I am looking for a Darcy/Steve/Bucky de-aged fic.
I think Darcy and Steve were dating but Bucky wasn't happy about it.
Bruce had a accident in the lab and they all got de-aged (not bruce he turned into the hulk)
Natasha and Sam took on mom and daddio roles.
it was really sweet.
the 3 main ended up slowly aging up.
it had major polyamorous tones, but they were down played as DARCY/steve/bucky are young kids for most of the fic.
there was uncle tony and guest cameo by tutor spiderman.
I really want to read it again now that I can't find it.