(Lucy and Zim get into their human disguises and head over to the Skool. There, they go inside and find Ms. Bitters' classroom. They step inside)

Ms. Bitters: Zim! I told you, do NOT bring your hideous friends to Skool!

Lucy: I am NOT hideous you old roach!

(Ms. Bitters flinches)

Zim: She's new. She's my sister.

Ms. Bitters: (sigh) Fine then. Take a seat next to Zim...

(As Lucy heads to her seat, she flashes an evil stare at Ms. Bitters)

Dib: Great! Look at that! Yet another reason that I'm NOT crazy! Look at her! Take a good look! Practically twins! Aliens, the both of them!

(Lucy leans over to Zim)

Lucy(Whispering): Who is that fruit loop?

Zim(Whispering): That's just the Dib-stink. He knows who we are.

Dib: See? SEE!? They're conferring in their ancient alien tounge!

Lucy: No, I just called you a fruit loop!

(Zim laughs)

Random Kid: She's right, Dib. What if they're sister and brother and they just have the same skin condition, huh?

(Kids nod)

Dib: But... but... Oh, forget it. When the world crumbles and it's all their fault don't come crying to me.

Ms. Bitters: If you're done now, Dib, I'd like to explain the odds of a catastrophic explosion, reacting in the overall destruction of our planet.

(Lucy waves her hand in the air)

Ms. Bitters: What.

Lucy: Out of ten, how many humans would you say have allergies?

Ms. Bitters: Your stupid question doesn't mean anything to me, Lucy.

Lucy: Fine, you crippled witch...

(The Skool bell rings and the two Irkens exit the doors in a hurry with their notes they had scrawled down at recess)

Zim: I saw an Earth smeet breathe near a small plant, and it reacted quite strangely.

Lucy: What happened?

Zim: It started choking and gasping and fell to the ground, writhing in pain! AHAHAHA!

(Both of them start laughing. Lucy recovers from laughter and looks around suspiciuosly)

Lucy: Let's get out of here before Dib finds us...

(Zim nods and they go back to Zim's house)

Zim: Finally. It's insane how long it takes to get back here. Anyway, what information did you gather, Lucy?

Lucy: Well, uh... Nothing much...

(Lucy sweats as she remembers the hearts she had doodled in her notepad)

Zim: Yes? What did you find out?

Lucy: Um... That when they sneeze, they need tissues...

(Lucy is having difficulty reading her notes under all the Lucy+Zim 4ever doodles)

Zim: Okay... But how will that help...?

Lucy: Oh! I know! I can invent a machine that makes tissues that induce allergies, and not prevent them! Every human who uses them will fall to our power!

Zim: Good idea! When can you get started?

Lucy: Heh-heh... When can I get started? The plan begins... Today!

(They both rush over to a pile of crazy machinery and random parts)

Lucy: Mm-hm... Mm-hm... Perfect!

(Lucy grabs two armfulls of gadgets and stumbles under the weight of the stuff as she approaches the inventor's table and almost falls)

Lucy: Whoa... WHOA!

(Lucy does fall and lands under a pile of machinery)

Lucy: Ow...

Zim: Lucy! You okay?

Lucy: Yeah...

(As she gets up Lucy stares into Zim's eyes and suddenly remembers everything...)