Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/9594134.
  Rating:
      Explicit
  Archive Warning:
      Rape/Non-Con, Underage
  Category:
      F/M
  Fandom:
      名探偵コナン_|_Detective_Conan_|_Case_Closed
  Relationship:
      Kudou_Shinichi_|_Edogawa_Conan/Yoshida_Ayumi, Haibara_Ai/Tsuburaya
      Mitsuhiko, Haibara_Ai/Kudou_Shinichi_|_Edogawa_Conan
  Character:
      Kudou_Shinichi_|_Edogawa_Conan, Yoshida_Ayumi, Haibara_Ai, Tsuburaya
      Mitsuhiko
  Additional Tags:
      Loss_of_Virginity, Lolicon, Shotacon, Aphrodisiacs
  Stats:
      Published: 2017-02-06 Completed: 2017-02-17 Chapters: 3/3 Words: 8198
****** Detective Boys' Valentine's ******
by Jeffery_Mewtamer
Summary
     It's Valentine's Day, and the homemade chocolate's the female members
     of the Detective Boys have prepared have a little something extra in
     them. The boys won't know what hit them.
Notes
     Content Warning's specific to this Chapter: Sex between an adult
     trapped in a shota's body and a loli. Drugged chocolate.
     Author's notes: A little idea I came up with for Valentine's day.
     Planned as a three-shot and I hope to have the remaining two chapters
     out by the 14th, but given my track record, I've probably just jinxed
     myself and I'll be lucky to have them out in time for Valentine's Day
     next year.
***** Ayumi's Grown-up Play *****
Detective Boys' Valentine's by Jeffery Mewtamer
Chapter 1: Ayumi's Grown-up Play
Kudo Shinichi, famous teen detective shrunken in an assassination gone
wrong and living under the false name Edogawa Conan, was bored. This was
a normal state of affairs given that he was at school and course work
that had been easy the first time around was utterly mind numbing the
second time around, but to make matters worse, he hadn't had a case
recently to distract him from the tedium of maintaining his cover and he
found himself on cleaning duty, which was still the most boring part of
school.
So dulled was the young detective's mind by his boredom that he failed
to realize the implications of the date and that his partner for
cleaning duty was Yoshida Ayumi. Namely, that it was Valentine's Day and
that this gave the girl who has been crushing on him ever since he let
slip he was smarter than any seven year old had any business being on
his first day of school as Conan a rare opportunity to be alone with the
object of her affections with little risk of interruption. Not that
being cognizant of these deductions even a real seven year old could
make could fully prepare him for what she had in store.
Conan is suddenly snapped back to reality from his boredom-induced
zombie-like state by Ayumi calling out, "Conan-kun!" Opening his eyes to
meet the girls own bright orbs, their noses mere millimeters apart,
barely enough space between them for the broom the boy was using to
sweep the floor, the detective wonders how she managed to sneak up on
him and from the front no less while his libido comments on how cute she
is saying any boy her age would be tripping over himself for her
attentions assuming he hadn't bought into the cootie myth before
rationality reminds his libido that he's still mentally more than twice
her age.
Regaining his composure quickly, the diminutive detective replies, "Yes,
Ayumi-chan?"
Satisfied that she finally got Conan's attention, Ayumi executes the
next step in what she's dubbed Operation: Boyfriend, declaring, "Happy
Valentine's, Conan-kun!" as she pulls a small, heart-shaped box from
behind her back and presents it to Conan. The Box is well wrapped in
metallic, pink paper and glossy, lavender ribbon, with two little
origamy birds, one pink, one blue and their neckes folded over each
other in place of a bow. Knowing Ayumi's talent for paper crafts, Conan
suspects this to be her handiwork with the origami probably intended to
be a pair of lovebirds.
Deciding it would be rude to reject the gift, Conan takes the box,
saying "Thank you, Ayumi-chan."
Much more excitedly, Ayumi urges, "Go ahead and open it!"
Deciding it would be a shame to ruin such nice wrapping but unable to
refuse the girl's request, Conan sits at his desk before carefully
searching the box's exterior, first finding the pin holding the origami
lovebirds in place and removing it, sitting the origami, the necks
apparently glued together on his desk. As the girl waits with baited
breath, he finds where the ribbon and paper were taped, the cellophane
coming off easily without tearing the shiny materials. After laying the
in-tact wrappings on the desk, Conan is left with a generic, red heart
box in his hands, which he opens to reveal about a dozen, misshapened
chocolate hearts.
"Do you like them?" Asks Ayumi.
Deducing that Ayumi made them herself and isn't as skilled in the
kitchen as she is with stationary, he answers politely, "They look
delicious, thank you very much!"
"Go ahead and try one!" cries the girl in excitement.
Placing the box on his desk and trying to politely refuse, Conan
replies, "Maybe later, I had a big lunch and wouldn't want to spoil my
supper."
Fluttering her eyelashes for extra cuteness, Ayumi cooes, "Come on
Conan-kun, they taste as good as they look." grabbing one of the
chocolates from the box, "If you're worried I didn't do a good job, I'll
even eat one first."
"That's not necess-" the detective starts, but before he realizes what's
going on, Ayumi has popped the confection in her mouth, climbed in his
lap and cut him off with a kiss. Not a kiss on the cheek as she has done
so many times before, but one square on the lips with the girl taking
advantage of his surprise and the fact his mouth was open in
mid-syllable to push the sweet off her tongue onto his.
As soon as the chocolate starts to melt on his tongue, Conan feels an
intense warmth spreading through him. Unable to remember feeling this
warm except undergoing the change brought on by APTX-4869 and it's
temporary antidotes, his first reaction is to think the Black
Organization knows he's still alive and somehow tricked Ayumi into
unknowingly slipping him a new, untraceable poison without APTX-4869's
one-in-a-million flaw, but this thought slips from his consciousness as
he realizes the warmth is pleasant rather than agonizing.
When she breaks the kiss, she asks, "How was it?" in a tone that has no
business coming from a seven-year-old's throat.
Instead of a polite answer designed to rebuff her affections without
offending, Conan answers uninhibitively, "Sweet, but not as sweet as
your lips." A tone he's only used before in wet dreams of Ran escaping
his throat before he initiates another kiss, all but forcing his tongue
down the young girl's throat. As their tongues intwine, there hands
begin roaming each other's body, though never venturing under clothes in
a display you'd expect from a pair of Highschool second years in a broom
closet, not a pair of elementary school second years in an empty class
roon.
What little of Conan's rational mind that remains, observing the
situation, but having lost the ability to control the seven-year-old
body it's been trapped in, deduces the chocolate must have been laced
with aphrodisiac, and quite a powerful one for how quickly it went into
effect and that Ayumi seems as lost to pleasure despite most likely
getting only a fraction of the dose.
It isn't long before Conan can feel his shorts tenting and something
warm and wet pressing against his tip, his rational mind's worse
predictions confirmed when Ayumi breaks the kiss and exclaims,
"Something's pressing against my kitty!" The young girl slides off his
lap to kneel before him for a better look, Conan letting out a shudder
as her tiny hand comes to rest on his bulge. Conan's rational mind
screams that they need to stop this, but is unable to voice any protests
as Ayumi unzip's Conan's fly and frees his little stiffy from his
briefs.
"So this is what a boy's thingie looks like?" asks the girl innocently,
"It looks so different from my kitty!" As she wraps her little hand
around his shaft, he knows he should stop her, but he can only moan and
grip the edges of his seat hard enough to turn his knuckles white as she
starts stroking him, "I hear there's a game grown-ups play that involves
a girl playing with a boy's thingie like this." This isn't Conan's first
time having a girl touch his penis, Ran having more than once insisted
on washing him down there when she made Conan bathe with her despite his
protests he could wash himself, but the way Ayumi is stroking him feels
so much better and he's not sure if it's due to the aphrodisiac, Ran
merely washing him instead of trying to get him off, or if Ayumi has
somehow gotten in enough practice to avoid first-time awkwardness, and
as if recieving his first actual handjob from a girl ten years his
junior wasn't enough of a surprise, he felt something press against his
tip before the head of his cock is engulfed in a wet warmness and
something rough starts swirling around his tip and something cradling
his balls.
Looking down, Conan witnesses quite possibly the most adorable sight
he's ever seen. Looking up with her big, beautiful, blue orbs filled
with love and affection, Ayumi's lips are sealed around the collar of
his cock, one tiny hand stroking his shaft as the other fondles his
balls and doing it all in a way that looks cute rather than slutty.
Ayumi pauses briefly to ask, "Do you like it?" her words barely
intelligible around Conan's cock, the sheer want to please in her words
banishing most of his guilt at enjoying this from someone half his age.
Running his fingers through her hair, her replies, "I love it,
Ayumi-chan!", causing her to try and smile around his member before
redoubling her efforts. It isn't long before Conan is shouting,
"Ay-Ayumi-chan! I'm gonna.... I'm gonna..." but before the shrunken
sleuth can finish his warning, his essence is flooding into the little
girl's mouth. Without losing a beat, Ayumi swallows most of Conan's
seed, leaving only a little bit on her tongue.
Licking her index finger and rubbing the viscous liquid between thumb
and forefinger, commenting aloud, This stuff is nothing like pee. I
wonder what it is?", but before Conan can recover from his climax enough
to answer her question, a unfamiliar tingling in Ayumi's girlhood draws
her attention to a different mystery.
When Conan comes to his senses, he is greeted with an even cuter sight
than that of Ayumi playing with his genitals. There she is, kneeling on
the floor, her face red and screwed up in pleasure aond concentration,
her skirt balled in one little fist as her other hand vigorously rubs at
her panty clad girlhood.
As his brain struggles to comprehend the sight of a seven-year-old
masturbating, all Conan can say is, "Ay-Ayumi-chan, Wh-what are you
doing?"
"Co-Conan-kun!" shouts Ayumi, "My kitty feels strange, but rubbing it
isn't enough!" Laying on her back, she removes her panties, exposing her
tiny, hairless slit to Conan's eyes. Her blush deepening at being so
exposed, she struggles to say, "Co-Conan-kun! I think, I think my kitty
wants you to I think it wants you to lick it!"
Finding her pleas irresistable and knowing it would be rude to not
return the favor for the blowjob, Conan forgets about the difference in
their mental ages and crawls over to Ayumi. As he gets a good look at
her girlhood, he can't help noticing how it differs from what he's seen
of Ran's during bathtime. As he expect, Ayumi's is much smaller, but
another major difference is that, where Ran has a rather thick bush of
dark brown pubic hair she has to keep trimmed, Ayumi's is completely
bald, which Conan decides makes it much cuter before lowering his head
to the girl's folds and spreading her nether lips.
As Conan admires her pretty pink pussy and inhales deeply of little girl
scent, Ayumi squirms and whines needily, "Do-Don't just look at it!
Ple-Please lick my kitty! Do-Do it before I go crazy!" Needing no
further encouragement, Conan buries his tongue in Ayumi's folds, the
young girl clapping both hands over her mouth to avoid drawing attention
with how loud her moans are.
After several minutes of Conan running his tongue up and down her slit,
flicking it across her tiny clitty, and even dipping it inside her as
far as he dare without risking tearing her hymen, Ayumi can feel a
sensation both alien and familiar building deep in her belly.
"Co-Conan-kun, It....it kinda feels like... like I have to pee. Really
badly!" but Conan only redoubles his efforts, knowing that means she's
close to cumming herself and half hoping the sensory overload will make
her pass out so she can sleep off the remaining effects of the laced
chocolate and he can hopefully get them cleaned up and pass her
condition off as a sudden illness to the school nurse.
When Conan brings Ayumi to her very first orgasm, she really does pee,
but Conan doesn't complain as he drinks down her combined juices,
finding the tangy taste of her pee surprisingly pleasant. Once she's
done trembling from her climax, she lies panting, sprawled on the floor.
As she closes her eyes and the heaving of her flat chest becomes a slow
rise and fall, Conan suspects she's fallen asleep, but this hope is
dashed when she asks, "So, how did my kitty taste, Conan-kun?"
"It was delicious! Much better than the chocolate!" answers the boy,
surprised by how little exaggeration went into that line.
Ayumi smiles at his answer before turning a deeper red than even her
shirt, "Co-Conan-kun, there was one other bit of grown-up play I heard
about..." cupping her cheeks in her hands as she trails off.
Half anticipating and half dreading the answer, Conan prompts her to
continue, "What's that, Ayumi-chan?"
Barely audible, Ayumi answers by asking, "Co-conan-kun, would you...
would you like to stick your thingie in... would you like to stick it in
my kitty?"
Conan can feel his cock growing painfully hard at her words and barely
hesitates as he replies, "I'd like to, but are you sure you want me to,
Ayumi-chan? I've heard that can really hurt a girl the first time a boy
does that to her."
"I know," replies Ayumi, "but I trust Conan-kun to make it not hurt
anymore than absolutely necessary." Spreading her legs as wide as she
can and reaching under her legs to spread her labia, Ayumi begs,
"Ple-Please, Conan-Kun! I want you to stick your thingie in my kitty!"
Lining his tip up with her opening, Conan pulls Ayumi into a kiss as he
runs his hand through her hair and slowly enters her. At the first sign
of resistance, he breaks the kiss to ask, "Ayumi-chan, are you sure
about this? If I go any deeper, it's going to hurt." Her only response
is to wrap her legs around his waist and give him a nod. Resuming the
kiss, he pushes forward, rupturing Ayumi's maidenhead, swalloing her
scream of pain in the process. As her no longer virgin pussy spasms in
pain around him, he massages her scalp with one hand as he strokes her
back with his other, any thought of pulling out squashed by the vice
grip with which her arms and legs are hugging him.
As she finally relaxes, Conan breaks the kiss and wipes a few tears from
Ayumi's cheek before asking, "Are you okay?"
With the pain having mostly subsided, Ayumi replies, "I'm fine."
Squirming beneath him some, she asks, "How does my kitty feel?"
Answering honestly, Conan replies, "You're realy warm and tight inside,
Ayumi-chan! It feels incredible!"
Blushing again, Ayumi replies, "Th-Thank you, Conan-kun. Now that the
pain is gone, your thingie feels really nice in my kitty as well. It's
so warm and hard!" After a few moments of them basking in the intimacy
of simply being joined, she adds, "You can start moving if you want,
Conan-kun."
Pulling most of the way out and sliding back in, Conan starts to slowly
rock his hips against Ayumi's, enjoying the way her pussy seems to
eagerly let him in every time he pushes forward only to reluctantly let
him out every time he pulls back. Seeing nothing but rapturous pleasure
on Ayumi's face, he soon picks up his pace and before long, he is
pounding her pussy like he's dreamed of doing to Ran ever since he hit
puberty the first time around, enjoing every moan and coo of pleasure
Ayumi releases into his ear whenever they aren't kissing.
Feeling his climax fast approaching, Conan announces, "Ay-Ayumi-chan, it
feels too good! I'm gonna...I'm gonna...!"
Putting two and two together, Ayumi asks, "Is Conan-kun going to squirt
that white, gooey stuff in my kitty?"
"YES!" Shouts the diminutive detective.
Hugging him even tighter and bucking her own hips in time with his
thrusts, Ayumi replies, "Then do it! Fill me with the white gooey
stuff!" Before capturing his lips in one more kiss just as his cock
erupts deep inside her as if her words had direct control over his
orgasm. This is enough to send Ayumi over the edge as well, her greedy,
little cunny convulsing around Conan's prick, trying to milk him for all
he's worth.
Once spent, Conan rools off top of Ayumi, not trusting his ability to
support his weight and not wanting to cause Ayumi discomfort from having
all of his weight on top of her.
Once she's caught her breath, Ayumi cuddles up next to Conan, kissing
him on the cheek before whispering in his ear, "I don't know what that
stuff is, but I really liked it when you squirted it inside me."
Reaching a hand to stroke him back to erection, she adds, "I'd like you
to squirt in me again." before straddling him.
Much to Ayumi's, and to the detectie's surprise, Conan's disappointment,
before Ayumi can sink on to Conan for round two, the Chimes indicating
that the school's main gate will be closing for the day soon rings out.
"Ah, poo!" pouts Ayumi, the juvenile foul language one last surprise from the
girl for the afternoon. The pair quickly put their clothing back right, Conan
using his analytical mind to ensure nothing is out of place before they gather
their things and head for the gate.
As they leave the school grounds, Ayumi whispers to Conan that she hopes
they can do this again, the boy not needing his genius level intellect
to know what she means, but before he can reply, she gives him a kiss
and runs off towards her family's apartment. As Conan makes his way to
Professor Agasa's house, his mind now clear and the rest of the box of
chocolates Ayumi gave him in his school bag, torn between wanting more
intimate moments with Ayumi and telling himself such a relationship is
wrong given his greater mental age, the gears start turning as his
deductive skills go to questions of how Ayumi got hold of Aphrodisiac,
who gave it to her, and why.
***** Ai's Lesson *****
Chapter Summary
     After giving him Valentine's Chocolate, Ai gives Mitsuhiko a lesson
     in pleasing a girl, and he's a quick study.
Chapter Notes
     Content warnings specific to this Chapter: Grown woman in a child's
     body seducing a shota, Sex Ed lesson, hints of past suicidial
     thoughts.
     Author's Notes: Part two of this Valentine's three-shot and with a
     full four days to get the third part out in time for the holiday.
     Also, I've managed to write something everyday for six days straight
     now, which I think is a new personal best.
See the end of the chapter for more notes
Detectiv Boy's Valentine's by Jeffery Mewtamer
Chapter 2: Ai's Lesson
Haibara Ai, formerly Miyano Shiho, inventor of APTX-4869 and it's second
known victim to be turned into a child instead of being killed, sits
alone in the Computer Club Room, Tsuburaya Mitsuhiko the only other club
member present, the rest having departed for the day, a situation the
plays right into the shrunken scientists plans on this day of romance,
for, like the other female member of the detective boys, Ai has prepared
some special Valentine's chocolates for a certain boy.
"Mitsuhiko-kun," calls Ai, getting the boy's attention.
 
"Yes, Haibara-san?" replies the boy, walking over to where Ai is sitting.
Without any fanfare, Ai hands a small box to Mitsuhiko, saying, "Happy
Valentine's Day." Unlike the flashy packaging Ayumi used, the box Ai hands over
is a simple, black rectangle.
Pleasantly surprised to be recieving a valentine's present from Ai,
Mitsuhiko takes the box reverantly, declaring, "Thank you very much,
Haibara-san." before opening it. Instead of the poorly formed hearts
Ayumi prepared for Conan, Ai's chocolates are perfectly formed bars.
"They look great!" exclaims Mitsuhiko before offering, "Would you like
to share them?"
"I'd be delighted," replies Ai, a rare smile crossing her face, and
before Mitsuhiko can react, Ai has pluck one of the bars from the box,
taken half of it into her mouth and pressed her own lips against his
before biting down, half the bar falling into the shocked boy's mouth.
Within seconds, an intense but pleasant warmth spreads through both
their bodies, the box of chocolates nearly falling to the floor as
Mitsuhiko's grip slacks, saved only by Ai being prepared to catch it and
place it on the desk.
When they break for air, Mitsuhiko tries to speak, "Haiba-" only to be cut off
by Ai.
"As long as we're alone like this, it's okay for you to call me
Ai-chan."
"Yes, Ai-chan." replies the boy, his mind still fuzzy from the chocolate
and the kiss.
Standing up and reaching for the waistband of her shorts, Ai asks
sultrily, "Mitsuhiko-kun, how would you like me to give you a hands-on
lesson in... female anatomy?"
"Female Anatomy?" starts the boy, confused by the offer, "Wh-What do you
mean, Ai-chan?"
Throwing her arms around his neck and rubbing against him in a way that
would have most boys just a few years older pinning her against the
wall, she whispers in his ear, "I want to show you my girl parts and how
you can use them for a very... grown-up game."
Shocked by the offer, Mitsuhiko can only nod. Breaking the embrace, Ai
undoes the button on her shorts and lets them drop to the floor.
After giving Mitsuhiko time to roam his eyes over her in just her black
blouse and white panties, she asks, "Why don't you remove my panties?",
the boy still too dumbstruck to do anything other than obey.
Once naked from the waist down, Ai sits back in her rolling pivot chair
and dangles her legs over the arm rests, completely exposing her vulva
to Mitsuhiko in a way that would be hard to surpass without being in a
gynecologist's exam room.
Adopting a tone that is as much lecturer as seductress, Ai gestures
Mitsuhiko to kneel before her as she starts the lesson, "The body parts
that distinguish a boy from a girl are collectively called genitalia,
and unlike a boy, most of what makes a girl a girl is on the inside, but
the external portion of a girl's genitalia is called the vulva. At the
moment, you probably can't see much other than a slit dividing my vulva
in half with very puffy skin to either side. Those puffy folds of skin
are called the labia and they help protect a girl's privates from
foreign matter. Are you following me so far?"
Nodding vigorously, Mitsuhiko replies, "Yes, Ai-chan." blushing, he adds
in a near whisper, "It's really cute."
Smiling broadly, Ai replies, "Thank you for the compliment." Spreading
her labia, she continues, "Parting the labia exposes the remainder of a
girl's external parts. At the top, concealed by a hood where the labia
meet..." Ai pulls back her clitoral hood, "...is the clitoris. This
little nub, one of the highest concentrations of nerve endings on the
human body serves one purpose: to give girls pleasure. Go ahead, touch
it and see how it affects me."
Tentatively, Mitsuhiko reaches a hand out and presses his index finger
against Ai's clit, causing the shrunken scientist to nearly jump out of
her seat and let out a loud gasp.
Pulling his hand back as if he just touched a hot stove, Mitsuhiko
worriedly asks, "Ai-Ai-chan, Did...Did I hurt you?"
Regaining her composure, Ai replies, "Not at all. In fact, it felt
amazing, but it was intense. In fact, prolonged stimulation of the
clitoris can leave some women unable to think straight, if at all, and
women have been known to pass out from the experience. Anyways," Ai
spreads her labia again to cotinue the lesson, "Further down you find
two holes. The smaller hole, closer to the clitoris, is the urethral
opeing, from which girls pee, but further down is the opening to the
vagina, a muscular tube that connects the Uterus to the outside world.
You can't see it, but the Uterus is a pear-shaped, muscular sack deep in
a woman's belly that houses an unborn baby until it's ready for the
outside world, a process known as pregnancy. There's more to a girl's
insides, but I can show you a diagram of those later. The important part
of a girl's insides for this lesson is the vagina."
Holding her labia apart with one hand, Ai uses the index finger of her
freed hand to point at her vaginal opening. "As you can see, there is
some liquid coming from my vagina. This happens when a girl get's
aroused and helps to lubricate the vagina. Like with the clitoris, it
feels really good when a girl has her vagina is stimulated. Go ahead and
try sliding a finger in and out, but be careful of my hymen, a barrier
just inside the vagina that partially blocks it, as it's fairly delicate
and tearing it can be quite painful."
Mitsuhiko slips his finger into Ai's pussy, going slowly to avoid
damaging her hymen. Unlike when he touched her clit, her reaction is far
less jarring as she starts to let out soft moans at his touch.
Unsure of what he's doing, Mitsuhiko asks, "Does...Does that feel good
Ai-chan?"
Running her fingers through his hair, she replies, "That feels great,
Mitsuhiko-kun. Try combining that with rubbing my clitoris between
you're thumb and forefinger." As he does so, Ai's moans increase in
volume and her breathing becomes heavy as her stoic masks starts to
crack. Before long, she starts to lose herself to the pleasure, bucking
her hips against his hands, forgetting to use proper terms as she yells,
"YES! It feels amazing! Pinch my clit harder! Finger fuck my pussy
faster!"
Mitsuhiko only understands part of what Ai is saying, but being the
smartest boy in his grade not counting Conan, he easily deduces her
meaning from context and does as she asks, staring mesmerized at the
sight of her juices flowing over his hand as he plays with her.
As her pleasure builds and her mind slips further into her lust, Ai
buries both hands in Mitsuhiko's hair, forcing his face into her crotch
and wrapping her legs around his neck as she commands, "LICK ME!" To
shocked to do any thing but comply, Mitsuhiko drives his tongue as deep
into Ai's passage as it'll reach, the boy surprised by how pleasant her
juices taste as he starts lapping them up. Opening his mouth as wide as
he can to encompass as much of her girlhood as he can, Mitsuhiko starts
licking up and down her entire slit from vaginal opening to clitoris,
and soon notcing a pattern in her responses to his actions that has the
strongest reaction coinciding with his tongue flicking her clit, he
decides to focus on that, sucking it like a starving infant at its
mother's nipple.
Mitsuhiko's efforts are soon rewarded as Ai tries her hardest to touch
her knees together behind his head, drenching his face in a flood of her
juices, her scream of "I'm cumming!" muffled by her thighs pressed
against his ears.
As her orgasm subsides and Ai releases her grip on his head, Mitsuhiko
falls back to land on his rear, staring at the shrunken scientist
sprawled out in the chair, her crotch soaked, her hair dishevelled, her
chest heaving and an arm laid accross her panting face, and yet looking
more beautiful to the young boy than he can ever remember.
When she finally catches her breath, she sits up and stares down at the
boy with the warmest smile she's ever given him as she says,
"Apparently, you're a natural at reading a girl's reactions and giving
her just what she needs. I've never came close to an orgasm that strong
while masturbating!" Noticing the confused expression on his face, she
asks, "I take it you have questions?"
"Yeah..." starts the boy, "Like what clit, pussy, fuck, orgasm, and
masturbate mean."
"Ah..." starts the girl, resuming her lecturer's tone, "In order, clit
is short of clitoris, pussy is slang for vagina, fuck is a somewhat
vulgar term for sticking something in a bodily orifice, an orgasm is
what happens when the pleasure from touching one's genitals reaches an
explosive climax, and masturbation is when one touches their own
genitals. Also, while you didn't ask, the technical term for stimulating
a girl with your tongue is cunnilingus." Dropping to all fours and
crawling over to Mitsuhiko, Ai adds, "Since you gave me such a
mind-blowing orgasm, I should return the favor."
Helping him up into a kneeling position, Ai makes quick work of lowering
his pants and briefs to the floor, and wraps one hand around his little
stiffy and cups his balls with the other as she explains, "Boys use
their penis to pee, but when a boy gets excited, it becomes erect and
can be stimulated to make the boy feel good." She gives him a few
strokes to illustrate. "This sack, called the scrotum contains the
testicles, which will start producing sperm when you get older. They too
can be stimulated. Girls have similar organs called ovaries, which are
connected by fallopian tubes to the uterus and produce eggs. It is the
union of a sperm and egg to form a zygote that begins the formation of a
baby within the mother's uterus, but it should be years before you have
to worry about that." Giving him a few more strokes and blowing warm
breath on his tip, she adds seductively, "I could bring you to orgasm
just by stroking you, but I think you deserve fellatio, which is what it
is called when one uses their mouth to stimulate a penis." Her
explanation complete, Ai takes his tip into her mouth and swirls her
tongue around it before starting to bob her head, taking a little more
of him into her mouth with each downward movement of her head.
Having barely held back his moans at having her touch him, Mitsuhiko
can't help but sing his pleasure to the heavens as he is engulfed by her
warm, wet mouth, a sensation beyond any he ever imagined coming over him
as her tongue dances over his member. As her nose makes contact with his
pubic bone, his tip pressing against the back of her throat, her tongue
snakes out of her mouth to give his balls a lick as she gives several
strong sucks to his entire penis.
Noticing him tense up and suspecting he's fighting an urge to let his
instincts take over out of his sense of being a gentleman, Ai pulls
back, stroking him vigorously as she says, "It's okay, Mitsuhiko-kun.
You can grab my hair and thrust your cock,"
"My cock?" he asks, cutting her off.
"Slang term for penis." she replies, not losing a beat, "Grab my hair
and thrust your cock down my throat if you want. Fuck my mouth with your
cock as roughly as you want." With that, she returns to sucking his
cock, taking it balls deep right away this time. Taking her words to
heart, Mitsuhiko lets his desires take over, fisting both hands in Ai's
hair and starting to buck his hips in time with her head bobs.
Though both are virgins, Mitsuhiko has no experience with masturbation
and is soon thrusting in a frantic, unrhythmic fashion, before thrusting
as far into Ai's mouth as possible, her teeth pressed firmly against his
pubic bone. As she suspected, he's too young to ejaculate, but his
member twitches violently in her mouth as he shudders in orgasm.
Letting go of Ai and slumping to sit on his heels, Mitsuhiko pants out,
"Wow, Ai-chan, that was incredible!"
"I'm glad you liked it." She replies. "So, does my favorite student have
any questions for his teacher?"
Blushing at being called her favorite, he asks, "Was that an orgasm I
just experienced?"
"I can't be sure since you're too young to ejaculate, that is, emit
semen, a solution that serves as a medium for sperm, from your penis,
but I think so."
She replies. "Any other questions?"
"You said babies are made when a girl's egg and a boy's sperm combine."
He starts timidly.
"That's correct." She answers, gesturing for him to continue.
"If Sperm are made in the testicles and eggs in the ovaries, how do they get
together to combine and make a baby?"
Smiling proudly, she replies, "Now, you're a smart boy, Mitsuhiko-kun.
You should be able to figure it out from the lesson. Think of it as a
test..." Tilting her head and giving him a more playful expression, she
adds, "If you get it right on the first try, I'll give you a reward
better than fellatio."
Motivated by her words, Mitsuhiko sits quietly for several minutes,
carefully putting all the hints she's given him together, utilyzing
everything Conan has taught the Detective Boys about making deductions.
Just when Ai's heart starts to drop in disappointment that he isn't
going to figure it out, Mitsuhiko speaks, "Does the boy slide his penis
into the girl's vagina and ejeculate his semen into her uterus while the
egg travels along the fallopian tube?
Her heart swelling with pride at his right answer, she replies
enthusiastically, "Well done! That's correct!" Laying down on the floor
and spreading her legs, she asks seductively, "Now, for your reward,
would my favorite student like to practice making a baby with his
teacher?"
"Wait, but wouldn't your hymen get in the way?" He asks, remembering
another detail he hadn't considered in his answer.
"Yes, you'll probably tear it with your penis, which is most likely
going to hurt me quite a bit, but it will only hurt the first time, and
only for a little while. Besides, It'll feel really good for both of us
once I'm past the pain." Giving him a grin, she adds, "Besides, you've
proven yourself smart and attentive enough that I'm sure you'll do
everything you can to minimize my pain. Now, get over here and fuck your
teacher's pussy with that hard, little cock of yours before I'm forced
to give you detention."
As Mitsuhiko positions himself over Ai, she guides his cock to her
sopping wet opening, before instructing, "Now, just press forward until
you're all the way inside, and don't stop until then no matter how much
I cry."
Reluctantly, he does as she says, though he's slow as he pushes through
her hymen, easing into her as she stretches to accomodate him. She
doesn't scream or wince at the lost of her virginity, but by the time
he's fully seated within her, her eyes are shining with unshed tears.
The pair embrace, Mitsuhiko simply savoring having her tight pussy
engulfing him as she silently waits out the pain of her torn hymen.
 
After what seems like an eternity, she whispers to Mitsuhiko, "You can
start moving."
At first, Mitsuhiko rocks his hips slowly, tenderly making love to Ai to
ensure he causes her no further pain, but his slow pace soon becomes
agonizing for the shrunken scientist, her desire to be ravaged flaring
up as she hisses, "Fuck me hard, fuck me fast, fuck me raw, but enough
of you being gentle!" as she starts bucking her hips against his as hard as she
can.
Taking the hint, Mitsuhiko picks up his pace, and the pair are soon
fucking frantically on the Computer Club Room floor, sweat dripping off
of both of them as their intellectual pursuits are forgotten in the
pursuit of passion and a shared climax.
And it isn't long before they reach that shared climax, crashing their
lips together as his cock twitches deep within her and her pussy tries
to milk him of the cum that he won't be able to produce for a few years.
Part of Ai is disappointed she can't feel him shooting in her, even
though she's unsure if her shrunken body's lack of periods also means
lack of ovulation, but she doesn't let this ruin the bliss of riding out
a climax in the arms of the boy who convinced her that her life has
purpose beyond curing Kudo.
As they regain their sense, they say in unison, "That was incredible!"
Bringing his mouth to Ai's ear, Mitsuhiko whispers, "I love you,
Ai-chan." As tears of joy well up in her eyes, he's worried he's hurt
her, "Are you okay, Ai-chan?"
"I'm more than okay." she replies before kissing him again, this time
much more softly. When she breaks the kiss, she whispers in his ear, "I
love you, too, Mitsuhiko-kun." Wriggling out from under him, she manages
to get on all fours, and shaking her butt at him, "Up for a another
round? If you take me in this position, you can reach under me to play
with my clit or nipples as you fuck my pussy."
"Sounds great!" says Mitsuhiko, but has he prepares to slide in her, the
bell rings indicating they need to get ready to leave the school.
"Guess we'll have to take a rain check on further lessons." Declares Ai,
disappointment obvious in her tone.
"I look forward to future sessions with my favorite teacher." replies
Mitsuhiko.
"I like that attitude." says Ai, smiling widely. "You're homework is to
masturbate while thinking of me, and I may just quiz you on what you've
learned today when we get the chance."
After the two get dressed, Mitsuhiko insists on walking Ai home, and as
they approach Professor Agasa's house, Ai sees a brooding Conan waiting
outside.
Giving Mitsuhiko a quick peck on the cheek, Ai says, "I'll see you
tomorrow."
Before she can run off to see what's up with the shrunken sleuth,
Mitsuhiko gives her a peck on the forehead and says, "See you tomorrow."
before giving her a quick hug and departing.
Chapter End Notes
     For anyone wondering why Conan can ejaculate and Mitsuhiko can't, for
     the purposes of this story, I'm treating semen production as
     something unaffected by APTX-4869, much like how it left the brain
     and muscle memory unaffected.
***** Conan's Payback *****
Chapter Summary
     Conan learns what was in those chocolates and gets some payback
     against the culprit.
Chapter Notes
     Warings specific to this chapter: Wetting, tickle torture, nipple
     torture, bondage, anal.
     Author's note: Few days late, but here's the conclusion to this
     little Valentine's three shot. Also, my streak of consecutive days of
     writing ended at 11, but writing 12 out of 13 days is still pretty
     good towards building better habits regarding my productivity in this
     area.
Detective Boys Valentine's by Jeffery Mewtamer
Chapter 3: Conan's Payback
The shrunken teen geniuses say nothing as Ai unlocks the door and they
enter the professor's house.
As soon as she's confident they can't be over heard, Ai speaks, "So,
Kudo-kun, what's got you in such a pensive mood?"
Pretending to have not heard the question, Conan asks, "Any idea where
the professor is?"
"Knowing him," Ai starts, "He probably decided to hit up every cafe and
sweet shop in Baika with a Valentine's sale and went while we were at
school in hopes of avoiding me moderating his consumption, and speaking
of avoiding, you didn't answer my question."
Blushing brightly in remembrance of earlier that afternoon, Conan tries
to stutter out a denial, "No-Nothing happened."
Smiling knowingly, "Is that so? I thought for sure Ayumi-chan would take
the opportunity afoorded by the two of you having cleaning duty today to
give you some Valentine's Chocolates."
Realizing Ayumi must of confided in Ai, Conan admits, his blush
darkening, "She did." and then quickly adding, "But nothing else
happened."
Teasing the shrunken sleuth, the shrunken scientists says in a sing song
voice, "Is that so? Then why are you so flustered?"
Unbalanced by how two of his closest female friends have ben acting,
Conan blurts out, "Because the chocolates she gave me were laced with
aphrodisiac, we both got doesed, and and I-I..." the teen detective
trapped in a child's body is unable to finish the admission.
"It wasn't aphrodisiac." Replies Ai, further startling the detective.
"Wait. What?" Replies Conan, his jaw dropping.
"It wasn't aphrodisiac." Repeats the shrunken scientist. "It was more of
an uninhibitor."
"You mean, the chocolate was drugged with one of your inventions?"
"Sure was!" replies Ai, sounding quite proud of herself. "Quite ingenius
really, on it's own, it's completely inert and untraceable, but combined
with the theobromine found in chocolate, it causes the subject to be
completely honest with their feelings. That it affected you and
Ayumi-chan like an aphrodisiac just means the two of you were holding
back strong mutual feelings of romantic affection."
"But...but, me and Ayumi...I'm more than twice her age! What we did was so
wrong!" Exclaims the detective.
"And if your feelings for Ayumi-chan had genuinely been of a fraternal
nature, you would've bluntly refused her advances." Says the scientist
in refutation of Conan's words. "Besides, as far as most of the world is
concerned, you and Ayumi-chan are the same age, and children of
elementary school age engage in erotic play more often than most adults
are willing to admit."
"But Kudo Shinichi's DNA is soaking into Ayumi-chan's vagina and
underwear as we speak!" Cries the boy, on the verge of hysterics. "If
her parents notice..."
"They're not likely to investigate further once Ayumi-chan confesses
she's been playing grown-up games with a classmate, and it's not like
Edogawa Conan hasn't had other bodily fluids tested by those not in the
know that could be used to prove that Edogawa Conan and Kudo Shinichi
have the exact same DNA. Though, I confess I'm a bit jealous of
Ayumi-chan. It'll probably be years before Mitsuhiko-kun can give me a
creampie."
Realization dawning on him, Conan shouts, "You dosed Mitsuhiko-kun as
well?!"
"And myself. He was quite the eager learner and a very attentive lover."
replies Ai, Acting like the lovestruck schoolgirl she looks like. "Come
on, Kudo-kun, as long as we're stuck in the bodies of children, we might
as well enjoy the perks of being children, including cchillldish
romances."
As Ai walks away, Conan decides to take her advice and get some payback
for her playing matchmaker in a rather childish way. While she has her
back turned, Conan quickly preps his tranquilizer wristwatch for a
child's dose and fires, hitting Ai in the neck before rushing forth to
catch her as she falls unconscious.
###
When Ai comes too, she finds herself stripped to her panties, lying on
her bed, and with her wrists and ankles bound to the corners of the
mattress.
As Conan stepppps into her field of view, his suit jacket having been
discarded to expose his vest while she was out, Ai asks, "What's the
meaning of this, Kudo!?"
"Welcome back to the land of the conscious, Haibara." replies the
shrunken sleuth, approaching the bed with something in his palm, "I just
thought I'd have some childish fun and play a little, I'm not sure prank
is the right word, but there is an experiment I'd like to conduct."
Holding up the object in his palm to reveal it as one of the misshapen
chocolate hearts Ayumi gave him. Breaking it in two, he forces one half
into Ai's mouth, the shrunken scientist struggling against her bonds and
Conan's attempt to force feed her the drugged chocolate until it makes
contact with her tongue, her indignity evaporating and being replaced by
curiosity of what Conan is going to do to her. Conan then eats the other
half of the chocolate, the little voice telling him he's going too far
quieting as the drugged confection solidifies his resolve to torture the
girl before him in the way of a brother wanting to torment a sister.
Straddling the bound girl, Conan gets a devilish smile on his face as he
reaches his handes towards Ai's exposed flesh, the shrunken scientist
worriedly asking, "What are you going to do to me?" unable to cover her
fear at knowing she's completely at his mercy with false bravado as her
own drug forces her to express her true feelings, but the detective
makes no reply as his fingers make contact with her ribs and starts
tickling. Immediately, she is giggling at the top of her lungs,
thrashing against her bonds and the boy's weight pressing down on her
midsection in a futile attempt to drop her arms and cut off her ribs and
arm pits from his assault.
After what seems like an eternity, Conan halts his assault, leaving Ai
panting and her small chest heaving from how hard she was laughing, the
shrunken scientist unsure if she's ever laughed so much or so hard in
her life.
As she catches her breath, she's tempted to ask for more, unable to
remember such a pleasant experience, but before she can open her mouth,
Conan has hopped off the bed and is leaving the room and she instead
calls out, "where are you going!?" to the boy's silent back.
While Conan is gone, Ai is torn between anticipation that Conan has more
overwhelmingly pleasant things in store for her and dread that he'll do
something genuinely unpleasant to her when he returns.
When Conan returns, he holds up a feather for Ai to see, grinning widely
as she asks, "What are you going to do with that?" Saying nothing, the
boy walks to the foot of the bed, and without warning strokes the
exposed sole of Ai's foot with the feather and before long, the shrunken
scientist is once more lost to uncontrollable laughter, her bonds making
escape impossible. Conan then pulls out a second feather to target the
sole of her other foot.
As the shrunken slueth continues to mercilessly tickle her feet with
those damnable feathers, her laughter filling the house, she doesn't
notice her bladder starting to fill rapidly thanks to a bottle of
diuretic laced water Conan had poured down her throat while she was out.
 
As a result, Ai barely notices as she starts to wet her panties and the
bed beneath her, only fully realizing what she's doing when Conan halts
the tickle torture to comment, "WOW! Haibara is the last person I
expected to ever see wet herself."
Her cheeks burning in embarrassment, Ai retorts, "This is all your
fault, Kudo!"
"You know," starts the detective teasingly, "You're really very cute
with the mask stripped away and letting your vulnerability show
through." causing the scientist to blush more deeply.
Careful to avoid the puddle she made, Conan straddles her waist, and
pulls two smalle binder clips from his pocket. Squeezing her tiny titty
to make her already hard nipple protrude a bit further than normal,
Conan clamps one of the clips around Ai's nipple, a gasp of both pain
and pleasure escaping her throat. Giving her a moment to recover from
the shock, Conan repeats the process with her other nipple.
Jumping off the bed, Conan dorps his shorts and briefs to the floor,
prompting Ai to ask, "Why are you undressing?"
Without a word, he retrieves a pocket knife from his discarded pants
before kneeling between Ai's spread legs and staring at her crotch. Her
panties, plain white cotton stained yellow from her accident, cling to
every contour of her girlhood. With a careful hand honed on the crime
scene, Conan slips the blade of his knife between fabric and skin to
cleanly slice through the seam of the ruined garment on first one hip
and then the other.
Shivering as Conan tosses the pee soaked panties aside, exposing her wet
skin to the open air, Ai goes crimson from head to foot as she weakly
protest, "Pl-please don't look at me like this."
Sliding a finger inside Ai, Conan replies, "But I can tell you're
already wet, and not just from peeing. You're a bit of a masochist,
aren't you?" She wants to deny it, but can't bring herself to do so with
her drug still affecting her.
Sliding his tip along her slit, Conan asks, "I'd bet you'd like me to
give you a creampie, wouldn't you?"
"NO!" cries Ai, finally finding something she can honestly protest about
the situation. "My pussy belongs to Mitsuhiko-kun!" More shyly, she
adds, "But, you...you can use my ass if you'd like."
Liking the idea, Conan unties on of her feet, only to tie it again next
to the other foot. He then unties her second fot, flips her over,
forcing her to cross her arms uncomfortably and reties the foot, leaving
her now on her stomach with her legs held apart. Fingering her pussy to
lubricate his finger, he then slides the slick digit into her anus to
help prepare her.
Once satisfied her rear passage isslippery enough, Conan holds the
shrunken scientist's half moons apart as he slowly sinks his cock into
her bowels, both of them gasping in pleasure, him from how much tighter
her ass is compared to Ayumi's pussy, her from how much he's stretching
her rectum.
Not wanting to really hurt her, Conan starts slow, but before long, Ai
is begging, "Fuck me hard and fast, Kudo!" and the shrunken sleuth is
only too happy to comply. He reaches under her to rub at her clit, which
only spurs her on further.
As they both build towards their orgasm, Ai's bladder starts to fill
again, a consequence of having a child's bladder and conan having forced
her to drink a water bottle that would be large even for an adult, but
the scientist is too lost in the moment to really care, and when Conan
shoots his seed deep in her bowels, her orgasm isn't far behind and her
bladder empties itself of its own accord for the second time in less
than an hour.
After catching his breath, Conan pulls out of her ass and uses her
destroyed underwear to clean his cock before dressing.
As he walks towards the bedroom door, Ai shouts, "Aren't you going to
untie me?"
"Nah," replies the detective, giving her a cheeky grin, "I think I'll
leave you like this for the professor to find." With that, he quickly
beats a retreat.
As Ai's scream of "KUDO!" reverberates through the house, the shrunken
sleuth runs out the front door, Passing Agasa as he's walking up the
sidewalk on his way to the Mouri Detective Agency.
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