Black Widow, aka Agent Natasha Romanoff, was not a morning person.

Maybe it was the fact she'd woken too many times with various weaponry pointed at her face. Or how many locations she'd been in the course of work with S.H.I.E.L.D. that hadn't gotten the concept of coffee yet.

Then again, it might be seeing Tony Stark's million-dollar, seriously annoying grin before the day had even begun properly.

"Good morning sunshine." He sang cheerfully, immune to the death glare Natasha sent his way.

"Not this morning, Stark." Snapped Natasha in her coldest warning tone. Which Tony didn't respond to either, foolishly coming closer to her. "Well somebody got out on the wrong side of the bed this morn-" He reached out to clap her on the shoulder. Faster than he could blink Natasha twisted, grabbed Tony by the palm the instant before he made contact, applied enough pressure for his bones to creak an alarmed protest, then kicked his legs out from under him. Tony preformed a beautiful 180 degree spin and crashed down, winded, on his back. Natasha glared down at him.

"NOT this morning." Snarled Natasha a second time, stomping off in search of fresh coffee.

Pepper happened along the hallway a few minutes later and eyed a dazed looking Tony, still flat on his back and looking mildly shellshocked. "I warned you not to bug Agent Romanoff before ten in the morning."