Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/2336210.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      F/M
  Fandom:
      13_Going_On_30_(2004)
  Relationship:
      Jenna_Rink/Matt_Flamhaff
  Character:
      Jenna_Rink, Matt_Flamhaff
  Additional Tags:
      Underage_Sex, child_in_adult's_body, Fingerfucking, Vaginal_Fingering,
      Plot_What_Plot/Porn_Without_Plot, Age_Difference, Flash_Fic
  Collections:
      FIVE_FICS_FIVE_DAYS:_September_19-23_2014
  Stats:
      Published: 2014-09-21 Words: 4180
****** thrill you more than any ghoul would ever dare try ******
by Annakovsky
Summary
     Matt calls off the wedding after all.
Notes
     WHAT, BIG DID IT, IT'S NOT THAT PERVERTED.
     (Haha jk, it is. An adult unknowingly has sex with a 13-year-old in
     an adult's body. Be warned!)
They go back to Jenna's apartment after Matt finally finishes canceling the
wedding, apologizing and sending everybody home, returning gifts and talking to
everyone so Wendy doesn't have to. He looks pale and exhausted in the cab back
to Manhattan, but when Jenna reaches out tentatively to put her hand on his, he
smiles at her, relief in his eyes, and lifts her hand to kiss the back of it.
It's so, so romantic, his dark eyes warm, and he's Matt, and she can feel
herself melting into a puddle. She scoots over to curl into his side, and he
puts his arm around her, and he's so big and comforting. She takes the hand
that's over her shoulder and laces her fingers through his, and she's so happy,
happier than the time she got an Easy Bake Oven for Christmas, happier than
when she went to her first school dance two years ago in sixth grade, happier
even than when she found out Chris Grandy was coming to her birthday party.
It's the same bubbling, tense excitement of Chris Grandy flooding all her
limbs, her heart pounding, but it's mixed with a steadier, spreading, fixed
happiness, sturdy and safe and comfortable, something you could live in without
getting exhausted. This must be what adult happiness feels like, knowing she
loves Matt and he loves her back, mature and grown-up, happiness deep down to
her bones. She can't wait to tell Becky and the other girls about this.
She's playing with Matt's fingers, looking at that strange adult arm hair of
his, visible in the dark cab as streetlights flicker by, there and then gone
again into the darkness. "Matt?" she says. She turns her head to look up at
him, and he's already looking down at her, smiling and so, so handsome -
- sometimes she can't believe that Matty grew up to be this handsome man. "I'm
really happy," she blurts out.
Matt beams at her, this slow, spreading smile. "Me too," he says. The farther
away they get from Wendy and his not-happening wedding, the better he looks.
His eyes are crinkling in such a weird, adult way, like her dad's do, and she
puts up a finger to trace the lines. "What?" he says.
"You've got smile wrinkles," she says.
He smiles a little more, so the crinkles get deeper. "Not 13 anymore," he says.
She really wants him to kiss her again. She's got butterflies in her stomach
just thinking about it.
He doesn't let go of her hand until they have to pay the cab driver, but then
he takes it again as they go into her building, and it feels so nice, knowing
he wants to touch her like that, even though everybody can see. Up on her
floor, they see Becky in the hallway, and when Becky sees Matt and sees that
he's holding Jenna's hand, her eyes go huge and she stares at him, then Jenna.
I know, right?! Jenna mouths at her behind Matt's back. She feels so proud and
important and grown-up right now, casually walking along holding the hand of
the cutest guy in New York. She can tell that Becky's impressed. Now she really
can't wait to tell Becky all the details.
But once they're in her apartment, just the two of them, her heart starts
pounding. She knows they're going to kiss again, but last time it just kind of
happened, the swings and the dark and Matt hovering above her. Now that it's
more on purpose, the lights on bright in her apartment, everything normal, she
doesn't know what she's supposed to do, and she's worried Matt's going to
notice.
"Um," she says, putting her hands in her back pockets, then changing her mind
and taking them out again, then feeling weird with them just dangling by her
sides, so she crosses them over her chest. "Do you want something to drink or
anything? I have, uh, water, and I think -- oh, I have alcohol over here."
Alcohol, that's what grown-ups drink, right? She hasn't had any of the stuff in
her apartment yet, because she tried one of the bottles right when she first
got here and it tasted disgusting, not at all like the Pina Coladas she had at
the party. Maybe you're supposed to mix it with something?
Matt shrugs, smiling at her. He's got his hands in his pockets, standing in the
middle of the room in the remains of his tux from the wedding; he took off the
bow-tie and the cummerbund and jacket, but he's still in the white shirt and
black pants, and it makes him look so grown-up and serious. "Uh, sure, I could
use a beer," he says.
Beer. Beer. Oh, she does have that! "Oh, beer!" she says. "I think I have some
in the fridge, one second."
Thank goodness, those bottles she thought she saw are still there, and she
manages to find a bottle opener too to open it for him the way she sometimes
does for her dad. Okay, great, tonight is going great. When she brings two of
them back out, Matt's sitting on her couch with his arm stretched out along the
back, which makes it easy for her to sit right next to him.
"Cheers," Matt says, and clinks the neck of his beer bottle against hers, and
when she takes a deep sip she almost spits it right out again. Oh God, beer is
disgusting! Her whole body shudders and she makes a disgusted noise, sticking
her tongue out.
Matt laughs. "Not really your drink, huh?" he says, taking the bottle out of
her hand to set it on the coffee table, grinning at her all amused. Then he
kisses her.
It's even better this time than last time, more serious feeling, less of a
surprise. Matt left Wendy at the altar for her, and he's kissing her, and Jenna
feels like she's in a fairy tale, the good part at the end where they live
happily ever after.
Matt moves his mouth on hers, so Jenna's lips come a little open, and then
Matt's tongue is sliding into her mouth, which is so weird and surprising that
she almost laughs. But she manages to be a grown-up and pretend like this is
normal, and keep kissing him, and, okay, so this is French kissing, wow. It
feels different than she thought; his tongue doesn't taste like anything and
it's warm and wet, and she always thought she wouldn't know how to do this, but
she's doing it, and her stomach is dropping, everything so intense and real she
feels like she can't breathe. Being 30 really is as amazing as she thought it
was going to be.
When Matt finally pulls back and rests his forehead against hers, Jenna can't
help giggling a little, nervously.
"What?" Matt says.
Jenna giggles a little more. "Matty, you Frenched me," she whispers. She can't
believe he really did it and it's really Matt. They used to talk all the time
when they were younger about how disgusting and weird French kissing must be,
and one time when they were nine they got curious what people's tongues tasted
like and they licked each other's as an experiment. It was gross, not like this
at all.
Matt laughs, low in his chest, like he's remembering that too. "I guess I did,"
he says. "You want to do it again?"
"Okay," Jenna says, and he kisses her again. This time she's ready for it,
kissing him back and even trying to move her tongue against his too, and he
makes a little pleased noise when she does, and she's pretty sure she's getting
really good at this. She can't wait to tell Becky about this either, her first
time Frenching, tell her everything she's figuring out about breathing through
your nose and how it's not as hard as you think.
She's not quite sure where to put her hands while they're kissing -- she has
them kind of squashed against his chest, but then moves one to his shoulders,
drifting over his body, and he feels so muscle-y and hard and grown-up, not
like the soft squishy Matty that she used to hug when he got home from camp
every year, and it's so weird he's an adult, with a job and an apartment and
everything. It's so weird they both are. Her hand that's still resting against
his chest slides up a little more, her meaning to put her arms around his neck,
but her fingers graze the little bit of chest hair that shows at the neck of
his shirt and she stops, pulling back to see. Matt's so hairy all over now,
it's so strange.
"What?" Matt says when she pulls back.
"You've got chest hair now too," she says. She's tracing it with her fingers,
and she just -- she really wants to see.
Matt laughs. "Um, yep," he says, bemused, but still smiling at her so his eyes
crinkle.
"Can I see?" Jenna says, feeling shy and daring.
Matt laughs again. "I'll show you mine if you show me yours," he says, teasing,
tugging at the bottom of her t-shirt like they should both take their shirts
off.
Jenna's eyes widen, her face starting to get warm. "Um," she says. That's so
dirty, him wanting to see her boobs, but also they don't even really feel like
her boobs -- they're like this awesome bonus feature that came with this new
tall body. She mostly feels like she and Matt are at some kind of weird costume
party, both of them dressed up as grown-ups. So it's not like it's that dirty,
right? "Um, okay," she says, feeling daring and a little bad.
Matt grins at her and starts unbuttoning his shirt, this look on his face like
he thinks they're playing a really funny game, like when they were little and
played Mad Libs, and she can't help leaning in again to kiss him again, and he
kisses her back so hot and wet and intense that she feels dizzy by the time
he's done.
Once Matt has shrugged off his tuxedo dress shirt and his undershirt, Jenna
just stares. He has so much hair on his chest, just like a real grown man,
thick and dark, and she was kind of thinking it'd be just on his chest, but
it's on his belly too, a thick line of it tracing down until it disappears into
the waistband of his pants, and her eyes widen as she wonders how far down it
goes. There's a little bit of a bulge at the crotch of his pants, and she
quickly looks up again before he can see her staring, even though she really,
really wants to. That's so dirty too, though, wanting to stare at him there!
She reaches out to feel his chest hair, though, running her hand over it, and
it's wiry and funny feeling, and when she looks up at Matt he's watching her
watch him with this amused, sweet look on his face. "Yeah?" he says, like,
asking for approval, almost, looking a little shy himself, and Jenna nods
emphatically. "Yeah," she says, because he's so cute and so handsome -- she
thinks he might even be better looking than Rick Springfield.
After a second of stroking his chest, she suddenly remembers she was supposed
to take her shirt off too. "Oh!" she says, as a flood of nervousness washes
over her, and then she pulls it off over her head really fast, before she can
think better of it.
Matt blinks a few times, and he's staring right at her boobs, and they really
are great, right? She's spent a fair amount of time staring at them in the
mirror herself, and Matt's not even really seeing them because she has a bra
on, her favorite one of grown-up Jenna's -- it's cute and bright and polka-
dotted, pink and purple, just the kind of bra Jenna would buy herself. "Do you
like them?" Jenna says.
She sees Matt swallow, his adam's apple bobbing. "Uh, yeah," he says, and he
bites his lower lip for a second, suddenly looking so much like her Matty that
she wants to cry. He smiles at her, looking bashful and sheepish, and that
makes him look even more like her Matty, and she likes him so, so, so much. "I
used to think about this all the time," he says. "It's so weird this is
happening."
Jenna leans in to kiss him, she just has to, and this time when he kisses her
back his hand moves over the bare skin of her side and up to cup her left
breast, just casual and normal like he doesn't even have to ask, and Jenna's so
surprised she almost shrieks, barely managing to hold it in. Grown-ups probably
do this all the time, grown-up Jenna wouldn't be surprised at going to second
base! She needs to calm down, take a deep breath, it's okay, it's all okay.
Matt squeezes her boob a little, feeling it, rubbing his thumb over the middle
of it, and somehow that feels really good, sensitive and sort of intense and
tight, and when she can feel that he's moving his thumb over a bump, she
realizes her nipple has gotten hard and she wants to die of embarrassment. Matt
seems to be taking it in stride, though, so okay, again, grown-ups do this!
Nothing to worry about! She tries just to focus on kissing him, and how it's
still so, so nice, not think about how he's actually touching her boob right
now, and how the feeling of him rubbing her nipple is kind of making her
stomach feel weird and good.
The only thing is, it's kind of awkward to be kissing like this sitting on the
couch, turned towards each other -- their knees are bumping, and she can't get
as close to Matt as she wants, and she tries to pull her knee up to get it out
of the way but then it's even more in the way, and she feels dumb.
"Here," Matt says, pulling back, his hand still on her boob, over the bra, like
it just belongs there now. "You want to lie back?"
That feels way too illicit -- Jenna's mom has a rule that everybody's feet have
to stay on the floor at all times. But also Matt is so calm and trustworthy and
comfortable, and she really wants to lie down together and touch him better.
"Um, okay," she says after a second, feeling the way she felt when she cut
fifth period once to go hang out behind the bleachers with the Six Chicks and
all the coolest boys in the class, daring and nervous and risky. And then
Matt's lying back on the couch, bringing Jenna along with him, until she's
lying on top of him and kissing him, his bare chest right there, all that skin
touching hers, her bare stomach and shoulders, and she's starting to feel kind
of squirmy and hot between her legs.
She shifts around a little, trying to get comfortable, Matty's hands moving
over her back and her sides and her shoulders, touching her everywhere, and
then she freezes because, um, there is something poking into her right now, and
when she realizes what it is, she can't help it, she dissolves into nervous
giggles again.
Matt huffs out a breath, laughing too but in a more put-upon way. "What now?"
he says.
She manages to rein in her giggles, sort of, and she doesn't want to tell him,
but he's looking down at her and it's just Matt, he'll understand. "Matty," she
whispers, "I can feel your thing."
This time Matt laughs for real, his eyes crinkling. "Oh, no," he says. "Don't
tell my mom."
That makes her totally freeze. Oh God, what if Mrs. Flamhaff catches them like
this, they'll both get grounded forever, and for a second she thinks she better
jump up and run off, they are going to get in so much trouble! But then she
remembers that they're in her own apartment, and there aren't any parents here,
they're all on their own like the time both their parents went to a play
together and let Jenna and Matt stay home alone, eating ice cream and staying
up too late watching movies. Oh God, there are no parents here at all, they can
do anything they want, and the strange crazy freedom of that makes her feel so
hot and nervous and dizzy.
She goes back to kissing him, trying not to think about his thingy poking right
into her, but it feels hot and big, much bigger than she was imagining, and
it's hard to not think about it. Also somehow she's feeling even squirmier
between her legs, and Matt's touching her boob again, and there's just so much
happening, she can't focus on anything.
All of a sudden she realizes that Matt has undone her bra somehow, and he's
sliding it off, down her shoulders, and she's so startled she doesn't even know
what to do. How did he do that?! She can barely get this thing to unfasten at
night herself -- bras are so hard -- but Matt just did it like it was nothing,
no effort at all, and she suddenly realizes that he must've done this before.
Probably he's done this a lot, with a lot of other girls, and suddenly she
hates all those girls so much, this murderous rage flooding over her for a
second. But then Matt gets her bra all the way off and he puts his mouth right
on her nipple, like that's a totally normal thing to do, and all thoughts of
other girls fly out of her head as she tries to hold in another shriek. It
comes out as this high-pitched kind of squeaking noise, and it's so
embarrassing, but oh God, what is Matt doing?
She can feel Matt smiling against her skin, and then he's sucking on her
nipple, and then pressing the flat of his tongue against it, and it's like it
goes straight between her legs, this intense, crazy feeling like she's never
felt in her whole life. It takes her a second before she realizes that she's
grabbed Matt's head and she's holding it there, her hands both buried in his
hair, and she's accidentally squirming right against his thing, and she feels
completely out of control, like her body is doing all these things without her
consent.
Matt looks up at her, his eyes dark, and then he's kissing over to her other
breast, where he does the same thing, and by now Jenna's pretty sure that she's
shaking all over -- she can't think straight and she feels dazed, and Matt's
just watching her so intently, like he's gauging every reaction. By the time he
finally kisses back up to her mouth she's so overwhelmed she can barely kiss
him back, her nipples so hard they're sore, her feeling so strange between her
legs she can't keep still, this insistent need keeping her hips shifting
irritably.
She suddenly startles, because Matt's hand is sliding into her jeans -- she
hadn't even noticed his hand moving lower, much less undoing her fly, but now
it's right there, sliding down to touch her bathing suit area over her
underwear, before she even has time to say anything. She's shocked and a little
embarrassed, because oh God, wait, is her underwear damp -- did she pee herself
without noticing or something? But then she forgets all about that because he's
pressing down, cupping her between her legs, and she lets out this strange
raspy adult moan before she can stop herself, a noise she didn't even know she
could make, and Matt's rubbing his fingers against her crotch and it's the most
intense feeling she's ever felt in her life, hot and dirty and so overwhelming,
she's so sensitive there, and her legs drop open and she says, "Oh, oh, oh my
God."
Matt groans too, like just her reactions are killing him, and he says, "God,
Jenna," and his voice is low and rough and somehow it goes right between her
legs too, oh God, what is even happening?
She's wiggling without meaning to, and then Matt's fingers are slipping under
the legband of her underwear, and she grabs his shoulders and says, "Matt," but
it's too late, he's already touching her there, and she's so wet and sticky and
his hand is just slipping over it like he's not even shocked.
"Okay?" he says, and his eyes are dark as he starts to wiggle her jeans down,
and she grabs his shoulders and doesn't know what to say. It's so, so much, she
needs a second to process this and maybe be by herself for a little while to
think, and then maybe to tell Becky and the other girls to get her head around
it. But she doesn't want him to stop, and he rubs his finger over her again,
and he hits this place that feels so good, almost painful with how good it is,
how sensitive, and she makes another little squeaking noise, her hips jerking
up into his hand.
He grins at her, her jeans and underwear halfway down her legs now, and then
his finger slips inside her, which is the most shocking thing that's ever
happened to her by a mile. Like, she knew that during sex a boy's thingy went
inside you, and she knew there was a hole there, but only sluts use tampons,
and it's not like she even knew exactly where the hole was, she didn't mess
around down there! But apparently Matt knows exactly where it is, and his
finger is in there now, and it feels so strange, thick and blunt and moving
inside her. She always kind of thought it would hurt, too, Melissa H. said it
really hurt when she tried to put a tampon in, but his finger just slid in, not
hurting at all. She guesses her grown-up Jenna body has done this before.
Matt kisses her, and his finger's still moving inside her, so this feeling is
building up every time the heel of his hand presses against her and his finger
crooks inside, and she's pretty sure she's making all this noise, but she can't
help it, her legs falling open and Matt pressing another finger into her, so
she feels all spread out and dirty, her hips jerking up into his hand because
she can't even help it. "Matt," she says, desperate and breathy, digging her
fingers into his shoulder, and it feels like something's going to happen, the
tension in her body crescendoing, and then all of a sudden it's like it
explodes, this crazy, amazing feeling bursting over her, like her whole body is
sneezing, her muscles clenching and her insides squeezing down on Matt's
fingers. "Oh, oh, oh, Matt!" she says, and she thinks she might be digging her
fingernails into his skin, and the feeling keeps going over her in waves, like
nothing she's ever felt before, like Matt's invented some entirely new thing in
the universe. Do other people know about this?! She feels like they should tell
them!
"Good?" Matt says, smiling down at her and looking pretty pleased with himself,
and Jenna nods so emphatically she almost gives herself a head rush.
"Uh huh," she says, and Matt laughs. "Matty, I've never felt anything like
that," she says, because that was so new and so strange and so amazing.
Matt kind of blinks, but then he grins at her, a little self-satisfied, and
he's like, "What, not even with Alex Carlson?"
Who? Oh, the naked man! Oh, gross. "Ew!" Jenna says. "No way, grody, I didn't
let him touch me."
Matt smiles even wider and kisses her, and she feels so sleepy now, her muscles
all going limp and satisfied, and she's aware again that she's basically naked
with Matt, but now that just feels comfortable, regular, naked with the person
she trusts most in the world. Matt starts kissing down her jaw, little light
kisses down her neck and her shoulder, and everything feels so nice. She feels
so much more grown-up than she did an hour ago.
"You wanna have a sleepover?" she murmurs, wanting to yawn, and Matt chuckles
quietly, pressing his forehead against hers.
"Sure," he says. "I'll have all the sleepovers you want."
She should really get up and go get her pajamas, get Matt a sleeping bag so
they can have a sleepover the way they always used to. She's pretty sure she
has ice cream in the freezer, and there's probably a scary movie on cable. Matt
likes scary movies. But Matt's stroking her bare hip, and she feels so cozy and
comfortable right now. She'll get up in a second.
It's the last thing she thinks before she falls asleep.
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