The change is subtle. If one looked away it could be missed entirely. But her face shape softens, her breasts get bigger, and she gasps, looking down. Terra immediately spins around so she's not facing the group, and peeks into her waistband.
Then she starts laughing maniacally. "Yes!!"
"Are you okay over there?" Ellen asks.
Terra bites off her giggles and turns around again. "Yes! Sorry. Yes. I'm great. Absolutely great."
"You gonna tell us what the heck?" Ellen wonders.
"Yes," Terra says. "I guess I did derail my own intro a bit. Sorry about that."
Terra takes a deep breath.
"I'm a high-level gadgeteer. If you don't already know, that's the version of the mad-scientist superpower that's like being psychic about how technology works. I actually have several nanotechnology patents already. Long story short, I wanted to know what it'd be like to be a girl, so I combined several of my medical projects into a nanite colony that could switch my hormone regulation at will, and simulate high-speed stem-cell regeneration. Basically, I could do the same thing Cameron does, only it took about an hour to go each way and or heal grievous injuries."
Terra takes another deep breath.
"Its painful, and has side effects, but I transitioned about a dozen times before... my godmother, she's a supervillain, and she didn't mean to do it, but because of something she did, my whole lab got destroyed and my nanites denatured. While I was halfway through a transformation. I was stuck halfway for weeks, until just now."
Everyone else winces, but Terra just bounces happily in place.
"Thank fuck and thank you. Can I hug you?" she asks Cameron.