I Want A Fic Or Something About The Batfamily Where Jason And Dick De-aged Back To Their Robin Days By

I want a fic or something about the Batfamily where Jason and Dick de-aged back to their Robin days by like a wizard or some shit, then Damian and Tim have to look after them... except they mix them up.

There's two little boys with black hair and blue eyes, wearing the same pants-less costume, and both answering to the name of Robin, but one is all wide eyes and wide smile and one has a murderous anger in his gaze and demeanor, so they make assumptions that *obviously* the murder-y one is Jason and the happy little boy is Dick.

Then they get back to the Batcave and Bruce automatically knows which one is which and calls them by the right names. I just think it'd be a total mind-fuck for Tim and especially Damian.