Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/9859730.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      モブサイコ100_|_Mob_Psycho_100
  Relationship:
      Kageyama_"Mob"_Shigeo/Reigen_Arataka
  Character:
      Kageyama_"Mob"_Shigeo, Reigen_Arataka
  Additional Tags:
      daddy_au, Toddlercon, tod_mob, he's_4_years_old, Extremely_Underage, Oral
      Sex, Food_Play, Shota, todmob_bomb
  Stats:
      Published: 2017-02-21 Words: 2686
****** Daddy Tastes Best ******
by MerryGoat
Summary
     Reigen has a special treat for his little boy on this Valentine's
     day!
     AKA toddler Mob sucks Reigen's chocolate covered dick.
Notes
     Thank you Sarah for the Beta work TvT
     This is a week late, but I worked hard on it! So hopefully you enjoy
     this little work of self gratuitous porn.
     WARNINGS: Mob is four years old and he sucks a dick.
See the end of the work for more notes
'Twas the night before Valentine’s, when all through the house - not a creature
was stirring, not even a Mob...
Reigen slumped back on the couch, flickering mindlessly through T.V. channels.
It was barely 7 PM and he had already put his ward to sleep a couple of hours
ago. As much as he would have loved to be snuggled up in bed with his little
boy, he would have had trouble sleeping this early. He didn't want to wake the
boy up with his own insistent shifting and squirming. So here he was,
suffering, so far yet so close to his snoring boy. Stuck watching dramatic game
shows.
Just as he had been preparing to shut the television off and head to bed, at
least try to get an hour nap to prepare for the periodic times Mob would wake
up in the middle of the night, he heard a tiny voice.
"Daddy?"
He turned to see Mob, his ward of just over four years, toddling into the
living room. The boy wore Reigen's oversized T-shirt that he long ago claimed
as his pajamas.
"Hey sleepyhead," Reigen greeted, waving Mob over to his lap. Never one to turn
down a chance to curl up with "Daddy", Mob sped through the room and crashed
onto Reigen's lap.
"Easy there!" Reigen hooked his hands under Mob's arms and lifted him up.
Propped on his lap, the boy instinctively wrapped his bare chubby legs around
his waist.
"Is it valentine yet?" Mob asked, propping his chin on Reigen's chest. Sleepy
eyes looked up at Reigen pleadingly, begging Reigen to make the time go by
faster so it’d be valentines already. Always a favorite holiday of his baby boy
since it means plenty of treats.
Reigen smiled as he wiped off the trail of drool that dribbled down Mob's chin.
"Not yet baby, it will be in a few more hours though."
"Oh," Mob huffed, stuffing his face back against Reigen's chest. He was
pouting. And Reigen suspected he knew exactly what was wrong.
"Are you grumpy because-"
"Not grumpy," a muffled voice interjected.
Reigen snorted, but patted his boy’s back to soothe him. "Well, are you sad
about not getting to eat your candy yet?"
There was a pause in the air. Yep, of course Reigen was right. He knew this
child better than he knew the back of his hand. It was only further confirmed
when Mob silently nodded against his chest, tiny hands clinging onto Reigen's
shirt.
"Well, maybe if you stop pouting - ahem, I mean being 'sad'," Reigen teased.
"Then I might give you an early treat. Hmm?" Because as much as Reigen avoided
giving Mob candy aside from special days, he would be willing to make an
exception. After all, it was just a few more hours till Valentines day!
Mob swung his head back when he heard the offer, his hands splayed against
Reigen’s stomach to hold himself up. “Early candy?” Mob asked, trying to put on
a look of pure determination. But those chubby cheeks ruined it, and he looked
more adorable than anything.
"Yep, early candy." Reigen leaned down to peck Mob's nose. Oh, this was
entirely worth it. Mob’s face lit up, that charming little smile on his face
again at the promise of candy, eyes practically shimmering.
Warm, short arms wrapped around Reigen’s neck securely, and a cute little butt
began to bounce on his lap. He knew exactly what that meant. “Ah, you want me
to carry you too now?” Reigen pretended to complain. He was answered with an
affirmative hum, and harder bouncing.
“You ask for too much,” he teased, before wrapping his arms around Mob’s butt.
With his boy securely in his arms, Reigen stood up. Reigen’s heart skipped a
beat as his boy giggled to himself, the measly act of being picked up being
enough to bring them both joy.
They made their way to the small kitchen, and Reigen crouched down to open the
small fridge with Mob still in his arms. He reached to the very back of the
fridge and pulled out a candy bar he had been hiding for days now, knowing his
greedy little boy would have taken an early treat otherwise.
Reigen had to hold in a laugh when Mob made a small noise of annoyance at being
bamboozled. Apparently Mob didn’t know that Reigen had caught him digging in
the grocery bags all this week, trying to find the candy he knew Reigen would
buy for him. But Reigen was quicker, and had stuffed all the treats in his
pocket before coming home, and hid them in random places.
Reigen switched Mob to his side, holding the child up with a single arm on his
hip. "Do you want cold or warm chocolate?"
"Hummm... warm!" Mob exclaimed, bouncing on Reigen’s arm again.
"I knew you would," Reigen said, setting the boy down on the kitchen counter.
He unwrapped the chocolate bar and set it in a bowl before popping it on the
microwave to heat up.
While they waited for the chocolate to melt, Mob set to winning Reigen's heart
all over again by... just being himself. His legs swung back and forth, torso
swayed side to side. For a moment he even began to float up, up, and up. Reigen
was lucky to pull the boy back down in time, avoiding a repeat of the time he
had to get a chair to pull Mob back down safely from the ceiling.
The entire walk back to the couch with the melted chocolate in bowl, Mob
wiggled and jerked in Reigen's hold. But Reigen couldn't bring himself to
reprimand the boy, and instead gave into his enthusiasm by adding a little more
pep in his step.
He plopped down on the couch, careful not to drop the bowl, and sat Mob on the
couch beside him. The toddler immediately popped his mouth wide open, tongue
half out of his mouth as he waited to be fed.
"You're spoiled," Reigen huffed, but truly didn't mind in the least bit. Mob
only replied with a nod, tongue still lolled out. Not having a moment of
hesitance, Reigen dipped his finger in the warm bowl and twirled it around for
maximum chocolate coverage. Afterwards he held his sweetened finger, dripping
in chocolate, right in front of Mob's nose.
“Ahhh~” Mob whined, going cross eyed to keep his eye on the prize. His little
hands slapped against his own lap, urging Reigen to hurry up!
“Greedy baby,” Reigen huffed, ignoring the pang in his crotch. He popped his
finger into Mob’s mouth, the boy immediately latching onto it. Little baby
teeth scraped around Reigen’s finger as Mob began to gently suck the chocolate
off.
“Tashtes gud,” Mob said around the finger. Then kitten licks lathered the
entirety of Reigen’s finger, Mob growing desperate to get every tiny bit of the
sweet treat down his plump tummy.
“Don’t talk with your mouth full.” Reigen shifted in his seat, finally forcing
himself to pull his hand back once Mob had cleaned it up.
“Daddy!” The child cried, extending his little hands out as he grabbed the air.
Chubby fingers touched the ridge of the bowl Reigen had on his lap, but Reigen
was quick to snatch it back out of reach.
“No, kitten,” Reigen said affectionately, holding the bowl in the air. And Mob
stared at him with a wobbly lip, eyes watering as he began to huff. His little
fisted hands dropped to the couch in defeat.
“Oh, don’t pout,” Reigen groaned, bringing the bowl back down on his lap.
“You’re going to get more, but you have to learn to be patient.”
When Mob’s pre-tantrum face disappeared in a split second, Reigen realized it
had been nothing more than an act for sympathy. ‘Brat…’
“Mob, I have a better idea. Don’t you want to be able to eat a lot of
chocolate?” Reigen asked, turning his body to face Mob.
“Hummm…” The boy wondered out loud, tapping his chin with his finger to show
that he was thinking.
“My finger is too small to hold a lot of chocolate, don’t you think baby?”
“Huuuuuuummmmmmm…” Mob put more thought into it.
Reigen sighed, realizing he’d had to show what he meant. He set the chocolate
on his lap, and reached down to unbuckle his pants.
That immediately got Mob’s attention, who stopped staring off into space and
had his eyes glued on his crotch. Reigen wiggled his pants down just a few
inches, just enough to be able to comfortably pull his cock out of his brief’s
slit. A half hard cock jutted out rather pathetically, still slumped over like
an old man.
“Are we playing the quarter game again?” Mob asked, eyes glimmering at the
opportunity to win this time.
“Yep, the quarter game,” Reigen said, referring to the game he and his baby boy
had been playing for over a year. Each quarter of Reigen’s cock Mob had managed
to stuff down his little mouth, Reigen would reward him with an actual quarter
of allowance. Usually Mob would only make it to the one quarter mark, which the
boy would gladly take to buy a lollipop at the candy store.
“But this time we’re going to play with chocolate.” Reigen held the bowl
between his legs, and angled his growing erection with his other hand. Mob
watched in awe, a trail of drool dripping down his chin, as Reigen dipped half
his cock in the melted chocolate.
“I didn’t know you could do that!” Mob exclaimed, batting his hands on the
couch.
“This is just a special occasion,” Reigen said, lifting one leg onto the couch,
leaving the other one on the floor.
Mob got the memo and immediately crawled forward to situate himself between
Reigen’s spread legs. His little pink tongue darted out to lick his lips, eyes
glued onto Reigen’s dripping cock that twitched, streams of chocolate staining
his daddy’s pants.
Mob, ever so eager to satisfy his sweet tooth, dove right in. He laid on his
stomach for the best angle, both of his tiny hands wrapping around the base of
Reigen’s cock to point it down towards his mouth. Daddy’s moans only encouraged
him, the tiniest, devious smile spread across Mob’s lips.
Surely if he did a good job, he’d be able to make daddy play this game enough
times that he’d get to eat the entirebowl of chocolate!
So he set to work, aiming to be the best cock sucker in the lands! For the
delicious treasure of hot chocolate that tasted just like his daddy… As so many
times before, he peppered light kisses on the entirety of Reigen’s cock and
balls. He loved it when daddy did the same to him, so he returned the favor.
“There we go, such a good b-boy,” Reigen panted, a goofy smile on his face as
he rubbed his boy’s back. Mob hummed happily, deciding to take it a step
further and began licking at the head. His usually rosy lips and cheeks were
smeared in chocolate.
Only a minute had passed before Mob had gotten bored. He backed away staring at
Reigen’s dripping cock. The head was now completely devoid of chocolate, the
greedy boy unable to get even a tiny lap of sweetness anymore. Time to take it
a step further.
With a tiny gasp of air, he settled back and pushed Reigen’s cock into his
mouth. Reigen’s reaction was immediate.
“God, yes!” The man threw his head back, hands clutching to his own shirt to
resist holding his boy’s face down and fucking it. Instead he allowed Mob to go
at his own pace.
Sweet little sucks enveloped Reigen’s dick, and he could feel Mob trying to
force the cock further down his mouth. It wasn’t until he could feel the tip of
his cock pressed against Mob’s throat that he finally piped up.
“Be careful,” he warned, caressing Mob’s head with shaky hands. “If you throw
up, the chocolate won’t taste very good.”
Mob whimpered at the thought and decided to follow his daddy’s advice to back
off a little. He managed to smush just an inch under the head of Reigen’s cock
into his mouth, slobbery sucks and laps stimulating Reigen’s member.
“So good,” Reigen praised, threading his fingers in Mob’s messy hair. The boy
still had bed head, evidence of how just a while ago he was napping on their
bed.
“Thish ish more,” Mob paused pop the Reigen’s dick out of his mouth, instead
lapping and sucking the underside. “More yummy than normal chocolate,” he
announced between licks. He went back to the very tip and opened his mouth as
wide as possible, stuffing the entire head of Reigen’s cock back into his
mouth.
“N-no talking with your mouth fuh- hah… full...O-oh fuck,” Reigen panted,
fighting so hard not to buck forward and fuck his baby boy’s hot little mouth.
Baby teeth nicked at Reigen’s sensitive flesh, but it didn’t matter. His boy
looked beautiful looking up at him, cheeks puffed out as he tried to
accommodate the entirety of his cock.
“Baby, baby, baby,” Reigen panted, patting Mob’s cheek to get his attention.
And then his child had the audacity to look up at him innocently, and hum
curiously around Reigen’s cock.
“Oh fuck,” Reigen gasped, unable to stop pushing one sharp thrust against Mob’s
mouth. Mob couldn't help but whimper, but clamped his lips securely around the
tip. Reigen’s boiling hot dick milk shot out, hitting the back of Mob’s throat.
Mob cried out, pulling away for a second with a mouth full of semen.
“Daddy! Slow down,” Mob complained with a mouth full of cum, hands still
stroking Reigen’s pulsing cock. His chubby hands mixed the semen and chocolate
together as more cum dribbled down Reigen’s cock.
Silence fell, Mob’s usual cooing and tittering noises fell silent only leaving
Reigen’s moans to fill the room.
“Chocolate milk…” Mob finally said, eyes wide in amazement as he made the
connection.
“W-what?” Reigen groaned, opening his eyes just in time to catch his precious
boy lean over, and lick the sticky combination.
Mob made a face, scrunching his nose up for a moment before swishing the
substance in his mouth. Reigen was worried he didn’t like it. But the fear was
quelled when Mob gave him a goofy grin, and nodded to himself. “Uhuh, chocolate
milk. Yummy!” He exclaimed, clapping his hands together to go right back to
licking his daddy’s cock clean.
“Mob- baby, be careful,” Reigen groaned, his oversensitive cock starting to
hurt as it softened. But Mob only replied by looking up at him with those large
doe-eyes, blinking up at him innocently with a mouth full of dick. Instead of
replying, he held up two chocolate covered fingers in the air.
Reigen furrowed his brows. “T-two? Two what?”
Mob took a moment to reply, popping his mouth off Reigen’s soft cock that was
nearly completely clear of chocolate. “I get two quarters now,” he announced
proudly, taking full advantage of Reigen’s soft cock to stuff it deeper than
usual.
“That’s cheating,” Reigen reminded, reaching down to gently pet Mob’s hair. The
boy ignored his accusation in favor of licking every last bit of chocolate and
cum off his cock. Reigen’s cock was sensitive, but Mob’s warm mouth was enough
to pull him through. And once his dick was sparkly clean, Mob instead set to
nuzzling his cheek against the underside of it, practically purring in joy.
“Thanks Mob,” Reigen said, shifting as he prepared to get up and return the
favor. But he sat back down when a sudden force pressed him to. Mob was using
his powers to hold him down. The toddler was still laying on his stomach, now
reaching forward to grab the remaining bowl of chocolate.
“Daddy, I’m not finished,” he announced, tipping the bowl over to cover
Reigen’s cock in the remaining chocolate.
“Oh fuck,” Reigen gasped, throwing his head back once more as Mob went back to
work.
End Notes
     Thank you for reading ^q^ I plan to do a lot more work with Toddler
     Mob, so if you have any suggestions feel free to leave them below.
     And boiling dick milk is a reference to a top grade anime. I'm not
     sorry.
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their work!