Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/13864131.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      F/M
  Fandom:
      Riverdale_(TV_2017)
  Relationship:
      Archie_Andrews/Betty_Cooper
  Character:
      Archie_Andrews, Betty_Cooper, Jughead_Jones
  Additional Tags:
      Alternate_Universe_-_Canon_Divergence, Future_Fic, Smut, Humor, Friends
      to_Lovers, Masturbation, Mutual_Masturbation, Walking_In_On_Someone, I
      don't_actually_mention_their_ages_but_tagging_it_as_underage_just_to_be
      safe
  Series:
      Part 8 of prompts_filled_(barchie)
  Stats:
      Published: 2018-03-04 Words: 2796
****** i mean i could, but why would i want to? ******
by arysa13
Summary
     Archie goes over to Betty's to study, but he accidentally walks in on
     her doing something he wasn't supposed to see.
      
     prompt: Archie comes over to a now single Betty's house to study and
     on his way to her room, overhears her 'taking care of some business'
     alone. The name she whispers in the throes of passion has him
     SHOOK!!!
Notes
     I heard you guys like smut?
Archie opens his eyes reluctantly, feeling stiff and groggy. He really hadn’t
meant to fall asleep, but somewhere between getting home from school and
meeting Betty to study he’d closed his eyes for a split second and one thing
had led to another.
He grabs for his phone, squinting at it, his eyes still not having adjusted to
him being awake. 5:37pm. Shit, he was meant to be at Betty’s over half an hour
ago. She promised him she would help him with his biology homework. She’s
totally going to think he flaked.
Sure enough he has two unread text messages from her.
Betty, 5:06pm: Hey, are you still coming over to study?
Betty, 5:25pm: I guess that’s a no.
Archie throws himself out of bed, swearing under his breath. He throws a
cursory glance out his window, but Betty’s curtain is closed. He gathers up his
books and taps out a hasty message to Betty.
Archie, 5:38pm: Coming now
Archie tugs on his shoes and races down the stairs and out of the house. He’s
next door in less than a minute. He rings the doorbell but he gets no answer.
Glancing over his shoulder he realises there is no car in the driveway, which
means Alice is probably not home, and Betty is probably in her room and can’t
hear the doorbell. Archie turns the doorknob and it swings open, so he strides
inside.
He bounds up the staircase and heads straight for Betty’s room. He can hear
music playing through the door, and it doesn’t even occur to him to knock. He
pushes the door open, and then stops dead in his tracks when he sees Betty.
She’s on her bed, and she clearly hasn’t heard him come in, because her eyes
remain closed. She’s technically dressed, but her skirt is hiked up around her
waist and her panties are around her knees. Her thighs are spread, her bare
pussy on display, and she lets out a soft moan as her fingers slip in between
her folds, playing with herself.
Archie stands frozen, his jaw hanging open. He knows he should leave, pretend
he never saw anything, but his feet won’t seem to move. His heart hammers in
his chest, and his cock swells in his jeans. Betty moans again, arching her
back, and fuck, she looks so beautiful like this.
“God,” she murmurs, her fingers moving more frantically. She sounds absolutely
wrecked, her face contorted in ecstasy. “Archie.”
Holy fuck. Did she just say his name? A strangled noise comes out of his mouth
as he chokes on his own breath. It’s then that Betty realises she isn’t alone.
Her eyes fly open, panicked. Her eyes land on him, and she quickly pulls her
skirt down to cover herself.
“Archie?” she exclaims, aghast. “Oh my god!” Her face is bright red, and Archie
is sure his own face is the same colour.
“Betty, I’m sorry—” he starts. She grabs a pillow and throws it at him.
“Get out!” she cries.
“Okay,” he says. That’s a reasonable request. “I’m sorry!” he says again as he
pulls the door closed. He leans against it. “Betty, I’m really sorry, I swear I
didn’t mean to see anything!” he calls through the door.
“Go away, Archie!” she yells.
“You’ve got nothing to embarrassed about—”
“Leave me alone!”
Archie cringes. “Okay!” he calls. “I’m still really sorry!”
He decides leaving is probably best. She’s clearly embarrassed and needs time
to recover. He’ll text her later, or in the morning with more apologies. He
races home and heads straight for his room. He pulls the curtain shut and
reaches for his throbbing cock. He shouldn’t do this, he knows. But he can’t
help it.
When he closes his eyes the image of her, legs splayed, touching herself,
moaning his name, is burned into his brain. It’s not like he’s never thought of
Betty in a sexual way before. It’s just that he always manages to shut those
thoughts down before they went too far.
Now, though? It’s impossible not to think of her like that. Especially when,
until today, he’d been convinced she was still hung up on Jughead. But hearing
her say his name like that, desperate, wanting… he needs to hear it again, and
this time he wants to be the one making her say it.
His hand slides into his boxers, gripping his hard cock. He imagines it’s his
fingers touching her, instead of her own. He rubs his cock until he comes,
panting heavily, thinking of Betty the whole time.
                                       -
He sends her another apology text when he wakes up, but she doesn’t respond,
and she leaves before he can even offer to walk her to school. Once at school,
she steadfastly avoids eye contact with him, and flees in the opposite
direction if she sees him coming.
“What’s up with Betty?” Jughead asks him after Betty enters the common room and
then, upon seeing it is already occupied by Archie, promptly leaves again,
Veronica in tow. Archie chews his lip.
“I may have seen something I shouldn’t have,” he admits. Jughead and Betty
broke up months ago now, but he’s still not sure if this is something that’s
okay to discuss with Betty’s former boyfriend.
“Like what?” Jughead snorts. “You walk in on her having sex?”
“Close,” Archie grimaces. Jughead’s eyes widen.
“You mean she was mastur—”
“Shh!” Archie glances around to make sure no one is listening to them. Betty
would kill him if she found out he told Jughead. He doesn’t mention the part
where she moaned his name. That part is his, and his alone. “Yes. She’s gonna
get over this, right?”
“I dunno, man” Jughead shrugs. “You might need to even the playing field.”
“Even the playing field?”
“Return the favour,” Jughead grins. Archie isn’t sure if Jughead is joking or
not. He’s also not sure it’s a totally dumb idea. He could suggest it to her,
and if it isa dumb idea, at least he might get her to laugh at him, and that’s
a good start.
“Thanks, Jug,” Archie says, leaping up.
“Wait, you’re not actually going to do it, are you?”
“Gotta run,” Archie says, skipping out of the common room. He ignores Jughead
calling out after him.
                                       -
Archie knows Betty can’t avoid him forever, and he manages to catch her after
school, ambushing her at her locker. She still ignores him, so he says nothing
while she gathers her things into her backpack and shuts her locker. She
brushes past him, beginning her walk home, and Archie falls into step beside
her.
“Go away, Archie,” she finally says as they leave the school grounds. “I really
don’t want to talk to you right now.”
“Betty, I’m really, really sorry,” he apologises again. “I was just coming over
to study, I didn’t know—"
“I know, Archie,” Betty cuts him off. “But it’s humiliating, okay?”
“Why?”
“Why?” Betty repeats, incredulous. “Because, Archie,” she says through gritted
teeth. “That kind of thing is meant to be private. God, how long were you even
standing there? And you heard me say…” she trails off, her face burning red.
“It’s okay if you were thinking about me,” Archie says. He licks his lips. “I
think it’s flattering.”
“Oh my god, shut up!” Betty groans, covering her face with her hands. Archie
can’t help but grin.
“I’m serious,” he says.  “I mean, I think about you.”
She whips her head around to face him. “You do?”
“Well, I do now,” he admits. Betty groans again, turning away and speeding up
her pace to get away from him. “Betty, Betty, wait!” he says, he reaches for
her and she slows down, allowing him to grab her shoulders and spin her to face
him. They’re stopped in the middle of the sidewalk, fifty metres from home.
Betty’s eyes are glued to her feet.
“Betty, look at me,” Archie says. Betty slowly lifts her head, looking at him
with a pained expression, her face still bright red. “I only didn’t think about
you that way before because I thought it would be disrespectful to you, and
besides I thought you were still in love with Jughead. And I’m not judging you
in the least, or laughing at you. I thought it was really hot.”
“This isn’t making it better, Arch.”
“Okay… well,” he hesitates. “What if we even the playing field?”
“What?”
“I’ll, you know… jerk off in front of you,” he says. He immediately regrets it.
It was meant to come off as funny at the very least, but now he wonders if it
just sounds creepy.
But then Betty says, “Okay.”
“Wait, what?”
“I want you to do it,” she says. Archie stares at her. Honestly, he hadn’t been
expecting her to say yes.
“Okay,” he says.
“Okay.”
Betty starts walking again, and Archie walks beside her. He’s nervous now, and
he clings to his backpack straps for comfort.
“So…” he starts. “How are we going to do this?” he asks.
“Let’s just go to my place right now,” Betty says.
“Alright,” Archie agrees. He follows her to her house and up to her bedroom,
neither of them speaking. His throat is too dry and his heart is beating to
erratically. Is this really happening?
Betty shuts her bedroom door, locking it this time. Archie drops his backpack
to the floor.
“Where do you want me?” he tries to joke. Betty spins to face him.
“Um. Bed?” she shrugs. She looks just as unsure as he feels. Archie slips his
shoes off and heads for the bed. He undoes his jeans and pulls them off too,
leaving him in just his shirt and underwear. He makes himself comfortable while
Betty stands there watching him, wringing her hands.
“Are you sure you want me to do this?” Archie asks. Betty nods. Butterflies
swarm in Archie’s stomach. It’s not that he doesn’t want to go through with it.
He’s just worried about Betty’s reaction. What if she laughs at him? God, what
if he can’t get hard? That would be humiliating.
“Should I…?” he starts, reaching for the waistband of his boxers. Betty bites
her lip and nods, before perching herself on the end of her bed, on her knees,
facing him. Archie hooks his thumbs into the waistband of his boxers and pulls
them down slightly. He keeps his eyes on Betty as he pulls his cock out,
gauging her reaction. Her eyes widen a little, but other than that she remains
expressionless. At least she isn’t laughing.
He strokes himself, and his mind flies to the image of Betty from last night,
moaning his name. His eyes flutter closed, and he needn’t have worried about
not getting hard, because the response from his cock his almost instantaneous.
He rolls his thumb over the tip, feeling the precum gathering there, using it
to lubricate his cock as he wraps his hand around himself, allowing the touch
of his own hand to stimulate himself. He groans, picking up the pace, feeling
more and more desperate for friction.
His curiosity gets the better of him then, and he opens his eyes to see if
Betty really is watching him, to see if he can tell what she’s thinking. His
cock jumps when he sees her, her face flushed, her hand between her legs, up
her skirt, and he can see her just gently rubbing the outside of her panties
with her fingers. She stops when she sees him looking, cringing in
embarrassment.
“You can touch yourself if you want,” Archie says, his voice strained from
desire. “If it’s turning you on.” It’s not that he thinks she wants permission,
per se, but he wants her to know he’s not going to think she’s disgusting or
weird if she gets off to him getting off. She looks unsure at first, but as she
continues to watch him jerk himself off her hand gradually drifts back between
her legs. She hikes her skirt up and pushes her hand into her panties.
He can’t really see what she’s doing beneath the pink cotton, but just the
knowledge that she’s fingering herself there in front of him gets him closer to
release. He hears Betty whine softly as she teases herself, and it makes him
moan out loud.
“Betty,” he says breathlessly. “What are we doing?”
“What do you mean?”
“Why the fuck are we touching ourselves when we could be touching each other?”
“I have no idea,” Betty says, and then she surges forward at the same time as
Archie does, their lips colliding. Betty fists her hands in Archie’s shirt,
clinging to him like her life depends on it, sighing softly at the touch of his
tongue against hers. Archie slips his hands under her top and she climbs into
his lap, pressing his cock against her panty-clad pussy. Archie groans against
her mouth as she grinds against him, and he moves his hands from her waist to
pull her panties down.
“Archie,” Betty says, and Archie loves the way she says his name with such
desperation. “I don’t have any condoms.”
“Neither do I,” he realises. “It’s okay,” he says. “We just won’t do that.”
Betty nods. She cups his face, and he looks into her eyes, her pupils blown,
full of want, her lips swollen from kissing him, her hair coming out of her
usually neat ponytail. He’s pretty sure he’s in love. He surges up to kiss her
again, and she wraps her arms around his neck, kissing him back while she lets
the underside of his cock slide against her wet folds, rubbing against her
clit. Without a condom he can’t penetrate her, but they can still make each
other feel good.
“God, Arch,” Betty says, as Archie drops his head to kiss her neck. “I’ve
wanted this for so long.”
“Me too,” Archie says, between kisses. Betty picks up the pace then, and Archie
rocks against her, feeling the pressure build, knowing he’s getting close.
“Betty,” he groans. Betty just whimpers in response, rolling her hips against
him. Archie feels like he’s about to explode, and he can’t hold out any longer.
“Betty, I’m sorry, I can’t—” he starts, but he cuts himself off, moaning as he
comes, dropping his head to her shoulder. He shudders against her, already
feeling guilty.
“It’s okay, it’s okay,” Betty assures him. “I’m almost there.” She slips her
own hand between her legs to finish herself off.
“Here, let me,” Archie says, and she lets him replace her hand with his own,
and he circles her clit with his thumb, and rubs it until she comes, gasping
for breath, rocking her hips to press her clit harder against his fingers. She
collapses against him when she’s done, breathing heavy.
“Arch,” she whispers, so softly he wonders if he imagined it. He doesn’t
respond, just lets her catch her breath. After all, he’s still catching his
own. She shifts back, remaining in his lap but just enough to look at his face.
“What’s wrong?” he asks her.
“Is this going to make things weird between us?” she asks him.
“No, Betty, of course not,” he says. He frowns. “Unless… was this just a one
time thing?” he asks.
“Do you want it to be a one time thing?”
Archie shakes his head slowly. “I want to be with you, Betty,” he tells her.
Betty smiles bashfully, and Archie grins. She presses her nose against his and
then pecks him on the lips.
“We should get cleaned up before your mom gets home,” Archie whispers. Betty
nods, rolling off him. It’s only then that she notices his come on her skirt
and thighs, as well as on her bedspread. Her eyes widen.
“Oh god,” she says. “How am I going to explain that to my mom?”
Archie laughs at her horrified expression. “It’s fine, Betty. We can get it
clean before she notices. I know all the tricks.” He winks at her and she rolls
her eyes, giving him a gentle shove. “Come on, you love me,” he says playfully.
“Yeah,” Betty agrees, not looking at him. His heart lurches.
“Yeah?” he swallows. Betty squints at him, and nods shortly.
“Me too,” he says quickly. “I love you too.”
Betty doesn’t say anything, but he doesn’t miss the smug smile she tries to
hide from him as she gets up off the bed. “Are you going to just lie around all
day or are you going to help me?” she asks. Archie grins. What he really wants
to do is pull her back on top of him and have his way with her again. But that
can wait. They’ve got plenty of time.
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