Bucky walked in the room examining his arm. "Hey Tony can you make my arm more flexible?" He asked and Peter pitched in. "Yeah Please Mr Dad sir? It's important."

Tony nodded, "sure."

One Arm Fix Later

"There is that okay??" Tony asked and Bucky smiled. "Let's see."

Peter picked up his phone a started a video and gave Buck a thumbs up.

Bucky turned to Peter and dabbed with his metal arm and asked "is that it?" .

Peter, still filming, yelled out.

"HOLY MOTHERTRUCKING JESUS THAT WAS SO FRICKING COOL,!!!"

Tony just left the room laughing at his science child.