"-Oh and then there was that time just after Budapest-" Tony attempted to hold back a snigger. Natasha looked at him like he'd gone crazy. "What?"

"Oh, nothing." Bruce said hastily, jabbing Tony in the ribs while barely managing to control his own laughter.

"Hey, why don't you tell us about Budapest?" Tony said, his mouth twitching.

Clint frowned at them, his eyes calculating.

"Stark, did you hack the S.H.I.E.L.D. security system again?"

Tony and Bruce dissolved into a fit of laughter. "Bruce helped." Tony smirked.

"That information is classified!" Natasha protested.

Bruce grinned. "Yeah, and for a good reason."