Little!Tony FanFiction

a very good place to start

a very good place to start

M/M
Multi
G
Updated
29.04.2025
Fandom
Marvel Cinematic Universe The Avengers (Marvel Movies)
Characters
Tony Stark, James "Bucky" Barnes/Steve Rogers, James "Bucky" Barnes, Steve Rogers, James "Bucky" Barnes/Steve Rogers/Tony Stark
Tags
Alpha/Beta/Omega Dynamics Comfort Asexual Character Alternate Universe - BDSM Non-Sexual Age Play Age Play Little Tony Stark daddy!Bucky Asexual Tony Stark Little!Tony Papa!Steve
How Bucky, Steve, and Tony got their start.
Mommy Knows Best - Room for One More

Mommy Knows Best - Room for One More

Gen
G
Updated
29.04.2025
Fandom
Marvel Cinematic Universe The Avengers (Marvel Movies)
Characters
Tony Stark, Steve Rogers, Natasha Romanov (Marvel), Bruce Banner, Clint Barton, Nick Fury, Thor
Tags
Fluff Hurt/Comfort Post-Traumatic Stress Disorder - PTSD Past Abuse Wetting Non-Sexual Age Play Age Play ABDL Diapers Infantilism nsap Headspace
An unexpected guest at the Tower interrupts life for our brand new family-- Mommy!Natasha, and her four little boys, Tony, Steve, Clint, and Bruce.
Caregiver

Caregiver

Gen
Other
G
Updated
29.04.2025
Fandom
The Avengers (Marvel Movies) Iron Man (Movies) Iron Man (Comics)
Characters
Tony Stark, Jarvis (Iron Man movies), Steve Rogers, Natasha Romanov (Marvel), Bruce Banner, Clint Barton, Phil Coulson, Steve Rogers & Tony Stark, Clint Barton & Phil Coulson
Tags
Dubious Consent Non-Sexual Age Play Age Play Littles Are Known Bed-Wetting Diapers Infantilism bottles diaper changes non-sexual infantilism Daddy!Steve Little!Tony
Tony is a Little. However, he doesn't really like it, and he constantly refuses to let himself slip into his Little headspace.
Not A Good Day

Not A Good Day

M/M
G
Updated
29.04.2025
Fandom
Marvel Cinematic Universe Marvel The Avengers (Marvel Movies)
Characters
Tony Stark, James "Bucky" Barnes, Steve Rogers, Bruce Banner, Clint Barton, Steve Rogers/Tony Stark, Natasha Romanova
Tags
Fluff and Angst Tony Stark Needs a Hug Crying Non-Sexual Age Play Age Play ABDL Diapers Protective Bucky Barnes Infantilism Pacifiers Daddy Steve bottles
Maybe the world just hates Tony today? Or maybe Tony just hates Steve today? Either way, the day that is supposed to be filled with smiles and fun has quickly turned into one of tears and fuss, but whose fault is it really? Tony blames the world. Ste...
babies and daddies

babies and daddies

M/M
G
Updated
29.04.2025
Fandom
Marvel Cinematic Universe The Avengers (Marvel Movies) Iron Man (Movies)
Characters
Tony Stark, James "Bucky" Barnes/Steve Rogers, James "Bucky" Barnes, Steve Rogers, Natasha Romanov (Marvel), Bruce Banner, Clint Barton, Thor (Marvel), Loki (Marvel), Phil Coulson, Clint Barton & Natasha Romanov, Steve Rogers/Tony Stark,
Tags
Spanking Protective Steve Rogers Avengers Family Tony Stark Needs a Hug Wetting Non-Sexual Age Play Cuddling Diapers Tickling baths cries Infantilism
Steve admits that it is sometimes difficult to take care of two babies, but despite all he loves them with all his heart.
Adjusting

Adjusting

Gen
G
Updated
29.04.2025
Fandom
The Avengers (Marvel Movies) Iron Man (Movies)
Characters
Tony Stark, Jarvis (Iron Man movies), Steve Rogers, Bruce Banner, Clint Barton, Natasha Romanov, Mention of: - Character
Tags
Wetting Non-Sexual Age Play Age Play Cuddling Diapers Infantilism Pacifiers Accidents non-sexual infantilism Daddy!Steve Little!Tony Nursery
Even if Tony has accepted to age play, he just let himself do it for short periods of time, not really enjoying it because he's still too ashamed about it. Steve doesn't like that, he wants this to be something stress-free for Tony, so he tries to he...
Carry on my Wayward Son

Carry on my Wayward Son

M/M
G
Updated
29.04.2025
Fandom
Marvel Cinematic Universe Captain America - All Media Types
Characters
Tony Stark, Clint Barton, Phil Coulson, Steve Rogers/Tony Stark, Clint Barton/Phil Coulson, Steve Roggers
Tags
Tony Stark Needs a Hug Non-Sexual Age Play Cuddling ABDL Diapers daddy - Freeform bottles pull-ups Clint Barton Needs a Hug Daddy!Steve Little!Tony daddy!Phil
Tony has crash landed once again, and Steve is there to catch him before he falls into a bad place. A weekend of little time is just what the doctor ordered and, after a few rocky turns, everything turns out awesome!Play date with Clint and Phil!"Car...
The Beginning

The Beginning

Gen
G
Updated
29.04.2025
Fandom
Marvel Cinematic Universe The Avengers (Marvel Movies) Iron Man (Movies)
Characters
Tony Stark, Jarvis (Iron Man movies), Steve Rogers, Clint Barton, Thor (Marvel), Phil Coulson, Steve Rogers/Tony Stark, Natasha Romanov, Steve Rogers & Tony Stark
Tags
Panic Attacks Wetting Non-Sexual Age Play Age Play Cuddling Diapers Infantilism Thumb-sucking Crib Legos non-sexual infantilism Onesies
It turned out Steve knew about Tony's Little side. And more shockingly, it turned out Steve wanted to help him, by taking part in it. Tony wasn't so keen on that idea.(According to chronological order: 1st Part.)