She smiled again at the idea. Traveling around the universe with Jack, in her TARDIS. The Little Girl would love that. She'd probably be even harder to manage than before. "That would be fun," she admitted, her fingers having a mind of their own as she started to play with the collar of Jack's shirt. "She's my home, Jack. My life, now. The closest thing we had to a child." She didn't know why she was telling him these things, they were just coming out on their own.