Kate and Thirteen
"I think so, too!" Kate grinned over at the Doctor, really thankful to have found a partner in crime for this adventure. Or someone to follow into adventure. Or someone to follow her? No, Kate wasn't the leader in this pairing. This was definitely a Doctor leads, Kate follows scenario.
"That's so cool! Amazing!" And then... "Angel dust?" Kate frowned. "Like, some kind of drug? Is that another word for LSD??"