Tara was grinning widely as Jack joined her at the table. If she'd had coffee in her mouth the next moment, it would have ended up all over her front as she started giggling at his greeting.
Covering her mouth for a moment as she let the giggles subside, she shook her head. Collecting herself, she placed both hands on the table and nodded.
"Well," she began, meeting Jack's eyes. "Technically you didn't travel inside of me. You traveled inside of my shell, through the use of the computer systems." She paused to let that sink in. "I'm the soul of the TARDIS, I contain the heart. I make everything go whoosh whoosh!" She mimicked the sound nearly perfectly.
And that, Jack, is probably the strangest thing you've heard all day.