It happened when Peter was 1 and a half. Tony's favorite memory happened when Peter was one and a half.

He had the curliest hair and these huge bambi brown eyes that just took your breath away. He was small for his age, still is. Peter is 3 now and Tony still about lost it whenever the kid would haul himself up and start taking wild steps.

His favorite memory started with Peter crawling over to the TV.

Tony and Steve were sitting on the couch watching the news until it was time to put Peter down for bed. Tony watched as his son crawled over the floor, dragging toys with him. When Peter made a beeline to the TV stand and his hand reached out to one of the draw handles, Tony slapped Steve's arm and made him watch Peter.

He had gripped the cabinet and lifted himself off the ground, his chunky legs were separated by his diaper clad bottom.

"He's standing." Tony whispered. He could see Steve's smile in the corner of his eye.

Peter had pulled himself up to point at the TV. His chubby finger was still on the TV when he turned his head and dropped the pacifier from his mouth and looked directly at Tony.

"Dada." He said.

Tony giggled and smiled at the boy, "Yes that is me, Pete."

Peter smiled with his gums and bent down to pick up his pacifier.

Tony slid off the couch and spread his legs out, "Alright Petey, look at me bud."

Peter turned and watched the man with curious eyes.

"You are a Stark buddy, we never do things on time. So come on, blown my mind here bud. Walk to me." Tony bargained.

Steve snorted from the couch, "He just stood up for the first time what makes you think hes going to walk."

"Uh, because hes awesome. Probably going to walk better than you." Tony shot back.

Peter made a gurgling sound and turned fully towards Tony, once his hand let go of the cabinet handle he fell onto his butt. But he was smiling the whole time. He put both hands on the ground and pushed himself up. His own weight seemed to shock him, and he fell again.

Tony could see tears building in his eyes.

"Hey hey, I know weight is shocking. Plus, you weigh a ton bud. You are made of steel I swear. Just do what you did before and see what happens." Tony reassured him.

Peter cocked his head at Tony but put both hands on the ground again, he pushed himself up and held himself there for a while.

Tony's heart stopped when he watched Peter put on foot forward. He almost reached out to catch him when Steve placed a hand on his shoulder.

Peter made a small giggle and put another foot forward. He was maybe a step or two away from Tony now.

"Steve…he just…" Tony said with the biggest smile on his face.

"Tell him to come to you." Steve suggested.

"C'mon bud, come to Daddy. You are almost there!" Tony cheered on.

Peter smiled at Tony and reached his hands out for the man, he took one more step and then fell towards Tony.

Tony swooped down and caught him in his arms.

"You did it! You took your first steps!" He peppered the boy's face in kisses and made Peter giggle.

When Tony laid the boy down to sleep that night he caressed the boy's cheek and whispered down to him, "I will remember tonight forever. And if I have terrible dementia in 40 years, Friday will play it over and over until my last day."

He heard a laugh from the doorway.

"Shut it Steve, don't ruin my favorite memory right now." Tony said over his shoulder.

He placed a kiss on Peters head and turned the light in the room off, and went to bed feeling like an extra proud Dad.