Bruce is brewing his well-earned cup of chamomile tea in the large joint kitchen when Steve, Bucky and Clint come bursting into the adjoining living room (in that order) like the hounds of hell were on their heels.
Clint proceeds to collapse into a pile on the couch, gasping for air, while Steve and Bucky watch on in silence, Steve looking a little concerned, and Bucky looking a little smugger than a brainwashed man has a right to. Then again, three months with the peanut gallery incarnate (Pepper included, if she lacked enough sleep) has a way of rebooting a person's brain functions as a whole.
Sam should use them as a form of rehabilitation for some of his patients, he contemplates, before rejecting the thought altogether. It takes a special brand of screwed up to survive the Tower's inhabitants.
"I would *puff* totally have *wheeze* won that fuh-*cough*-cking race if you two assholes *gasp* were human!" Clint's weak voice comes from where his face is buried in the couch, his finger pointing accusingly where he assumed Steve and/or Bucky was standing. He ended up pointing at a fake potted plant in the corner of the room, but it was the thought that counts. Steve just cooed "We are human. In fact, we're super human." which made Clint groan and flap his hands uselessly in an attempt to smack Steve in the leg. Steve just chuckled and avoided his hands, reaching over to ruffle Clint's hair and tell him "Better luck next time, son."
Bruce just leaned on the island and watches in amusement as a slapping contest ensues between the prone figure that was their archer and the giggling mess that was the fearsome Captain America. Bucky joins him shortly, getting a cup of water for himself.
They both end up watching the scene before them, which was getting more and more ridiculous as Clint continued to bat at Steve from the edge of the couch even though he was in perfect condition to get up and off the damned furniture. It was then that Bruce heard a soft humming coming from beside him.
He blinked in surprise as he realised three things. One, there is only one person next to him. Two, that person is Bucky. Three, Bucky has an amazing baritone. He doesn't have time to contemplate much else as Bucky abandons his empty cup on the island (really? is Bruce the only responsible adult who knows how to handle his own dishes?) and heads over to the couch, using one foot to successfully tip Clint over the edge of the couch and onto the floor.
"Hey! What if the floor was actually lava?!" Clint cried out in indignation.
Bucky crossed his arms. "Then I guess Steve and I would win round two by default." He said cockily and raised an eyebrow. Clint blinked, before vaulting over the couch and sprinting out of the room, shouting over his shoulder "10 second head start!"
Steve and Bucky shared a look, counting to ten silently, before tearing off to catch up to the archer. Bruce just shrugs and heads off to the lab after putting his and Bucky's dishes in the dishwasher.
The song was stuck in his head for the rest of the day.