"TAK?"
Indeed it was. At his door, there stood Tak, though in her human disguise. Mimi, her SIR robot, stood right next to her in cat disguise.
"Yes, Zim, it is-" She began, with a slightly cynical grin.
"TAK?" He cried again.
Blinking once, she tried again, "Yes, Zim, it is-"
"TAK?"
Trying again, struggle clearly noticeable in her tone, "Yes, Zim, it is-"
"TAK?"
"YES! I'm Tak!" She shouted, completely exasperated.
"Oh." Pause. "GIR! Minimoose! Defensive mode!"
Looking up from the show, GIR squealed and leapt through the nearest window. Minimoose paused, looking from Tak to the window, then back at Tak, then the window, and back to Tak again…and promptly leapt out the window.
After a moment of silence, Tak cleared her throat. "Right. So, after miraculously surviving being thrown through space in a tiny pod, I have come to realize that you are truly the greatest Irken Invader ever."
"Yes. Yes, I am." Zim glowed in her praise, then blinked once and looked suspicious. "But the first time you came here, you were after revenge for me causing your horrible life."
"IT WASN'T ABOUT REVENGE!" Tak cried, before regaining her composure. "I mean- that fight proved yourself to me. You deserve your mission." Grinning broadly, with a twitching eye that Zim didn't notice. "So I decided that instead of fighting against you and wasting your valuable invading time, I decided to become your henchman." Her grin broadened even more, which Zim took for sincerity, but most others would find disturbing.
"Hm…well, you are a good Invader. But not good like me, of course." At which Tak's eye twitched unnoticed again. "You will make a valuable servant." Zim nodded to himself. "Alright then."
Tak's eyes narrowed and she began to cackle. "Excellent…" More cackling. "Excellent!"
Feeling vaguely uncomfortably with the evil cackle, Zim started to laugh as well. "Ha…Ha ha ha…ha ha ha ha…HA HA HA HA HA!"
After a while, Tak stopped, staring as Zim continued to laugh.
And laugh.
And laugh…
A/N: Please bare with me, folks. It's my first Invader Zim fanfiction, so I'm not as…comfortable (not the right word, but close enough) with the characters as I am with ones I've used a lot.