He wanted to think that she was being far too enthusiastic about something so simple but the brightness of her smile and her innocent enthusiasm made it hard for Bucky to hold onto the notion for very long. If it had actually made her happy she deserved to be allowed to feel that. He slipped his hand into his front jean pocket but left his thumb out to idly rub against the fabric.

"... it's short for Buchanan." He said it a bit quieter than he'd meant to. It wasn't his first or even last name, but it was still a small piece of his identity. Was it okay to give out something like that?

Bucky just looked at her when she offered him the prize she'd wanted to begin with.

"Keep it." First he was too quiet, then he was responding too fast. He looked a bit frustrated at himself for a flash of a second and leveled his voice. "You'll take better care of her than I would."