Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/13235214.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Homestuck
  Relationship:
      Dave's_Bro_|_Beta_Dirk_Strider/Dave_Strider
  Character:
      Dave's_Bro_|_Beta_Dirk_Strider, Dave_Strider
  Additional Tags:
      Incest, Shota, Voyeurism, Exhibitionism, Sex_Toys, Porn, Masturbation,
      Sexual_Fantasy, Questionable_Parenting_Decisions, Imaginary_Somnophilia
  Stats:
      Published: 2017-12-31 Updated: 2018-03-11 Chapters: 3/? Words: 3070
****** Bro: Watch ******
by forkidcest, thehatpile
Summary
     It's not like you didn't know, when you decided to pick up a baby and
     take him home, that raising a kid would be challenging. You just
     hadn't anticipated this particular difficulty. And why would you?
     You're pretty sure that for most semi-parental figures, not fucking
     their kids requires exactly zero effort.
     For you, it's turning out to be quite a bit harder.
Notes
     By SZ, written for the 2017 Stridercest Secret Santa gift exchange.
***** Chapter 1 *****
Chapter Notes
See the end of the chapter for notes
You are 98% sure that your kid brother wants the D. This is a problem.
It's not like you didn't know, when you decided to pick up a baby and take him
home, that raising a kid would be challenging. You just hadn't anticipated this
particular difficulty. And why would you? You're pretty sure that for most
semi-parental figures, not fucking their kids requires exactly zero effort.
For you, it's turning out to be quite a bit harder.
Dave, now only a few weeks past his eleventh birthday, has transformed over the
last few months from an adorable, sometimes annoyingly precocious child to an
adorable, wildly oversexed little deviant. You figure it's got to be puberty,
though you wouldn't know it to look at him--for all Dave's outgrowing his
clothes faster than ever, he's still smooth-skinned and baby-faced. He's still
very much a kid, even if his voice cracks occasionally. Usually when he's
shoving something up his ass.
Yeah. That's a thing, now.
You weren't exactly a late bloomer yourself, but you're pretty sure you didn't
figure out the joys of ass play until you were at least thirteen. Of course,
with the exception of one brief but memorable foster placement, you also didn't
grow up surrounded by assorted sexual paraphrenalia, so maybe this one's on
you. 
Nice job, Bro, you fucked your kid up good.
It's definitely your fault he has access to a wide variety of sex toys, since
he's been raiding your closet for them. You briefly considered locking them up
when he started doing that, but opted instead to gather up all of the really
big ones and put them in a box labeled "catastrophic rectal prolapse for
dummies," adding a graphic hand drawn illustration of a forlorn smuppet with
stuffing trailing from its rump for good measure. It seems to have done the
trick; you've been paying attention, and while the toys Dave's been borrowing
aren't exactly age-appropriate, they're at least safe. Dave is creative and
resourceful; if he wants to fuck himself, and he very clearly does, he'll find
a way. You figure your collection is a better option than the likely
alternatives of produce and household objects.
Or, you know, dudes.
As both a former street kid and an auteur in the shockingly lucrative business
of online puppet pornography, you are more aware than most that there are a
whole lot of perverts out there. You've never found the knowledge particularly
troubling. You've always been confident that with your considerable skills in
surveillance, stealth, and swordkind, any asshole who tried laying so much as a
lascivious finger on your little bro wouldn't even have time to regret the
error of their child molesting ways before finding their torso full of sharp
objects.
You hadn't previously considered the possibility that the asshole in this
scenario might be you. You're sure as fuck considering it now, though.
The screen in front of you shows a small but crystal clear picture of Dave
lying on his back on the futon, stark fucking naked, one knee bent to his
chest, three fingers working in his ass. In your professional opinion as an
internet pornographer, this is premium fucking content. The kid's a natural. If
you put this shit on the web, people would pay out the fucking nose and beg for
more. In your official capacity as Dave's legal guardian, however, there's no
fucking way you're letting anyone lay eyes on this footage. It's not even being
saved to your hard drive; since the first time you got a digital eyeful of
Dave's masturbatory explorations, you've had all the cameras in the house set
to streaming only. You may be a bona fide professional pervert, but you don't
mess around with the illegal shit. You've always figured if you're in the mood
for anything sicker than barely legal twinks getting rawed, that's what
cartoons are for. Cartoons, and puppets. Child porn is a hard no.
Then again, you're the dude squeezing your dick at the sight of your kid
brother fingering himself, so. Apparently that hard line isn't exactly where
you thought it was.
Ha ha.
On the screen, Dave lets go of his dick to reach for something on the floor,
just outside the camera's visual field. He comes back with a smooth purple
dildo and fuck, you know it's a modestly medium-sized model, but in his small
hand, with his thin slippery fingers smearing lube along the shaft, it looks
pretty big.
Between his skinny thighs, it looks fucking enormous.
He sets the shiny head of the toy against his hole and pushes. His eyes roll
back as the head pops in, his slim little cock twitches, and you give in, unzip
your jeans and release your aching dick, fist it furiously while Dave slides
the dildo deeper. When he starts pumping it in and out you slow to match his
rhythm, and when he shudders and comes, spattering his chest with thin spunk,
it takes you less than a minute to get yourself off to the idea of going out
there and grabbing him, picking him right up and flipping him over, bending him
over the back of the futon and showing him what it feels like to get fucked
with a real cock, longer and thicker than the toy he's been playing with. 
 Well, fuck.
Chapter End Notes
     This was meant to be a one shot, but then I realized that a) I
     couldn't cram in all the good bits I'd written without writing more
     interstitial bits and b) the upcoming Stridercest Week is a perfect
     excuse for extending the scenario further, so there will be a few
     more installments. Stay tuned for Bro and Dave eventually occupying
     the same room (!) and achieving some form of physical contact (!!)
     and maybe even *gasp* fucking?
***** Chapter 2 *****
Chapter Notes
See the end of the chapter for notes
You have a big dick. It's not, like, a ludicrously huge porn star cock, but
it's big. Big enough that some of your partners have had trouble taking it
comfortably. Big enough that your toys of similar dimensions are buried in the
only-somewhat-exaggerated-risk-of-rectal-prolapse box at the top of your
closet, which Dave has so far been smart enough to stay out of.
Which means if you fucked him, your dick would definitely be the biggest thing
he'd ever taken.
You're not proud of how much time you spend thinking about that.
Today Dave is using a vibrating prostate massager, curved just right to make
him shiver and whine as he rocks back and forth on it, one hand tugging on his
slim dick, the other braced on the arm of the futon. And hell, all you can
think about is making him ride you like that, imagine gripping his skinny hips
and holding him down, flush against you, so you could feel his hole clenching
tight on your cock, watch him wiggle and squirm and moan at the feel of being
stuffed so full.
You've sat in that exact spot on the futon and imagined grabbing him and
pulling him down, sitting him in your lap and letting him feel the length of
your cock hardening under his ass, holding him by the hips and grinding it up
against him. You'd snatch his shades away so you could see how his eyes would
widen at the size of it... you'd keep your eyes on his, watch his expression
while you shoved your hand down the back of his jeans and stroked a fingertip
over his hole.
In your mind's eye he's simultanously nervous and aroused, intimidated by the
size of your cock, but eager for it at the same time. It's easy to picture;
after all you've seen him doing, you know exactly how his face looks when he's
eager for something in his ass.
He's so small you'd be almost more than he could handle, but you'd make him
take it, shove in deep and hold him there, hands hard on his bony hips. Maybe
you'd even be able to see the shape of your cock distorting the thin skin of
his belly, like you've seen in porn, skinny twinks sinking down on long thick
dildos, leaning back to show off the bulges of the toys inside them--your dick
isn't that big, not like those fake monster cocks, but then your little brother
is smaller than any twink you've seen in porn, so maybe...
Fuck, he'd be so tight. You'd have to take your time prepping him, and he'd be
scared at first but you'd make him feel so good, stretching him out on your
fingers first and then teasing him with your dick, rubbing it against his
slippery lubed up hole until he was begging for it, then popping just the head
of it in and out and in again, teasing at his rim--tight, god, so tight--and
when you finally pushed all the way into him you'd have to hold still to let
him adjust. You'd just sit back and watch him gasp and squirm on your cock,
overwhelmed with having the whole thing inside him. You'd play with his little
dick until he came, ass muscles clenching and spasming around you, and then
when he was sprawled loose and fucked out on top of you, boneless as a rag
doll, that's when you'd fuck him for real, jostling his little loose-limbed
body with the force of your thrusts, your hips lifting him right up, making him
bounce on your cock til you let go and filled him up with come.
On the screen, Dave is sprawled panting on the futon, eyes half-closed, jizz
smeared on his stomach. There's a little bit smeared on the screen, too, shit--
you didn't realize you'd shot so far. You wipe it off with your free hand and
refocus on the image of your brother as he reaches down to the base of the toy
with a shaky hand and switches it off. He doesn't pull it out, though, and now
you're imagining staying inside him, after. You hold your spent dick and
daydream about chilling on the futon with Dave dozing in your lap, leaning back
against your chest, the back of his head resting heavily against your shoulder,
legs spread and dangling to either side, your cock snug and warm in his ass.
He'd stir sleepily when you stroked his flanks, caressed the soft insides of
his splayed thighs, rolled his balls gently between your fingers; he'd squirm
when you pinched his nipples, and writhe at the feeling of your dick hardening
again inside him, slowly swelling and stiffening until you were ready to go
again.
You'd do him slow, the second time, a nice long lazy fuck. You could hold him
down with a hand on his belly, this time, see if you could feel the pressure of
your cock under your palm, grinding so deep inside him, milking his prostate
until he was sobbing with the pleasure of it, writhing in your lap. You wonder
how many times you could make him come on your cock before you'd lose it, flip
him over and pound his ass as hard as you could, slamming into him, and flood
his insides with another load of jizz.
You picture it dripping out of him, imagine thumbing it back inside the tender
gape of his hole after fucking him loose and sloppy. You could slip a plug
inside him easy, after stretching him so wide with your cock. Slick it up with
your good warming lube, a nice deep soft heat to soothe his sore hole, relax
those overworked muscles... and keep him wet and open, ready for more. You know
just the toy you'd like to use, too, a nice thick plug in the box at the top of
your closet, bright red with a subtly heart-shaped base that would look so nice
nestled between the pale cheeks of your little brother's ass.
Shit fucking christ, you are a terrible guardian.
Chapter End Notes
     fun fact: while I was finishing up this part, I got a robocall asking
     if I was in need of urgent prayer
***** Chapter 3 *****
Chapter by forkidcest
Chapter Notes
See the end of the chapter for notes
The hardest thing about this whole situation--well, that's definitely your
insistent dick, but the most difficult thing, the thing that has you barely
hanging on to control of your baser urges, is that you are by now almost
entirely sure that Dave wants you. Not just a cock in his ass--which the
evidence suggests he most assuredly does want--but yours in particular.
You're almost completely certain that if you gave in and pursued your desire to
fuck him, he'd be down. Not just down--enthusiastic. Eager. You think he might
want your dick almost as much as you want to give it to him.
Whether or not he wants it should be immaterial. He's eleven years old. That's
too young to be fucking anyone, much less an adult, much less the only adult
solely responsible for ensuring his wellbeing. He's your brother. He's your
kid.
He's stark naked on the futon, legs splayed open, fingering a realistic dildo
with a thoughtful look on his face.
You should stop watching.
You don't.
You watch while he lubes his fingers and opens himself up and slowly works the
toy into his ass, and you think about it for the rest of the day, and late that
night you lie back and fist your dick and think about making your little
brother ride you reverse cowgirl. You could hold both his wrists behind his
back in one hand so he couldn't touch himself, lift them to make him lean
forward and give you a perfect view of his pretty ass, of your thick cock
spreading him wide, sliding in and out of that tight hole. He'd be struggling
to keep fucking himself on you in that position, shoulders straining, thighs
trembling. You could stroke down his spine with your free hand, pet his
shivering flanks, maybe smack that ass, see if it makes him squeeze you even
tighter. You could run a finger along his rim, all stretched taut and slippery
with lube, could feel the slide of your dick in him as he shoved himself back
on you, stuffing himself full. You wonder if he could come like that, from just
your cock inside him. You wonder if he'd wear himself out trying, ride you til
the muscles in his thighs gave out, until he slumped down on top of you, unable
to use his arms for leverage or even balance, because yeah, you'd keep hold of
his skinny wrists, make him work for it until he came on your cock or until he
couldn't take it anymore, until he couldn't do anything but writhe weakly and
sob, begging you to touch him, desperate for release.
You are one sick fuck.
It could never be said that you are a man suffering from a shortage of sex
puppets. You are remarkably well-supplied in that area. Yet here you are,
caught up in yet another fantasy of using your little brother like some kind of
fuck doll.
It's because of all the things you've been watching him do, it's got to be. You
never entertained a single sexual thought about Dave before he started sticking
your toys up his ass on camera. You're making it worse by watching, and by
avoiding him; when's the last time you even saw Dave in a non-pornographic
context?
You heave yourself off the futon and go into his room.
Dave looks like the kid he is, curled around his pillow, face slack and soft
with sleep. There's a bit of drool at the corner of his mouth. He looks very
young, which he is, and innocent, which he definitely isn't, and more precious
than anything else you can imagine. Seeing him like this reminds you of when he
was a baby.
It doesn't work. You still want to fuck him.
You are standing over your kid brother's bed, watching him sleep, and you've
got your hand on your dick, which is hard as fuckin' steel with how bad you
wanna stick it in him.
God, you're a terrible person.
Dave's always been a heavy sleeper. When he was a baby you could pick him up
and tote him around with you, whatever you were doing, and he'd just keep
snoozing away. When he was a bit older, five or so, there were times when he
nodded off during dinner and faceplanted in his food, and barely stirred while
you cleaned him up and changed him into his pajamas before putting him to bed.
He still hardly rouses when you carry him to bed, those times when he falls
asleep on the futon during a movie, though that happens less and less
frequently.
You wonder how much he would sleep through now. If you were careful, you're
sure you could undress him without waking him up. Beyond that, it would be
trickier. How much could you touch him, really, without breaking his slumber?
Could you stroke his little dick to hardness? Play with his balls? Spread his
thighs and get a nice up close view of that tight little hole?
You don't touch him, but you keep thinking about it. Back out in the living
room, stretched out on the futon, you close your eyes and imagine testing that
little pucker with a fingertip, feeling how much it would give. Between the
workout he gave it earlier and the relaxation of sleep, you think it would
yield pretty easily. You could probably get a lubed up finger into him without
waking him up. Maybe two. He's such a sound sleeper, after all--he'd squirm a
bit, wriggle around in the sheets, and you'd stay very still until he settled
down again, wait for his breathing to even out before slipping them in deeper.
You'd keep it slow and gentle, stretch him oh so carefully, gradually, and he'd
whimper and moan in his sleep, unconsciously thrusting back against your
fingers, enjoying the teasing sensation in some delicious dream while you
enjoyed the warm clutch of his muscles around your fingers, the way his
clenching rim would loosen, little by little, til you had him stretched wide,
humping his pillow in his sleep with three of your fingers buried deep in his
ass.
And then--then you'd ease them out, and he'd whine softly, and you'd hitch up
his hips and set the head of your dripping cock against his hole, and that's
when you'd rouse him, if you'd managed to get that far, with one long smooth
steady thrust, so he'd come awake with you balls deep inside him.
The evidence all over your hand and stomach suggests that you would not be able
to get that far, regardless of how soundly Dave slept. It's not like your lack
of stamina really matters, anyway, since your hand and your overactive
imagination are getting all the action, here. You're not about to molest your
little brother in his sleep.
You're not.
Chapter End Notes
     this was supposed to be chapter 4 but you know what, it's been done
     for weeks and I don't think switching the order of these particular
     chapters is going to fuck with the continuity
     ps. I won't make you wait so long for the next bit
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