Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/12043332.
  Rating:
      Explicit
  Archive Warning:
      Rape/Non-Con, Underage
  Category:
      F/M, M/M
  Fandom:
      Rick_and_Morty
  Relationship:
      Rick_Sanchez/Morty_Smith, Rick_Sanchez/Summer_Smith
  Character:
      Rick_Sanchez_(Rick_and_Morty), Morty_Smith, Summer_Smith
  Additional Tags:
      Rape/Non-con_Elements, Dubious_Consent, Dysfunctional_Family, Angst,
      Incest, Grandparents_&_Grandchildren, Masturbation, Daddy_Kink,
      Voyeurism, Abuse, Sexual_Abuse, Physical_Abuse
  Series:
      Part 12 of Prompts/Secret_Santas/Short_Stories_(stand_alone_stories)
  Stats:
      Published: 2017-09-09 Chapters: 1/3 Words: 2146
****** Power Dynamics: We Belong to Grandpa's Dick ******
by FlorinaLyndis, RickSlamsTheMultiverse
Summary
     Summer overhears moaning coming from Morty's room. She decides to
     investigate.
     Wait. Is that...? Grandpa Rick…?
     *Contains: C137cest/RickMorty & SumRick/RickSummer.
     Do you like angst/being depressed? This is for you! lmao. ;)
      
     [UPDATE 2/5] Will be changing chapter 1 slightly soon, so keep an eye
     out for that. :)
Notes
     This idea has been festering in my mind for several weeks now.
     The draft was written ages ago, glad to see the story come to light.
     For those of you who read our other fics, don't worry, we haven't
     forgotten them!
     I always come up with new ideas...I have a problem...I have another
     one in mind, but I'll complete at least on of the stories (likely
     this one or "My Grandson's a Camgirl") before getting to it. Anyway,
     enjoy reading! :)
     *Hoping that Summer's inclusion doesn't scare away too many C137cest
     shippers lol. :b
See the end of the work for more notes
“God fucking - ugh, CHRIST!”
Beth was scrambling to grab everything she needed as she groaned in annoyance
with having being called into work in the middle of the night. Summer sat on
the couch with her knees pressed to her chest, arms wrapped around them to keep
herself steady as she scrolled down Mr. PoopyButthole’s Magic Tumble Bottoms on
her phone. This is always what happened whenever her mother was called into
work to perform an emergency surgery. Her phone would ring, she would
haphazardly grab her things, and she would rush out the door. This routine did
a lot to bore Summer at this point, but it couldn’t be helped. All the
adolescent woman could do was assume that that’s what adulthood consisted of.
Working day in and day out until eventually you have kids that you have to work
for day in and day out. A vicious cycle that was ingrained in Summer’s mind
since her birth.
“Summer, have you seen my ID?”
“Why do you need your ID, Mom? I mean, really, you’re literally the only person
there who’s a certified horse surgeon.”
As if Beth connected the dots in her head to make sense of Summer’s words, she
couldn’t help but laugh a bit. She’d stopped to turn around and give Summer a
light peck on the forehead, the teen practically shrugging it off as Beth
continued to be on the mad hunt for all of her work materials. Some part of her
was just hoping that she wouldn’t end up like Beth, or like Jerry for that
matter. The fact that they’d divorced was somewhat relieving, since it’d seemed
they were all tired of putting up the charade of a functioning family - at
least everyone except Jerry. Grandpa Rick’s escape was the spark that was
needed to light the signal.
Summer had interesting memories of seeing dimensions where she didn’t exist and
how much happier her parents were in those other dimensions. It was an
inevitable thought, really, but Summer eventually reached a level of apathy in
regards to it. Her parents stopped mattering to her and, inevitably, she was
turning to Morty and her grandpa to fuel her need for familial connection.
Morty made her feel needed - almost as if she were an anchor to his normal life
- while Rick made her feel safe - something neither Beth nor Jerry had ever
done for her. Seeing Beth run out the door was almost a relief as she’d gotten
up to close the door that her mother left open, locking it behind her and
sighing. Maybe it was time to see what Rick and Morty were up to.
Summer headed over to the garage to check to see if Rick was up to his usual
science-y shenanigans. Surprisingly, she’d found no one there, and no science-
y technology to sign otherwise. Vaguely, Summer could hear creaking in the
house. It would take her a moment to figure out where it was coming from, and
she would end up connecting the dots and finding that the sound was coming from
upstairs. It sounded like a bed… And - almost as if in a rhythm - she could
hear the sound of… slapping?
Leaving the garage and quietly closing the door behind her, Summer made her way
over to the stairs, now hearing more in addition to the slapping. There was a
wet sound that made her cringe a bit with every bit of repetition that followed
it, and the strange follow up of Morty groaning was enough to make her shiver
with disgust. Did her little brother think that he was alone at home or
something? Ever since that “Gwendolyn” incident, Summer was inclined to believe
that Morty was just some sort of sex fiend, so it wasn’t as if she hadn’t
understood his need to release every five seconds - but come on. At least make
sure you’re home alone. The next thing she’d heard as she made her way up the
stairs though was what caught her off guard. It was muffled, but she could just
barely make it out in a way that made sense.
“G-G-Geez, y-you don’t have to g - aaaah - o so hard… I-It hurts...”
Summer’s eyes widened as she’d gotten on all fours to slowly sneak her way up
the stairs, trying to make as little noise as possible and avoid all of the
creaking spots on the staircase. With every moment that passed and every foot
closer she was to Morty’s room, she could more clearly make out the sounds.
There was a distinct grunt she could hear now, followed by the sound of a much
louder, much more deliberate slap and a scream of pain from Morty.
“Sh-Shut the ffffuck up! I’ll go as h-hard as I - urp - d-damn well puh-lease!”
Grandpa Rick…?
The sound of a grown, old man in drunken stupor - and a voice that Summer would
never mistake for anyone else’s.There was more urgency in her movements now, as
she’d made her way to Morty’s room and opened the door just a crack, careful to
not allow the hinges to squeak. Thankfully, Morty’s room set up had never
changed too much and she was able to get a good peek at what was happening on
Morty’s bed without alerting the who was inside. Granted, all she saw was the
back of Rick’s coat and the movement of him thrusting his hips. The sounds
intensified to complete clarity now, the wet sound developed into a very moist,
squelching note that invaded her senses, along with the smell of sex and
alcohol that seemed to follow her grandpa around without fail. Only - this time
- it was intense and settled into her nostrils without missing a single beat,
causing her eyes to water.
“G-Geez, y-y-your anus has gotten r-reeeeally loose now. You must really love
having grandpa inside you, don’t you? Y-you little slut. It-It’s like you’re
body’s begging me to fuck you. T-tell me how much you like d-daddy’s cock in
your hole, Morty.”
“I… I-I-I hate it…”
Summer could see Rick’s hand raise up as he’d given Morty another firm slap,
Morty crying out in pain and Summer wincing as if she could feel it on her
face. The sound of Morty sobbing rang clearly and Summer was just about to
barge into the room to put a stop to all of this when Rick’s next words also
entered her ears and she was forced to reconsider her options.
“What, bi - eeeeh - tch? That’s not what the p-p-precum streaming from your d-
dick is saying to me! It tells me how mu - urp - ch you love this.”
Was Morty really into this? Was this some sort of kinky play that they did?
That wouldn’t surprise her too much, since they always went on weird alien
adventures together - no telling what they actually did when they were gone for
days at a time. But at the same time, there was this nagging feeling at the
back of her mind as she was watching this all play out - and also a yearning
sensation between her legs. Something Summer always pushed to the back of her
mind as well was the fact that she was also very into her grandpa. A father
figure that stepped in when Jerry failed, she’d had a bit of a complex about
it. Feelings began bubbling to the surface as she’d bit her bottom lip and
reached down between her legs, beginning to lightly press her fingertips to her
clothed crotch. There was a heat radiating from her body and she found herself
in need of her own relief.
“P-Please Rick, i-i-it hurts…”
Hearing Morty’s pitiful begging started getting to Summer as she’d thought
about Rick’s dick pushing into her, spreading her walls out and filling her up
- all the way down to the base, even. A chill gripped her and she’d began to
shiver, breathing a bit shallowly as she began pushing her fingers more firmly
into her covered nether regions, stroking along the slit and pushing the soft
fabric of her panties against her clit. This caused her to breathe in sharply,
quickly putting a hand over her lips to stop herself from making too much
noise. Thankfully, the other two hadn’t noticed and she’d continued bearing
down on herself as the sound of Rick’s cock plunging into Morty began to pick
up its pace.
“M-Maybe I’ll finish faster if you - uuuurp - beg me t-to.”
“I-I-I… J-J-Just hurry up a-and c-c… cum inside me… P-Please...”
Summer began to imagine the feeling of Rick’s length inside of her, fingers
slipping under her clothes now as she began to stroke and push against her bare
flesh, stifling moans with her other hand and biting her lower lip for good
measure. She leaned against the doorframe and kept her eyes on Rick and Morty,
stimulating herself in the same rhythm as she watched the rise and fall of
Rick’s hips against Morty’s slender body. Her yearning only grew to a fiery
pitch as she hooked her fingers and pushed her middle and ring fingers inside
of herself, pumping them in and out of herself to stimulate her insides while
pressing her palm against her clit. It had been awhile since she had
masturbated to this degree, wanting to much for her Grandpa Rick to use her
like he was with Morty. The overbearing father figure in her life putting
himself in a position of power over her was turning her on, even despite the
taboo and her conscience pushing against those thoughts.
God damn it, why is this so fucking hot?! Fuck, I want Grandpa’s dick too,
Morty! You don’t know how lucky you are to have him all to yourself all of the
time!
As it seemed, her conscience was losing and she started to lose all reason,
pushing her index finger in with the other two to really fill herself up and so
that she could imagine just how big Rick was inside of her. Rick’s hips began
moving faster, though, and she could see that he was on the verge of finishing
up inside of her little brother, her fingers matching that pace as best they
could. Hopefully she could catch up and she could finish up at the same time as
him.
“H-Here you g - aaaah - o, Morty. Daddy will f-f-fill you up, ju - urp - st
like you asked!”
Summer began to tear up more as she imagined Rick saying that to her and she
couldn’t hold back any longer, her palm pressed firmly to her pretty pink
button as she’d started vigorously rubbing against it and pushing her hips to
really increase the stimulation. Morty’s grunts eventually turned into tired
moans, the squelching feeling her ears as she watched Rick’s body move to a
more dominant position now, really pressing Morty down against the bed and the
tears began to stream down Summer’s cheeks as she was letting herself go to her
lust and her pleasure. There were loud bumping sounds accompanying the wet
thrusts of Rick’s cock in Morty’s tight asshole - the house beginning to
vibrate with everyone drowning in every little sensation.
Oh, Grandpa Rick, I want you so bad… fuck me, fuck me, fuck me, please
Granddaddy, just fuck me!
“OH, FFFFFFUCK!”
As Rick roared, Summer orgasmed harder than she’d ever thought she could, eyes
rolling upwards as she rode out her ecstasy, hips thrusting against her fingers
and hands as she could hear Morty moaning and the sound of the thrusting having
stopped, only heavy breathing from Rick and Morty to be heard now. There was a
lull to all of the action now before Summer could recover from her release,
taking a slow - but deep - breath to try to regain her thoughts. Remembering
that she didn’t want to get caught, she’d pulled her fingers from out of her
pants and slowly crawled away from the doorway. As she left, she could hear a
distinct “pop” from the room, having a feeling that it was the sound of her
grandpa pulling out of Morty’s asshole.
Summer made her way into her room and crawled onto her bed, curling up and
letting herself breathe normally now, trying to let air circulate her body and
refill her brain with oxygen. As the gravity of everything that had just
happened fell upon her, though, she began to feel tired - physically fatigued
from that huge orgasm and mentally fatigued with what she’d just discovered. As
all of the weight began to register, she felt herself start to fall asleep -
the late night catching up with her as well. All she could think about at this
point was that she’d let herself adore the thought of Rick’s cock deep diving
into her pussy. With that, she let herself fall into dreams and indulged those
thoughts all the way to the next morning.
End Notes
     This story was inspired by a SummerxMorty (though there isn't any
     SumxMort in this fanfic) comic I saw on tumblr a long while ago,
     however, I'm not sure if the person has a deactivated account,
     because I haven't had any success finding the comic again....If I
     find it, I will link it here as an update. :)
     On another note, be sure to check out our other fics! You might enjoy
     those too if you haven't read them yet! :D Thanks again for taking
     the time to read this and any other fic. Comments/kudos/subs/etc are
     all appreciated. ^___^
     Find me on Tumblr @ FlorinaLyndis
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