A/N
I know this one probably sounds like A Son He's Always Wanted but the idea came while watching Sky High tonight, and imagined Platyborg being turned into a baby but Perry is raising him, but he has no memory of being Alter Doofus's partner.
After being hit by the Age-inator, Platyborg becomes an infant but Perry decides to raise him, teaching him to be good.
I hope fellow Perry fans enjoy.
Platyborg watched, as Perry and Doof were doing their usual routine along with Phineas and Ferb as they were in awe at the turquise furred male's skills but saw Doof's new inator, the Age-inator.
"Go, Perry!" Phineas told him.
Platyborg smiled at this, but saw a stray beam about to hit Perry, but pushed him out of the way, letting it hit him, as the inator blew up.
But both Doof and Perry heard infant like crying from where Platyborg was, but gasped seeing a turquise furred infant with a metal eye and a robotic paw.
"Wow, what happened to him, Perry?" Phineas asked.
Perry turned on his translator, picking the infant up.
"It turned him back into a baby, Phineas.
We should get him checked out." he replied.
Doof then saw him follow him into his lab, with Platyborg in his arms, but the infant platypus had calmed down, in Perry's presence.
"Good boy, Platyborg." he said as Doofy was checking him out.
But he saw a frown on Doof's face.
"He won't change back until he's twenty one, Perry.
Whatcha going to do with him?
We could dump him at a shelter." Doof said.
"No, No we can't.
I'll raise him." Perry told him.
Phineas understood the turquise furred male couldn't bear to drop his alter self at some shelter, but proud of him.
"Ferb and I can help, Perry." Phineas told him.
"Thanks, guys." he told him.
Perry then took a bag full of diapers and bottles along with a pacifier, as he left with his owners.
Perry walked into his underground base, holding the infant Platyborg in his arms, wrapped in a blanket but he needed supplies as he activated a crib, placing the infant in it, but couldn't help but smile as he was innocent right now, and liked him that way.
"He's pretty cute, huh?
Hard to believe he helped Alter Doof?" he heard Phineas say.
The turquise furred male agreed, placing a paw to his bill, inducating to the boy that they should be quiet, but they went to make Platyborg some milk.
He had a baby monitor app o his watch, enabling him to hear if Platyborg was awake.
He was humming something, while sterlising the milk, but Phineas noticed that he seemed peaceful.
"I guess this could be a good thing, huh Perry?" he said.
"Yes, Yes it will." he replied.
He then headed back to his underground base while Phineas went to his and Ferb's room.
