
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/5276237.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      Other
  Fandom:
      Supernatural
  Relationship:
      Castiel/Tentacles
  Character:
      Castiel
  Additional Tags:
      Tentacle_Sex, Extremely_Underage, Oviposition, Belly_Kink, Buckets_of
      come, Inflation, Wing_Kink, Supernatural_Kink_Meme, Fledgling_Castiel,
      Dubious_Consent
  Collections:
      Tentacles
  Stats:
      Published: 2015-11-24 Words: 2299
****** Castiel's First Adventure ******
by stria_terminalis
Summary
     Fledgling angel Cas explores beyond the safety of the Nest, wanders
     straight into the home of a tentacle creature, and has a fantastic
     fucking time.
Notes
     This is an SPN kink meme fill but I cannot for the life of me find
     the prompt - if you recognise it, please let me know, and I'll link
     it up properly! It was a great prompt and stuck with me long enough
     to make this happen.
     Kinks and warnings are in the tags - bear in mind Cas is really
     young, like, 6, so please don't read if that might offend or upset.
     Dubcon is tagged because of the inability of a minor to give informed
     consent to an ancient nonverbal tentacle-wielding entity from another
     realm, but both parties are happy with the situation.
Youtry keeping to the Nest with older siblings who bent the rules like Gabriel,
told stories like Michael, and set an example like Lucifer.
Granted, this probably isn’t what Gabriel had in mind when he’d turned a blind
eye to Cas creeping from the Garden under the cover of an eclipse, but that was
the leastof the fledgling angel’s current concerns. The forests between Heavens
had grown lusher and thicker as he’d stumbled onward, each new sight a world
away from the neatly-kept realms of the Nest, drawing him deeper with
curiosity. Cas’ wide, blue gaze had swept the canopy above, his fluffy,
underdeveloped wings batting idly across his back as he walked, and the
firefly-lit cave behind the waterfall had looked like a great idea at the time.
How was heto know that someone else lived here?
At least that someone is friendly, Cas thinks, the creature cradling him in a
tangle of slowly shifting tentacles. The little angel touches them
experimentally and they touch him back with equal measures of enthusiasm,
coiling around his small body and stroking velvety trails across pale, soft
skin. He’s very lucky, he thinks, to have made such a gentle friend on his very
first adventure. Michael is always warning of awful monsters which lurk in the
realms beyond the garden in wait of fledglings to claim for their own, but all
this creature seems to want is to play with him. Its tentacles are beginning to
leak a warm, sweet fluid, and all the touching and sucking is starting to make
the angel’s body feel really funny. Cas stops touching the creature back - it’s
coiling contentedly around his wrists, anyway - and watches its limbs move
across his tummy and his thighs and his chest with innocent curiosity, his full
lower lip between his teeth.
Even his nipples feel funny. They’re usually velvety peaks, barely visible even
against the pale of his chest, but now they’re hard buds that tingle whenever
the tentacles play and suckle at them. Between his chubby, soft thighs, the
fledgling’s small dick has gone stiff and it’s standing straight up, and Cas
gasps softly as the creature starts to play with that, too. He’s never even
touched himselfthere before, never thought to. It’s barely a cock - more like a
clit, really, just a couple of pink inches resting against his balls - and his
new friend seems to delight in gently flicking it to watch it bounce right back
up. It then lays the underside of a thick tentacle down on top of the angel’s
cocklet, pressing it flat against his belly, and begins to flex its suckers
back and forth.
Cas squeals and squirms, his big blue eyes gazing in wonder between his legs,
because that feels amazing, like something wonderful is happening in his
private parts, and he starts to push his dick up into the wet sucking feeling.
His small body starts to tremble with the pleasure of it, and his wings shiver
as they spread out involuntarily across his back. He’s so distracted by the
sensation that he barely registers the drooling tip of one of the tentacles
begin to probe behind his balls until it’s pushing insistently between the soft
globes of his bottom.
The little fledgling’s pale cheeks flush, his mouth quivering and dropping open
at that first nudge. It’s wet, he notes - reallywet. The tentacle’s slippery
coating is so thick that it leaves the delicate pink valley between his cheeks
dripping, the fat head gently massaging it in circles over the angel’s asshole.
His hips push back into it helplessly. It feels so strange - sostrange, making
his tummy feel all hot - but so good that he doesn’t even stop to wonder
whether it’s something he should be trying to stop or not. Perhaps this is
normal outside of the Garden; perhaps this was what the rest of the Host mean
when they tell the fledglings that they have to leave each day to carry out
God’s work.
Cas squeaks as the thing pushes firmly at his opening, its tip wiggling softly
back and forth. He suddenly feels quite vulnerable there, and very sensitive.
The angel can feel his hole squeezing and pushing in confusion, the movement
all sticky and soaked from whatever is coming out of the tentacle. Some of it
is probably going inside him. Cas has never thought of his inside parts as a
place where things could gobefore, but now it’s the only thought he can focus
on.
The next push is muchbigger and Cas lets out a little whine when his butt
starts to hurt. The creature hesitates; the tentacle curls away and gets
replaced with another - slightly slimmer, this time, and without as many big,
bumpy veins along its length. It’s much more comfortable. Cas sighs and let his
wings flutter as it continues to coax him open. This time, when the creature
penetrates him, it’s more like a strange, nice feeling inside his butthole. The
young angel’s back arches and he makes a surprised, happy noise, his small pink
hole fluttering weakly around the slippery thing as it starts to dip shallowly
inside him. He wants it to keep touching his special inside places forever. Cas
begins whimpering as it starts to glide deeper, spreading its warm, slick
fluids into his silky channel.
After a few moments of that deeper exploration - just a couple of inches, but
so much for the little angel to take - the fledgling feels a weird tightness in
his butt. The tentacle is pushing slightly too far inside now and he bites his
lip, tears springing to his eyes until they sparkle blue. Just as he’s sure
that he’s about to start crying, his new friend moves gently again, feeding
gentle, smooth thrusts into his asshole until Cas is boneless with pleasure. It
isn’t trying to hurt him, he’s sure of that. Just trying to make his inside
parts feel nice. He isn’t stupid; the huge tentacle from earlier - its breeding
tentacle - hovers beside him, and he knows it still wants to try and squeeze
inside of him. Cas gazes at it with heavy-lidded eyes, moaning softly as the
creature continues to pleasure him. Even though it had hurt before, he can’t
help liking the idea, and he sort of wants to make it happy, too. It looks
pretty - a dusky purple, with a plump, blue-ish head that constantly dribbles -
and Cas stretches a curious hand out to stroke along its length.
As he pets it, the breeding tentacle trembles with delight and slides up close,
winding itself contentedly around his forearm as it goes. It approaches his
mouth and bumps his lips. Cas giggles; it’s trying to give him a kiss! Licking
up the sweet taste from his mouth, he kisses it back. Each of their exchanged
kisses deepen until Cas’ plush lips are stretched out and the fat tip is
leaking heavily across his tongue. His mouth is far too small to take any more,
but he leaves enthusiastic kitten-licks over each inch that he can, and the
creature writhes delightedly, wrapping him in limbs and burying itself deeply
inside his channel in response. Cas sticks his ass out and whimpers happily,
his wings stretching and flaring out automatically in response to a good, firm
mating.
Both of the tentacles then carefully withdraw themselves from him, the breeding
tentacle spilling a heavy dollop of fluid across the angel’s lips as it goes,
and then slithers down his tiny body to nudge the fledgling’s freshly fucked
asshole. It’s adorable, wet with slick, and holds the prettiest little gape -
just barelyfailing to close up when Cas tries hard to squeeze it shut. It feels
so empty and loose, like his hole has gone weak and useless from all the
touching. As he squeezes, a long, slick line of clear fluid spills over. The
breeding tentacle nudges once before pushing gently but firmly, worming its way
into the baby-pink opening and sinking blissfully into the fledgling’s velvety,
plush insides.
A sharp, shocked cry rings around the cave as the creature lodges itself
inside, its unoccupied limbs pushing in the opposite direction so that the baby
angel is well and truly impaled. It’s big, reallybig, and Cas bites his lip and
curls his hands into fists, letting the tentacle wriggle up further into his
belly than ever before. If anything goes badly, he thinks, he can always ask
one of his siblings to heal him, and it feels so wonderful to have his butt
filled up again. He feels his abdomen tremble as it struggles to accommodate
the breeding tentacle, and a thick pulsing as the thing flexes to move steadily
deeper, constantly spurting fluid to slick the way. He lovesit. He lets his
wings spread and his body go limp with pleasure, sighs, and spreads one palm
just below his belly button. Beneath the soft skin, he swears he can feel the
slightest hint of movement. By the time the tentacle has begun fucking back and
forth inside his gaping butthole, the young angel is gasping and crying with
delight, his tiny prick twitching against his tummy with its first ever baby
orgasm.
Weak and overwhelmed with pleasure, Cas lifts his head to gaze between his
sticky thighs, where the breeding tentacle is still slickly pounding, and his
eye is caught by movement further up its shaft. A series of thick masses are
travelling through its middle, their ovular bulges obvious, and begin to
approach where the tentacle is fucking him open. He wonders if they are going
to try and get inside him, too. He thinks he already knows the answer.
Cas is a brave little angel, and he refuses to let the tears in his eyes spill
over as the tentacle pumps the first mass, inch by slow inch, into his
quivering body. At first it refuses to budge - he’s soaking wet, but just too
small - but the creature pushes until it succeeds in forcing his delicate
opening to take something so, so much bigger than it was ever supposed to take.
The egg pops inside and begins travelling up into his guts. Cas whimpers and
holds his belly in both hands, his butt aching. His inside places feel ruined,
but he wants to be good for his friend.
The next egg, he thinks, he’s going to try to stop going inside, just to see if
he can, because he can see how full the tentacle is, and he’s surehe’ll burst
if they all try to fit. He tries his best - reallysqueezes, his small wings
flapping once or twice with the strain - but his asshole is far too wrecked to
push properly, so that one gets pumped up into him, too. He can feel the
breeding tentacle’s solid weight pulling at his poor hole as the third and
fourth eggs are laid inside him, but it’s starting to feel good again. By the
seventh, the mass of eggs and fluid has the little angel’s stomach swollen out
beneath his hands. It’s heavy, too, and constantly pressing on a new, special
place inside his bottom which floods the fledgling with pleasure and coaxes a
second dry orgasm from his small, stiff dick. Cas cries out and squirms from
it, taking another three eggs before his butt has even finished spasming from
the climax.
He’s so full now that he’s not even sure how he’s going to have the strength to
stand up afterwards. The creature gently caresses his soft penis as it lays egg
after egg in the fledgling’s hugely swollen little belly, cushioning each one
with a healthy gush of thick, creamy liquid which is stuffing him as full as
the eggs are. Cas wails in pleasure as the fullness in his bloated tummy
unexpectedly wrings another orgasm from him, and then gasps in surprise as the
breeding tentacle gently withdraws, only pausing to plug up his rectum with a
sticky, solid seal which will dissolve when the eggs have hatched and Cas is
ready to deliver the offspring.
Everything goes quite quiet as the breeding comes to a close, the young angel’s
slim chest heaving as he catches his breath. He can’t stop looking at where his
belly is stuffed full, the swell of it round and huge, skin taut like he’s
about to burst. The creature gently settles him to the floor of the cave; he
sways with his new weight and shaky legs, but it catches him with a few
tentacles, nudging him upright. The angel takes a couple of stumbling steps.
He’s surprised how good he feels, actually, muchbetter than he ought to, as
though all the stuff that the creature pumped into him is lighting him up from
the inside.
Cas reaches behind himself with one shaky hand and touches his gaping hole,
pushing two little fingers inside and tentatively brushing the place where he’s
been plugged. It’s really strong - it’ll easily hold long enough for him to get
home. The angel heads out beyond the waterfall and back into the forest,
wondering what his siblings will think.
He must look a mess. His wings hang limply from his back, trembling from
overstimulation, their fluffy black feathers damp and slick from sweat. His
hair is much the same - messy, and plastered to his forehead - and his pale
skin is painted with swathes of leaked juices that gleam as he walks. However,
nothing beats his heavily pregnant belly. Obscenely large on such a tiny body,
Cas has to carefully cradle its weight in both his small hands as he walks.
He can’t wait to tell everyone how he got it. He’s so proud that he’s got a
story of his own, now.
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