  
So I undid my belt.  
"Oh my gods!"  She made something between a gasp and a laugh.  "You're actually doing it."
I kept going.  Pants, zipper, boxers.  Pulled them down to tuck under my balls.  Shirt up, cock out.  Stiff and flared, with a heavy sack below.  I turned to be sure she was seeing it.
"Wow," she mumbled.  "Didn't think you'd... uh...  Wow."  
It was my turn to laugh.  "You're fingerin' yourself next to me, but what I'm packing's a surprise?"
"Guess not, really."  All of her attention was on me, on my shaft, tracing up and down its length.  "Fuck," her voice went quieter.  She wasn't even working her cunt anymore.  It winked again at me.  Then again.  "You smell really good."
It slipped out, "Yeah, well, so do you."  That was supposed to be a jab, an accusation.  Didn't feel like one.  
Her eyes lingered on my tip, my flare.  Then she met my gaze.  "You think so?"  
And I did.  I mean, not that way.  She was in heat, of course she smelled good.  It was only natural.  Only natural.  To be hard from her scent.  To look down again at her bared muff.  To want it.  
Too late I realized I had my hand around my shaft.  Fat in my palm.  Wasn't sure if I was starting to stroke it or tuck it back away.  But to her, it must've looked like I was showing it off.  'You like this?'  Or something.  And the more she stared at it, the more she looked like she did want it.  
I let go, let it bob.  "You're making a puddle.  They're gonna see, when they get back."  Another whiff of her shot down my spine.  "Or just smell it."
She looked down to the growing stain.  "Eh."  Then right back to me, back to my cock.  A grin cracked her muzzle.  "Got an idea for that."
She pushed up, stood, stepped over to straddle me.  Her tail flagged, her cheeks spread.
I stared right into her asshole.  It puckered and kissed the air.  "The fuck are you-?"
She bent and reached back between her legs, gripped the end of my shaft.  The flare slid across that soft, slick puff of her crotch.  It made me shudder, head to toe.  Thought she was going to press it to her cunt and slide right down on it.  Wanted her to do that, so fuckin' bad.  
But she pulled it farther forward, all the way to her front.  Her thighs wrapped my cock; she slid down it like a pole.  Her ass slapped my belly and her back flopped down across my chest.  "There, see?" she laughed to the ceiling, "Problem solved."
Solved.  Solved!  She had her bare cunt pressed against the base of my shaft, sopping her horny stink all over my crotch, my belly, my...  "My shirt!  My pants!  The fuck?"
"Oh come on, you're easier to wash than the cushion, yeah?"
Didn't help that she was right.  Helped even less when I felt her wink, that hot coal of a clit poking my log-of-a-cock.  It caught.  It burned!  My heart banged in my chest, between my hips, beneath my balls, up my length, all the way to my tip.  I flared, wide as it could go - and right in her hands.
"Like that?"  She rocked her hips side to side, rubbing her clit on me.  "That's okay?"  
I made a noise, almost a laugh.   It wasn't okay.  It was very much not okay.  And I wanted so badly to make it worse.  "Yeah."  
"You're real warm," she cooed, gently rubbing my length.  "Feels good."
I didn't say anything to that.  Didn't need to.  Was already as hard as I could get.  
She peered back at me over her shoulder, "You got a condom?"
Oh.  Fuck.  
What could I say to that?  No?  She'd have to drop it, then.  Unless she didn't, and started talking about going bare...  Then I'd have to fess up to the lie.  Or actually go in bare.  Or how 'bout not fuck her?  Why'd I think of that last?  'Cause I wanted to fuck her.  
Fuck, fuck, fuck.  Fine!  If she was gonna push it, then she'd have to push it.  "Nope.  Not one."
"Oh."  She went quiet.  But the rest of her didn't stop telling.   I felt her winking again and again at my base.  I felt her fingertips traceing the spout of my flare.  I felt her belly rising and falling against my length.  "Shame," she hissed, "It'd be great if you did."
That was almost a relief.  Almost.  I was already wound up and waiting for her to press more.  Wanting her to.  Her!  My sister!  With her scent right there, her cunt right there, I couldn't not think about stuffing it in, rutting her good.  And now there wasn't even a condom in those fantasies.  We didn't need it.  The risk made it better.  "We'd have to pull out."  I didn't mean to say that.  I didn't mean to say it so loud.
She'd gone completely still.  Her hands, both, gripped me just below my flare.  Mine lay at her waist, an inch from taking her breasts.  
There was just the sound of the movie.  Somehow that was worse than silence.  I had to break it.  "When you climbed on me, I thought you were gonna... y'know, climb on me, and-"  
"I meant, like..." she swallowed, "so you don't shoot it on the carpet?"  Another warm prod, her nub against my cock.  
"Oh."  I didn't mean to sound so disappointed.  
But then she pushed off my lap, dragged her muff slowly up my length all the way to my tip.  There she stopped, her drooling pussy laid flat across my flare.  "Like this?"  Her voice was a whisper.  Another wink, this one right against my spout.  She flagged her tail, bared it all to me.  Her asshole clenched and puffed, clenched and puffed.
I put my hands to her cheeks and my thumbs to her lips; I pulled her open, just a little.  She shuddered, nickered.  Her knees bent and she sank down on my flare.  It squashed against her, didn't quite go in.  She pushed harder.  I spread her more, wider.  Something gave.  My tip slipped through, popped in.  She shuddered, head to toe.  
A gasp caught in my throat.  "We shouldn't do this," I panted out.  "We shouldn't be doing this."
She bore down, swallowed another inch of me.  "We are."  And then another.  
Hard to think about anything.  All I could feel was my flare working its way up through her tunnel.  "Gonna make a mess of the sofa."  That wouldn't change her mind.  It didn't even dent mine.
"Fuck the sofa."  She sank lower, taking more and more of me in.  
Almost hilted.  I had to say it, couldn't keep it in.  "I lied."  Another inch of me went in.  "I got condoms upstairs."  
That stopped her.  But only for one breath.  Then she rocked her hips and stirred me around in her.  I felt her fingers on the underside of my cock, right where it stuffed into her.  Back and forth, back and forth.  She was working herself.  And me.
Her tail flicked me in the face.  "You wanna fuck your sis bare?"  She laughed, "Bare!"   
Part of me did.  All of me did.  But I wasn't gonna take the blame alone.  Not when she was riding me like this.  "Don't see you pulling off."  Hands on her hips, held her down as I thrust up.  "Desperate enough for my dick that you'd take me raw."  
“But you coulda not, and still went in.”  Her asscheeks bounced on my lap.  She was all the way to the hilt.  "You wanna shoot in me?"  Her insides gripped my flare, beating hard against me as I beat back.  "Wanna cum in your sis?"
I thrust again.  "Yeah."  Then again.  Could feel it starting, feel it coming, getting close to getting close.  And I just kept going.    
She rubbed herself faster, more frantic.  Her legs shook.  Voice, too.  "I lied, too."
I knew, I knew, I fucking knew!  But I still asked, "About?"
"The pill.  Nothin' in the way."  
It took a moment to sink in.  And then, "Oh fuck.  Oh fuck!"  I didn't know why, but I gripped her waist, her breasts, humped, rutted, fast as I could.  It was too good.  Breasts in my palms, tits between my fingers.  Balls gone tight, slapping her muff.  Flare kissing her pucker.  Nothin’ in the way.
She knew what was coming, she had to know.  Her legs shook, her back arched, her hand squeezed her clit to me.  I could feel her clamping, I could feel her shuddering.  She wasn't pulling off.  I wasn't pulling out.  She was cumming.  I was cumming.   
One last thrust, hilted hard as I could.  It forced something out of her, a sound I'd never heard.  Strangled.  Joyous.  And then it came up all the way from my base to my flare, my tip.  It itched so good, I didn't want it to stop.  But it wouldn't stay in, I couldn't hold it.  That pump, that shot inside her, a burst of my heat to meet hers.  Then another, and another, and another, more than I thought I was able.  And there was nothing to keep it from taking.
When I was done, when she was too, we lay back together, her on me and me in her.  The movie was still going.  I still had my hands on her breasts.  
She brought her arm up, brushed my mane, tickled my ears.  They felt hot.  My cheeks, too.  
"Made a mess," she cooed.  
I could feel as much as see it.  Lots of her slick.  Some of my load.  And sweat from us both.  My pants were a lost cause.  Both our tops, too.  I mumbled out, "Should clean it up."  At least we hadn't gotten too much on the sofa.  
She pushed up slowly, pulled herself off.  My flare prickled the whole way out.  Sensitive as fuck.  So was she, from the little noises she made.  
It came loose with a pop, coated and glistening with my spunk.  More seeped out after, from me, from her.  A creamy dribble hung from her spattered teardrop.  
She gave it a rub, smeared it on her fingertips.  "C'mon," she told me, "before it soaks through to the cushions."  Her legs wobbled.  Her ass puckered.  Another gob of white squished out.  She reached up, stretched, peeled her shirt off over her arms.  And then she stuffed it between her legs, to sop up what she was leaking.  
So I stood and stripped, top and pants and boxers, and gave my flare a wipe.  It hung there, between us, leaking out more.  She'd turned to watch me.  I watched back, the whole of her, bare from hooves to mound to belly, chest, and muzzle.  Amber speckled with white.  Shining.  
She crossed her arms.  "Been a while since you've seen me naked?"  
"Yeah.  You look good."
"Fuck me, blow a load in me, and then ya call me pretty?"  She gave a snort and tossed her top over her shoulder.  "Top tier brother."  Her tail flicked out; she clopped past me, out of the room and down the hall.  I wadded up my own things and followed her to the washing room.  
When I caught up, she was leaned over to set the cycle.  Her cheeks spread, her tail flagged.  Didn't know if she was presenting, or just standing funny.  
She didn't look up, just, "C'mon, put it in."  
I stared at her asshole, at her cunt hanging out beneath.  Another wad of my spunk peeked out from that crack.  And she still reeked of heat.  Heat!  If she really wasn't on the pill, I'd probably just knocked her up.  Couldn't even think about what the fuck that meant. 
She looked back, saw me staring, and stuck out a hand.  "Your clothes, dipshit."  
Yeah, those.  I gave them over.  
And then everything was in: set and soaped and running.  But she didn't turn, didn't leave.  Just leaned there on the machine.  Her tail danced, left, right, left.  My heart beat, my cock bobbed.  Dunno when it'd stopped going limp, but I was half-hard again.
"You lied to me," she growled, low.  
"What?"  I didn't get what she meant, not fast enough.  
"You said you didn't have a condom.  You said you'd pull out."  
Didn't know what to say, so I just pushed back, "And you said you were on the pill."  Were we arguing?  "You climbed on me, rode me!"  It felt wrong.  
She didn't say anything to that.  She didn't say anything for a while.  Only her tail kept moving.  And her asshole.  Had I won?  Didn't feel like winning.  
And then she turned, and didn't look so mad as she sounded.  "It was good, wasn't it?"  
It was.  It was.  "Oh gods, yes."  
She pushed up and off the machine and turned to me.  Her hand went down to her muff, gave it a long, deep rub.  It winked again over her fingers, and more of my cream seeped out.  "I'm still fuckin' horny."  Her eyes held to mine.  
I'd gone all the way stiff and was starting to flare again.  "Should I get a condom?"  
The laugh popped out of her.  "Little late for that, yea?"  She took a step, then another, and brought her belly right to my shaft, gave herself - and me - a rub.  
Couldn't imagine my seed wasn't taking in her right then.  Shoulda been terrifying, but it only made me harder.  "Guess so."  I put my hand to hers, to my tip, and we pushed it down to her muff.  Her clit peeked again, warm and wet against my sloppy flare.  
She put her muzzle to mine.  Snout to snout.  Her breath came heavy and hot.  
I ran my other hand over her hip, around to her behind, and took her by the tail.  "Want me to pull out this time?"
Her lips spread across mine.  "Same answer."  
She rocked her hips to me.  I gripped her rump, humped her, drove my flare up into her bared heat.  She gasped, her mouth hung open.  I pressed in there, too, wrapped mine around hers.  She took me, welcomed me, above as below.  
We went slow.  Still sensitive, still half-spent, her and especially me.  But the longer we went, the easier it got.  She braced herself back against the washer, and I plugged her again and again with each lip-locked breath we shared.  
And then the wash cycle started.  
She squirmed and squealed, stifled by our embrace.  I felt it, too, that rhythmic rocking so much faster than ours.  But she didn't move away, and I wasn't going to move her.  The machine rammed her against me, twice and more what we'd been doing.  Couldn't help but match its pace.  Faster, faster.  It almost hurt.  It was almost too much.  
But it was also too good.  Brought me to the edge, held me there, not quite enough to make me blow, but feeling like it was.  Her, too, I think.  More gasps.  More moans.  
She broke the kiss, gave a whisper, "C'mon, bro.  Shoot it in me."  
That got me closer.  I kept rutting, sprinting for a finish just out of reach.  "I will, I will... just getting... almost..."  It was hard to talk, going that fast.
"I'm in heat."  Her voice came louder, uneven, almost a squeal.  "Shoot it in me!"
What she was doing, it was working.  I was boiling over.  "I'm gonna, I'm gonna...!"  
"Knock me up!  Get me pregnant!"
Fuck, fuck, "Fuck!"  I grabbed her ass, both hands, and slammed into her all the way to my balls.  Didn't try to hold it, didn't even dare.  It came up and I blew it all into her, thick and warm right into her heat.  
She grabbed my neck, pulled me back into the kiss we'd dropped.  I pressed back, every inch of tongue, every inch of cock.  She was too full.  Our mess dribbled down my balls.  The washer shook it off all over our hooves.
She parted from my lips and huffed out against my muzzle, "Should probably clean ourselves up."
I nodded.  
It was even more sensitive, pulling out that second time.  Itched fierce, tickled fiercer- a mangled nicker slipped out.  She just giggled the whole way.  
More of my mess drooled out of her, off of me.  She stuck a hand between her legs to keep more of it off the floor.  I did the same with my flare.  We waddled for the shower, quick.  I had the easier time of it and got there first.  
She followed me in and pushed by for the toilet, "Gotta pee."  
I grinned at her.  "Again?"  Her pants and panties were still there on the floor.  Guess pads did work - they weren't making the room reek nearly as much as she did.  
Turned on the shower, but had to wait for it to warm up.  So I put my back to the wall across from her while she pissed.  "Me next."  Funny, just a few hours earlier it'd been awkward as fuck.  Now, not even a little.  
She finished and flushed and stepped into the shower, and I took my turn at the pot.  Wouldnt've minded if she'd watched.  Was only fair.  
"Hop in when you're done," she called over the water's hiss.  "Nice and hot."  
That shoulda been even more awkward.  But when I squeezed into the stall behind her, it only felt right.  She wasn't shampooed up, just stood in the spray, back to me, rubbing herself.  Down her front.  Between her legs.  Wouldn't do much about all that spunk still inside.  
I put my arms around her, my hands to hers - one on her breast, the other stuck in her cream-filled pouch.  "You still smell good," I murmured into her ear, "Even wet."  My shaft hung against her asscheeks, beating its way up between.  
She snorted, spattered water on the wall.   "You gonna keep doing this?"
"If you want me to."  I put my chin to her neck and slid it down her shoulder.  
She rubbed back against me, muzzle to muzzle, cheek to cheek.  "You've really got a thing for tryna get your sis pregnant."  
"Only tryin'?"  
Her ear flicked against mine.  
My shaft climbed her thighs.  "How long've you been wanting this?"
"Dunno," she hissed like the water.  "You?"
I didn't know either, couldn't even begin to say.  Felt like it'd always been there, buried - or not even buried?  I'd just not seen.  Until now.  Maybe it'd been there forever.  
She put her hand to my shaft, where it stuck out from between her legs.  "Guess we're the same, then."  Her fingers ran down the rest of its length to the start of my flare.  She took it, raised it up.  "One more, before we have to be clean?"
My tip was so tender, so sore.  But her touch, it was still more than enough.  I took her by both hips, leaned her forward.  She reached down, guided me in.  
It was tight.  Us, packed together in the shower.  Me, packed into her.  We started slow, but didn't stay that way long - two loads made her slick inside.  It squished around my cock when I bottomed out in her, made it easy to go faster, rougher, even though my flare was on fire.  She was moaning.  I was gonna put even more in her.  
"Gettin' kinda close," I murmured over her shoulder, and wrapped my hands to her breasts.
"Don't tell me when you're gonna shoot."
"Why?"  
She huffed back, "Feels better when it's a surprise."
That was fucked up, but I guess I liked fucked-up.  And couldn't say I wasn't any better.  So I went on rutting her, pounding her, until I was flaring full and proud at the bottom of her breeding hole.  And when I squeezed her, hilted her - flared at her bottom and cumming - it was like I was knocking her up all over again.  
And when she felt it pulse in me, in her, she let out the lewdest whinny, like there was nobody to hear us for miles.  I hilted again, again, crammed my flare against her grasping insides.  It burst out like her cry, warm enough to be a cry its own.  I filled her up, as much as I could still force into her, as much as I still had left.  And when it was over, when I pulled out - slowly, so very slowly - and knelt in the downpour, she came down too and sat against me.  Her breathing, her beating, was soft and gentle against my lap.  She was spent.  I was, too.  Nothing more in me.  All of it in her.  And that was enough.
We stayed like that until the hot water ran out.  That was probably plenty long, anyways.  I helped her up and out, she toweled me down, and I gave her a good, thorough blow-dry.  We looked like nothing had happened.  Well, almost.  She still had a seam of cream seeping out.  But, hey, another thing pads were for.  
Moved our clothes to the dryer, then changed from our luggage.  Probably wasn't a good idea to hang around naked for too long, not in our parents' house.  
The movie was done, so I put on some horror.  She nestled up next to me, almost back on my lap.  Could still smell the heat on her, but it wasn't so bad.  She didn't seem so horny.  I wasn't, either.  At least for a while.  
Wondered what we'd do after the holidays.  Maybe long-distance... whatever this was?  Maybe try for transfer to the same Uni in a few months.  Maybe something else.  Probably shoulda worried about all that stuff before we'd gone and fucked, but...  Ah well.  It was hard to care too much just then.  And we still had another week before we went back.