Tony didn't know when to stop. "Besides, I still have to uncover the secret of your underwear."

By this point, Bruce was almost growling at Tony, the facial muscles just a twitch away from snarling at him with bared teeth. Natasha put a hand on Tony's arm, but that didn't stop him from winking at Bruce.

"I can try the other way." One of Bruce's hands broke from the coffee mug and rushed to the edge of the table as he leaned forward. The table cracked under force. Bruce grumbled threateningly and looked Tony straight in the eyes, warningly.