Sippy cub FanFiction

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.)