Rhiannon took his hand automatically, before her mind could process the name. Her eyes widened, and she brought her free hand up to her mouth to hold back a giggle.
"Rhiannon St. Claire. And that's why I recognize you! You're in the TARDIS archives. The Doctor - my Doctor, at least - said you were off arguing with the world-builders at the Terabos Aerad. Not something to interrupt."
Her eyes were bright with a mix of awe and glee and interest, and she bit back another girlish giggle, sternly telling herself to stop acting like a teenager with her first crush. Really.