 
 
 
Katie clutched at her brother tightly in bed, shaking her head as they cuddled naked, face to face. “Nope, nope, nope you ain’t going anywhere.”

He wriggled, trying in vain to move again.  “But Katie, I’ve really gotta go!  Stop messing around!”

“Mmm I know that silly.  And you’re still not going anywhere.”

Tommy pushed at her, wincing as the movement exacerbated his condition.  He hissed, “Katie I’ll wet the bed!”

She nodded and kissed his nose.  “I know.  That’s why you’ve got plastic sheets, right?”

He blushed at that, looking away.  “I didn’t mean that; You know I don’t wet the bed any more.  Except maybe right now!”

She gave him a withering look.  “I know.  I want you to.  We can do laundry later; it’ll just be our secret.”  She pulled him more tightly against her, blushing a little herself.

“B-but you mean here?  Right here?  In bed?  Katie you’re crazy.”  He wiggled and gave a little groan at the pressure on his bladder.

Katie nodded emphatically.  “Well.  Not exactly here.  I mean you gotta put it somewhere useful.  Help a girl out, you know?”  She watched as his eyes widened, then smiled gleefully as she felt his first stiffenings against her.  Katie pulled him tighter.

The boy groaned at the bittersweet sensation, the pressure within growing nearly unbearable, while the pressure between his legs grew ever firmer.  “Katie I don’t know...,” he grumbled between gritted teeth.  It seemed a really long time since that shower they had shared.

“Sure you do...”  She pressed her paws against the small of his back, licking her lips at the sound of him grunting and straining.  His erection was unmistakable now, trapped between them but not going anywhere fast.  “How much longer do you think you can hold it?”  Katie flexed her toes, feeling herself start to get slippery inside.

He wriggled and despite himself, even pushed back against her a little.  “Mmmf...  I can’t hold it much longer...  Need to go really bad.”  Tommy whimpered, his erection pulsing against her thigh.

“Hold that thought!”  She kissed him on the lips and then pushed him over onto his back.  Before he could say anything, Katie clambered on top and pushed her paw down on his stomach to steady herself.  Tommy cried out and nearly lost it there and then, but she put one delicate finger to his lips.  “Shhh...”  The girl straddled her brother, facing him, gently lining up their hips as she felt between their bodies.  Her paw on his willy elicited a soft hiss, and then a groan as she guided it into her warm vagina.  Settling down, down, their hips met as he hilted inside her warm snug space, twitching and straining.

The pressure was worse than ever.  He started to get a little dizzy at the sheer exquisite agony of it, but somehow couldn’t let go, couldn’t release.  Tommy’s breath started to come in short gasps.  Katie leaned forwards and started rubbing her paws down his chest, down, down, down his belly.  He writhed and wriggled and pulsed inside her, starting to see stars, starting to see spots.  She dipped her head lower and kissed him, fondling his ears, stroking his muzzle, smiling.  Her muzzle brushed an ear.

Katie whispered, “How long now, Tommy?”  The girl reached between them, kneading her paws into his tummy, stealing another long, slow kiss.

Tommy started to thrash, legs and hips convulsing at the sheer effort, words coming out in a jumble. “No...  Can’t!  I’m gonna.”  He went suddenly quiet, trembling, and then went quite still.  Tommy clutched at his sister.

Now it was her turn to cry out.  “Oh God.  Oh God Tommy I can feel it.  Oh G...”  She pressed a paw against their connection, just in time to feel her brother’s pee leaking back out of her in an ever-increasing flood.  He’d wet himself.  He’d properly wet himself, inside her.  Katie lost it, her stomach doing sudden flip-flops as orgasm wrenched through her.  Helpless, she squeezed again and again on her brother while pleasure blasted through her body in waves, but it didn’t matter.  There was no way he could stop now.

The cub groaned again and again as he emptied his bladder into his sister, whispering under his breath, "Oh God. Oh God.  Oh God."  He was making her impossibly warm and wet in all the right places.  The wetness leaked freely out of her, soaking his crotch and her legs, spilling over his crotch and down his sides.  Already the bed was wet under them, a puddle forming.  He grunted as she finished her relentless squeezing, and pushed up even deeper inside.  It wasn’t quite enough, so he pulled down on her thighs, burying his squirting tip deeper still.  For a brief moment they had a seal, the pressure rose within her, and then it all leaked out again with a wet splash.

Katie struggled to catch her breath as Tommy continued peeing inside her.  Every last inch of her most sensitive flesh was just being relentlessly hosed down by him, hosed in fragrant wet heat.  Regrettably, eventually, his flow began to lessen.  A gentle stream, a warm trickle, until, nothing but his warmth up inside her and the puddle she could feel beneath her knees on the bed.  The pair grew still, nothing but the sound of their mutual panting to break the moment.  A shift in their position and a fresh torrent leaked out over them.  Tommy gasped, gripped her sides, and began to thrust up into her.

One shaking movement of his hips after another, the boy moved his willy in and out of his sister, piss-slicked and quivering.  She moved her wet paws to his sides and dipped her muzzle down to kiss him, tail raising as she moved back against his burgeoning thrusts.  Both their nostrils flared at the unmistakable odour of their act, cheeks blushing as they kissed.  The twins moved as one, tails intertwining, one rising as the other fell, the wet sounds of their illicit congress punctuating the scene.

Katie moved a paw behind to gently cup and squeeze her brother’s balls, finding them soaking wet and taut.  He groaned beneath her, his thrusts becoming erratic and shuddering.  She broke the kiss and rose up to press down on him, squirming at the feel of pee still lubricating their forbidden act.  Those thrusts became shorter and more erratic until at last she felt him start to tremble.  She bit her lip at the feel of him swelling noticeably within her, and then he grunted and started to pulse.  Hot semen splashed up inside her suddenly, slippery and wet.  As her brother clenched his teeth and groaned, she felt every soothing squirt as it jetted against her tight cervix.  Things became slick and smooth as his ejaculation filled her deepest recesses, every drop where it belonged.

She curled her toes and squirmed, not quite close enough to achieve a second release, but just enjoying every second of her brother emptying his balls up into her.  Eventually, regrettably, his gasping release reached its conclusion.  She found his muzzle with a kiss again, until both came up for air.

“Guess it’s my turn to do the laundry huh?”  She giggled at him and experimentally wiggled in their embrace.  He wasn’t softening - not yet.  “Or maybe laundry has to wait a while longer?”  Tommy looked back at her with wide eyes, until a small grin formed upon his muzzle.

-------

“Tuesday.  Special Agent Azure, reporting in on special field operations.  Waiting to ID targets, repeat, waiting to ID targets.”  The fox wound one finger round his headphone cable, squeezing the inline mic and pausing the recording.  With his other paw he retrieved a set of cheap plastic binoculars from his backpack and stared intently through them.  The fox gave the mic another squeeze.

“Four...  No five suspects.  Suspect two adults, two cubs, and is that a dog?”  He put down the binoculars, squinted into the distance and then put them up again.  “Canine unit detected.  Further observation is warranted.”

-------

“So you know King really protected us, when me and Tommy ran away.  I wish he was our dog.  Can we get a dog, Dad?”

Julian shot a withering look to Caroline, shrugging his shoulders.

She grinned at him.  “A dog sounds like a brilliant idea, don’t you think, Julian?  Just the thing to keep this pair busy and active and out of trouble.”

Katie piped up again, “And Doctor Valerie said we should get one too!  C’mon Dad please!  We’ll feed him and give him water and take him for walks and he’ll be best friends with King.”  

The group ambled towards the park bench, lost in chatter.

-------

The fox spoke into his lapel in hushed whispers, “Targets acquired.  One girl.  Presumed Katie.  One boy.  Presumed Tommy.  One canine unit, designation King.  Entireness unknown...  --One parental unit, designation Julian.  One other, status female, designation unknown.”  He stopped and gasped.

-------

King pulled towards the bench suddenly and sniffed at the shadowy figure seated on it.  The cubs didn’t notice, until the dog lifted his leg and let loose an arc of warm urine onto the fox’s trendy jeans.

-------

“Eep!”  The fox stood up in a hurry, hood falling back to reveal a shock of blue head fur. 

“Ohmygosh did he get you?!”  The cubs pulled King away while Julian and Caroline looked on in horror.

“No no no I’m fine thank you, no problem.”

He got up from the bench, pulling his hood back up over his head, ears folding under it.  The fox turned away and strolled briskly across the park.

“Tommy did that fox have blue hair?”  Her reverie was broken by King pulling sharply towards something on the ground.  “Hey...  What have you found there, boy?”  Katie stooped down to pick up a compact set of binoculars.  “Hey.  I think he dropped these.”  She looked closer, finding a label on the underside - ‘property of Mark “Azure”’.  Katie turned towards the receding figure.  “Hey Mister, I think you dropped these!”

-------

The fox strode away, muttering under his breath, “Canine unit, intact.  Moving to active reconnaissance, standby for further mission reports.  Special Agent Azure going to radio silence.”  He gave one leg a brief shake, chuckling wryly to himself.  “Dogs...”

A sudden thump against his legs nearly bowled Mark over.  He span round to see Katie standing right next to him, panting, split off from the group.

“Hey Mister, you forgot these.”  The girl held out the binoculars with an outstretched paw, regarding him curiously.

He looked back at her, caught in a moment of surprise as their eyes met. His gaze dropped.  Dropped to the roundness of her tummy.  Her gaze dropped too, then back up to his blue hair, peeking out beneath the hood.

They both started speaking at the same time.
“Hey aren’t you the twin who ran away?”
“You're that fox from the arcade?”

A look of recognition flashed between them.  Katie’s eyes grew wide and then heat flooded into her cheeks.  The arcade.  The fox had seen them.  He'd seen her and Tommy.  This fox.  Before she could say anything, he took hold of her outstretched paw.

“Yeah I saw you; I saw everything.  You put on quite the show.  What kind of a girl fucks her own brother?”  He whistled, gaze flicking down again to her stomach as a sly smile curled his lips.  The fox's amber eyes twinkled.  “Bring him here tomorrow and let’s talk all about it.  Deal?”

Before she could respond, the fox winked at her, palmed his binoculars, and quickly walked away.  

-------

“But Daaaaad!” They howled in unison, looking from Julian to Caroline.

“I’m not having you out on your own again, not after you ran away.  Not with Katie in her present condition.”

“We won’t run away again.  Why would we?”

Julian shook his head.  “It’s not...  It’s not safe.”

Katie pouted.  “Then we’ll take King.  He’s always kept us safe.”

“You know Aunty Susan wants King back again next week.”

The cub put her paws on her hips.  “We’ll take a mobile phone.”

“Listen Katie, I just can’t--“

“You and Auntie Caroline can have some time to yourselves!  We’ll be out of your hair.  Look, you can even follow our position on the computer with this new phone app.”  Her voice took on a pleading tone.

“I don’t think--“

Katie looked on the verge of tears.  “Jeeze Dad we’re not babies any more!”

Caroline spoke up quietly, “Perhaps you should consider letting them, Julian.  Maybe it would help the... situation.”

The adults turned away and spoke in low hushed voices to each other, while Tommy and Katie looked on.

Katie gently elbowed her brother in the side, “Feel free to speak up any time, Tommy.”  She shot him a glare.  Before he could respond, the adults turned back to them.

Caroline cleared her throat.  “Tommy, Katie, we’ve come to an agreement.”  She looked from one cub to the other.  “As a mark of trust, we’ll let you go to the park.  But not on your own.”

The cubs howled again, “Aww but...!”

“Now listen.  Just listen.  One of us will take you there in the car tomorrow.  We’ll drop you off.  And after an hour, we’ll pick you up again.  You can take King if you like.  If everything goes well, you can do this again.  Does that sound good?”

They nodded quietly.  Tommy took Katie’s paw and held it in his.

“Well?  What do you say?”

The cubs looked from Caroline to Julian and back again.  “Thank you Auntie Caroline.  Thank you Dad.”

“Now it’s well past your bedtime.  Off you go please.”

Without another word the cubs scuttled off upstairs.

-------

The fox whispered into his lapel, “Tuesday night.  Special Agent Azure, reporting in on special field operation.  Location: unknown.  I have tracked the targets to their place of residence.  Commencing surveillance operations.”

Mark readjusted his position up the tree, making sure he was secure against the upper branches.  The view through the window was perfect.  But just whose window was it?.  He grasped the binoculars tightly and peered through them.

-------

“...Tommy, jeeze I can’t believe you didn’t remember who that guy was?”

“But that was months ago.  And you’re saying he saw the whole thing in the arcade?”  He blushed.

She paused for a moment, stopping to think that maybe it was embarrassing.  “Well, uh, yeah.  I think so.  We must have been on the security cameras or something.”

Tommy glared at her.  “And you’re only telling me this now?  Didn’t it worry you?”

She sat at the end of the bed and patted for King to jump up.  The German Shepherd dutifully did so and curled up at her side.  “Kinda.  But, um.”  She twirled a lock of hair through her forefingers.  “I kinda liked it.”

He tilted his head at her, “Huh?”

Katie began blushing furiously.  “He didn’t look upset about it.  Not today either.  That means he didn’t mind seeing us.  I think maybe he liked it.  Maybe a lot.”  She petted King along his muzzle, avoiding Tommy’s gaze.  “I like the thought of that.  I think I like it a lot too.”

Tommy stared at her, aghast.  “But what if he’d gone and told somebody?!”

“Don’t be silly Tommy, we were miles from home and he didn’t know us - who would he tell?”

He glared at her again. “How about the police?  Or how about now?  He could tell someone right now.”

She sighed and took his paw.  “Everybody that matters already knows already.  Things could hardly get worse, could they?  And you know, I just had a good feeling about him.  And I still do.  A really good feeling.  Why do you think he came all this way to find us?”

Tommy paused, blinking as he thought about it for a minute.  “Huh.  I didn’t think about that.  But just how did he find us anyway?”

“We were on the news, silly.  Remember?  All that running away, we’re practically famous!”

His ears flattened and the cub shrank down a little. “Wow you’re right.  Damn.  We’re famous?  We’re famous!  For, uh.  Well yeah.”

She rubbed along King’s side as he rolled over on the bed, presenting his pale furred belly to the twins.  “You better believe it.  So this guy accidentally saw us, and I think he liked it, and he came to find us.  I think his name is Mark.”

“And we’re going to see him again tomorrow in the park?”

Katie gently let her paws wander lower, lower down the dog’s deep chest, combing through the thick fur towards his belly.  King sighed contentedly and parted his hind legs.  “You bet.  And we can find out just what he saw, for sure.  And, uh.  Maybe he wants to see more.”

Tommy’s eyes widened.  “You mean...?”

She smiled shyly at her brother.  “Maybe we could put on a little show tomorrow.  Like we did for Dad.”  Her paw closed around King’s ample sheath as her other paw rubbed further between his hind legs, further and further until her pads grazed over his warm testicles.  The dog spread his hind legs a little wider.  “What do you say, Tommy?”

-------

Mark gripped the branch in a blind panic, nearly falling out of the tree.  “Fuck!”  The fox readjusted his position, and then his pants.  “Special report from agent Azure.  Canine unit, designation King, definitely intact.  We have, um, we have a category-1 interspecies incident.  This will all have to go into my report.”  