
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/773347.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Social_Network_(2010)
  Relationship:
      Eduardo_Saverin/Mark_Zuckerberg
  Additional Tags:
      D/s
  Stats:
      Published: 2013-04-25 Words: 2932
****** Be Careful How You Touch Me (My Body is an Earthquake) ******
by suaverin
Summary
     Mark and his stepfather, Eduardo, start pushing their boundaries a
     bit.
They're usually not so kinky. Really, they're not.
 
The least amount of kinky you can be about fucking your fifteen-year-old
stepson, that's how kinky Eduardo is. But Karen has been on this kick recently
of trying to get Mark to call Eduardo dad, and as thankful as Eduardo is that
Mark outright refuses, he still notices Mark squirming in his seat every time
Karen mentions it off-hand, the glint in his eye that Eduardo can't quite
identify but knows that he likes. And that's how it starts. It's not all the
time, of course, but when Mark is feeling particularly filthy, sometimes he'll
let it slip, Yes, daddy, and Eduardo would feel bad about how quickly he loses
it after that if it weren't so unbelievably hot.
But then again, Eduardo kind of finds everything Mark does to be unbelievably
hot, so the point is pretty moot.
Of course, this morning is no exception to Karen's oblivious babbling, You
know, Mark, Eduardo is more of a father to you than your own is, he's really
not that different from your biological father except that he's not an asshole,
and Eduardo is just grateful that Karen hasn't realized just how different
Eduardo's and Mark's relationship is from the typical father-stepson criteria.
Karen heads off to work, kissing them both on the cheek as she exits, and as
soon as the front door shuts, Eduardo is out of his seat at the breakfast table
and pushing Mark up against the cabinets next to the coffee pot where Mark was
filling his cup. Coffee spills everywhere, but neither of them exactly seem to
notice as Eduardo turns the two of them around, bringing Mark in front of him
and licking his way inside of his mouth, quick, dirty.
In hindsight, taking up fucking your stepson senseless as a hobby probably
isn't the best idea, but Eduardo knew from the moment that Mark stared across
the room at him at his reception dinner, Eduardo newly married and almost happy
about it. He knew with that dark gleam in Mark's eyes that Eduardo now
recognizes as lust, a smirk on Mark's lips, well.
Eduardo knew there wasn't a lot he was going to be able to say no to if Mark
was asking it.
Mark scrambles his hands into Eduardo's hair, tries flip them back around so
Eduardo will push him up onto the counter, but that's not how Eduardo is
playing today. They've talked about this, pretty extensively, about control and
submission and safe words and boundaries, ones they want to push and ones that
neither of them should near. The point is, though, that they've never done
anything like this, nothing so outright dirty, pretty much stick to relatively
vanilla sex, and maybe that is a contradiction given their circumstances but
it's still true.
Last night he jerked off to the Mark's words through the receiver of his phone,
tinny and breathless, in the master bathroom like a teenager, his wife sleeping
just outside the door as he defiles her son, lying in his bed just a staircase
away. After they both finished, whispering words of encouragement between
breathless moans, Mark whispered I want to do it tomorrow, and Eduardo hadn't
needed clarification.
Now, he takes in Mark's desperation, his clear need to get fucked, and almost
forgoes the whole thing, nearly gives in to his desire to just rip Mark's
clothes off and fuck him breathless against the kitchen cabinets, but he's been
waiting so long for this and it's become a need at this point.
Mark continues to try to use his grip in Eduardo's hair to turn them around,
and when Eduardo bites Mark's bottom lip in retaliation, Mark seems to remember
everything, the conversation from last night, I want to do it tomorrow, and
stops trying to take control, takes his hands out of Eduardo's hair as Eduardo
slides his into Mark's, pushing him down.
Once Mark is on his knees, Eduardo tugs on his curls a bit until Mark looks up,
looking vulnerable but pupils fucking blown, and in that moment Eduardo knows
for certain that he's not the only one that wants this.
"Mark," he whispers, and he sounds wrecked to his own ears, but Mark just nods
and waits for Eduardo to tell him what to do.
So he does.
"Take my pants off, Mark."
Mark does exactly as he's told, pulling Eduardo's pajama pants down to his
ankles, and Eduardo sees the split second that Mark lets his emotions get the
better of him, the flash of surprise as he sees Eduardo isn't wearing any
underwear, his hard cock springing up when his pants are gone. He's already
leaking at the tip, just from the idea of this thing they're about to do. Mark
licks his lips, staring at Eduardo's erection, but keeps his hands at his side
despite their anxious fidgeting. Eduardo takes his cock in his hand, rubbing
the tip across Mark's lips, dirtying them as Mark stares up at him, looking
almost innocent. Eduardo's breath catches.
"What are you waiting for?" he asks. "Suck me."
Mark dips his tongue out, gathering the precome at the tip, licking at it
before pulling back an inch and swallowing. He moves back to where he was,
mouthing around Eduardo's dick until it's shiny with his saliva. Eduardo pulls
on Mark's hair to get him to look up.
"Did I say tease me, Mark?" Mark shakes his head. "I didn't think so. Suck me."
Mark nods, and then the next thing Eduardo knows Mark's got the tip of his dick
in his mouth, suckling lightly, eyes fluttering closed and whining in the back
of his throat. Eduardo throws his head back, moaning Oh, yes, and tightens his
grip in Mark's hair.
"You like that, Mark? You like sucking daddy's cock?" He's already breathless,
losing his coherency. Mark doesn't pull off to respond, only lowers his mouth
to take more of Eduardo into his mouth. Eduardo groans, guttural. "Oh, yeah,
that's it, Mark, I bet you like me in your mouth, I know you like sucking my
big cock, suck it harder, Mark, yes-"
Mark begins working his way down Eduardo's dick, trying to get his mouth around
all of it, but he's young and Eduardo has never wanted to push him before this,
would always take what he was given gladly, but that results in Mark still
having a gag reflex. He chokes on Eduardo's cock as he nears the base, and
Eduardo moans at the feeling, Mark pulling back a little only to try again.
"Yeah, Mark, choke on me, on my big cock in your mouth. Is it too much for you,
Mark? Can you not take daddy's big dick?" Mark opens his eyes, locks them onto
Eduardo's and narrows them, glaring, and Eduardo knows if his mouth wasn't
otherwise occupied that he'd be scowling. Eduardo yanks on Mark's hair and Mark
moans around him, eyes shutting once again, and that's all Eduardo can take,
coming in hot pulses, pushing himself all the way into Mark's mouth and feeling
himself hit the back of Mark's throat as he rides out his orgasm.
Mark looks up at him, lets Eduardo's soft dick fall out of his mouth, licking
his lips when it's gone. Eduardo stares at his mouth as he does it, and when he
finally meets Mark's eyes again Mark smirks, knowing. Eduardo wants to taste
his come in Mark's mouth, taste himself inside of Mark, so he drags Mark up
from his knees and pulls Mark in by his hips, shoving his tongue into Mark's
mouth and licking his own taste out of it.
And then Eduardo feels a hand wiggling between their bodies, pulls away to
watch Mark rub along the length of himself through the fabric of his pajama
pants. Suddenly, he remembers a fantasy Mark had confessed to him.
"Did I say you could do that?"
Mark stops stroking himself, looks up at Eduardo with wide eyes. "Wardo?"
"Did I say you could touch yourself, Mark?"
Mark sighs, drops his head. "No," he mumbles to his feet. Eduardo raises his
chin with two fingers.
"What?"
"No," Mark says, curt, glaring.
Eduardo leans in, mouth inches from Mark's. "So I guess I should make sure you
don't do it again, huh?" Mark closes his eyes, clearly shaken by Eduardo's
words. "How should I do that, Mark?" Eduardo whispers.
"I- I don't, um. I don't know," Mark stutters.
Eduardo leans in closer, whispering into Mark's neck, just below his ear.
"Should I punish you, Mark?" Mark shivers, almost imperceptible. Eduardo grins.
"You'd like that, wouldn't you? You dirty little whore. You want me to punish
you."
Mark breathes out, some weird sigh-moan combination, shivers again.
Eduardo pulls back to his previous position, almostbutnotquite touching his
lips to Mark's. "Answer me, Mark."
"Yeah, Wardo, punish me," Mark breathes, locking eyes with Eduardo, and he
hasn't had enough recovery time to get hard again but fuck if Eduardo's dick
doesn't try.
Eduardo spins Mark around, facing the sink, ass exposed to Eduardo and gripping
the sink with white knuckles without having to be told to. Eduardo leans in,
running his hands down Mark's arms and nuzzling his nose in the nape of Mark's
neck before pulling back and slowly taking off Mark's pants. Mark seems to have
forgone boxers as well, and Eduardo really isn't as surprised as he thinks he
should be. He pulls Mark's pants as far down as he can standing and then
crouches down to remove them the rest of the way, tugging on them a little to
make Mark step out of them. When Mark's pants are gone, Eduardo stands up once
again, running his fingers along the back of Mark's legs as he goes, causing
Mark to whimper quietly.
Eduardo takes a moment to admire Mark in this state, head bent down, breath
rapid in anticipation, ass stuck out for the claiming and that stupid fucking
worn-out t-shirt still covering his torso. It's all just so Mark that Eduardo
has to scoff to himself softly.
Mark turns around at the sound, looking a little nervous but more turned on
than anything. Eduardo leans down to kiss Mark quickly, fondling Mark's ass as
he pulls on Mark's lower lip lightly, eliciting another whimper. Eduardo pulls
back an inch.
"You ready?" he asks in the space between their mouths.
"Yeah," Mark breathes, a little shaky, but he's holding eye contact.
"You remember your safe word?" Mark nods.
Eduardo straightens himself, runs his hand along Mark's ass once more before
bringing it down, slapping Mark's ass with a thwack that startles Eduardo a
bit. He looks at Mark's body for a reaction, slumped over the sink, and the
only thing Eduardo can really see is that his fingers have somehow tightened
around the metal. Mark sighs softly, almost a moan. He doesn't say his safe
word.
Eduardo spanks him again, an inch away from the first mark. This time, Mark
groans. Eduardo smirks.
"Yeah, you like that?" Thwack. "You like me punishing you? I bet you do, you
dirty boy." Mark only shivers, moans. Eduardo slaps him again, harder than
before, and Mark lets out the loudest moan Eduardo thinks he has ever heard
from Mark, thrust forward and then back, like he's not sure if he should be
leaning in or leaning away.
Eduardo spanks him twice then, in quick succession, and Mark lets his head fall
forward, whispers Yes, Wardo, and Eduardo has to fight every impulse in his
body that is telling him to take Mark by the hips and fuck him into that stupid
fucking sink. He reaches between Mark's legs, feels how hard, how wet Mark is
from this.
"Are you getting off on this, Mark?" Eduardo asks. "Are you getting off on me
hitting you?"
Mark doesn't answer for a moment, replies when Eduardo spanks him to get his
attention. "Yes, daddy, I love it when you punish me. I'm so- shit, daddy- I'm
so sorry for being a bad boy."
"I don't think you are sorry, Mark." Slap. "Do you even know what you did
wrong?"
"I touched myself, daddy. I touched myself without- oh, without asking. I
touched myself thinking about the dirty things I did to you with my mouth."
Eduardo shivers at Mark's words, how good he is at going along with this. "Yes,
Mark. You touched what is mine. You don't get to touch this-" Eduardo runs his
palm up the length of Mark's cock, rough, "without my permission. Do you
understand me, Mark?"
"Yes, daddy, yes, I'm sorry."
Eduardo had more plans for this, but his dick is achingly hard again and he
needs to be inside of Mark right the fuck now, so he compromises. "Three more,
Mark. Count them." He rears his hand back, spanks the red skin of Mark's ass
harder than he has the entire time.
"One, daddy."
Slap.
"Two, oh, daddy, yes-"
Slap.
"Oh, oh, three, daddy, yes, yes, unhh-"
Eduardo spins Mark around, pins him against the cabinets, licks into his mouth.
Mark moans against Eduardo's tongue, filthy, sending shivers through Eduardo's
body. Eduardo puts his hands just under Mark's ass, feels Mark shiver and
whimper at the feeling of Eduardo's hands on his sensitive skin. Eduardo picks
him up as Mark wraps his legs around his waist, Eduardo carrying them into the
living room and collapsing onto the couch, Mark on Eduardo's lap.
"You were so good, baby," Eduardo whispers in between quick kisses. He reaches
out to run two fingers along the length of Mark's dick, hard and leaking, and
Mark gasps, arches into the touch. Eduardo takes his hand away, grips Mark's
hips in his hands.
"Oh, please fuck me, daddy, fuck me-" Mark whispers, and Eduardo can't contain
himself anymore.
"I need, I need-" he stumbles, and Mark takes a moment to understand what he
means, but then he is off of Eduardo's lap for a moment and returns with
condoms and lube in hand.
Eduardo stretches Mark with his fingers, Mark gripping at his shoulders as he
circles his entrance and then pushes inside, fucking him softly. Mark's grip
tightens at every new finger, until Eduardo has three of them buried inside of
Mark, just lightly scratching his spot, and Mark whimpers, "Now, Wardo, fuck,
need you now."
Eduardo removes his fingers, letting Mark roll the condom onto his dick and
spread the lube before Mark begins lowering himself, slowly, not taking his
eyes off of Eduardo's, seemingly teasing him. It's all Eduardo can do not to
reach out and force Mark to get with it, fuck him at the rough, fast pace he
wants, but Eduardo knows that he comes better, harder, when he lets Mark take
control, his orgasm coming as a surprise due to Mark's erratic fucking methods,
Eduardo never quite knowing what he's going to do.
And then finally the head of his cock is slipping inside of Mark, tight, hot,
wet, Mark throwing his head back on a moan as he feels Eduardo inside of him.
Mark continues to push himself onto Eduardo's cock until Eduardo is balls-deep
in him, Mark cycling his hips slowly to allow Eduardo a second to get
accustomed to the sensation of Mark all around him.
And then Mark begins to ride him in earnest, hands on the couch at either side
of Eduardo's head, moaning like a porn star with his eyes screwed shut and
mouth slack.
"Yes, daddy, oh..."
"Does it feel good, baby? Do I feel good inside of you?" Eduardo pants,
cataloging the way Mark's eyelashes play across his face as he screws his eyes
tighter still.
"Oh, oh, yes, love your cock inside of me, feels so good, unn, fuck me, daddy,
fuck me-"
Eduardo just tries his hardest to hold on, hands still holding onto Mark's
hips. He's aware words are spewing out of his mouth unchecked, but he can't
bring himself to care when Mark is so tight and eager around him.
"Mark, baby, so tight, oh, oh, baby, that's it, just there, ride me, baby, look
so good, oh, Mark…"
And Mark may be young, but he has better technique than pretty much everyone
else Eduardo has slept with. He takes Eduardo in to the base, bounces a little,
keeping most of Eduardo inside of him with his tiny little thrusts, and then he
nearly pulls all the way off, just the head of Eduardo inside of him, circling
his hips a few times before repeating the entire process.
Finally, Mark reaches a hand out to grab Eduardo's from his hip, closes it
around his dick and begins stroking, mumbling Touch me daddy, please, make me
come daddy, oh, so hard, so wet for you, and then, voice pitching up an octave
on every word, Yesyesyes daddy I'm coming, yes- and releases, muscles
fluttering around Eduardo as his hips move erratically, fucking Eduardo hard
through his orgasm. Eduardo tries to hold on, make it last just a moment
longer, but Mark throws his head back when he sees Eduardo watching him, moans
Wardo, fuck yes, the fucking cheater, and Eduardo screams Mark, baby, shit-
before he comes hard inside of Mark, who is still leisurely fucking himself on
Eduardo's cock through Eduardo's orgasm.
Afterward, Mark collapses on top of Eduardo, sweaty and panting. Eduardo just
brushes the curls back from Mark's forehead, holds him closer, lets himself
have this before they have to go back to awkward family functions and stolen
glances.
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