Luke/Thirteen
"Twins! Tha's brilliant," she grinned. "I was a twin once. Well, for a month or so. Then they merged me back together." She took a drink from her cup and laughed. "It's important to have family, though. M'glad you found each other- but why were you separated in the first place?"
That seemed odd, especially for a twin. The Doctor had to assume it was something tragic, and she was curious to learn more about these mysterious Jedi twins and where they came from.