"Tribble."

Bruce reaches into his pocket and pulls the little brown furball, which immediately begins crawling up his arm like the world's cutest (and loudest) caterpillar. "Darcy gave it to me. I think she deliberately picked the loudest one in the bunch." He puts it back in his pocket, where it cheerfully rolls around and purrs. He goes to put the tea kettle on. "What kind of tea do you like?"

He's not even sure if Bucky has a preference, if he can't even remember if he used to cook, but he figures it's better to ask.