Chapters: 13/? Fandom: Marvel Cinematic Universe, The Avengers (Marvel Movies) Rating: Mature Warnings: Creator Chose Not To Use Archive Warnings Relationships: Loki & Tony Stark, Tony Stark & Thor, Loki & Thor (Marvel) Characters: Tony Stark, Loki (Marvel), Thor (Marvel), Clint Barton, Natasha Romanov (Marvel), Bruce Banner, Steve Rogers, James "Bucky" Barnes, James "Rhodey" Rhodes, Jarvis (Iron Man movies), Captain America - Character, Pepper Potts, Nick Fury Additional Tags: Age Regression/De-Aging, De-Aged Tony Stark, Tony Stark Needs a Hug, Magic, Fluff, Tooth-Rotting Fluff, Family, Family Bonding, Thor (Marvel) is a Good Bro, Loki Has Issues, James Barnes has issues, Angst, Fluff and Angst, Cuddling & Snuggling, Not Avengers: Age of Ultron (Movie) Compliant, Not Captain America: The Winter Soldier Compliant, Not Captain America: Civil War (Movie) Compliant, Protective Thor (Marvel), Protective Loki (Marvel), Protective Bucky Barnes, Howard Stark's A+ Parenting, Odin (Marvel)'s A+ Parenting, Awesome Frigga (Marvel), Alternate Universe, Alternate Universe - Canon Divergence, Kidnapping, Captain America - Freeform, Sneaky Natasha Romanov, Sneaky Clint Barton, Boop the Kitten, Other Additional Tags to Be Added, some foul language, Minor Original Character(s), Heimdall (Marvel) Lives, lady sif - Freeform, tea on tuesdays, Bucky Barnes's Metal Arm, Murder Kitten Bucky Barnes, Not Thor: The Dark World Compliant, Not Thor: Ragnarok (2017) Compliant, Marvel Norse Lore, Hel - Freeform, Fenris - Freeform, Jormungand - Freeform, Nick Fury is Not Amused, SHIELD, Vanaheimr | Vanaheim, Revenge, taking the scenic route to any romance, WinterFrost eventually Summary:
“Cease your fussing,” he said softly as Tony buried his head in Loki’s shoulder, “and let us go find you something clean to wear. I am sorry that your mother and friends are gone, but you will be alright, Anthony. We will take care of you.”
Tony gets hit with a permanent de-ageing spell, and the rest of the Avengers (and SHIELD) prove to be less-than-suitable guardians. Thor summons a pardoned Loki and returns from Asgard to pick up the parenting slack, and hopefully to correct the damage that Howard left, while their little family slowly grows along the way.