Katta was born seventeen minutes before Sadde, so of course Sadde's bouncing—physically bouncing, jumping up and down—right next to him and waiting for the right second.
"Did you get it yet?"
"So I can swap with you and take your face? Or, wait—mooooom can I use you as test subject?"
"—I have to agree with Katta, sweetie, it is somewhat disconcerting to see someone else with my—everything."
"...I didn't need to be looking at you to feel you, hmmm—" He turns around. "And there's something different, too—"
And this time instead of swapping he appears right in front of Katta, looking like himself again. "Awesome."
"No, silly, I'm designing it, you'll just be the one to give me it when I need it."