Dib and Zim became instant rival rather than routine mortal enemies. Dib stated to the alien that he should not be in an opera and that he will find a way to expose him on stage during the public performance. As for Zim, he stated that he will finishe the performance flawlessly, prove that he can fool them, and outshine him in becoming the better actor. A worthy challenge made after their school session.

Zim returned to his house and grumbled beneath his breath. "I will finish this opera even if it kills me!" he shouted after entering the building. As usual the door had been slammed shut and Gir looked to him curiously. "Christine needs boobies!" Gir exclaimed while giggling. "Boob...ies!" Zim asked, bewildered. "Yeah, all the ladies got them!" Gir replied, and gestured to his chest. Zim put a hand to his chin and recalled that ever since the arrival to Earth, he noticed that all of the other taller females had mounds of protuding flesh in their thoracic area. "If I am to portray myself as a mature female, then it seems that the extra flesh is needed," Zim said, and looked down to his own chest, "How can I create these boobies?"

Zim looked to his television to watch a commercial that advertised a special offer for women's underwear by a company called, Viki's Secrets. "Gir...we are going shopping!" Zim exclaimed. Zim disguised himself in the elder man costume as well as Gir disguised as a little boy.

Zim and Gir walked to the mall which had been in the center of town. The walk had been short for at least 10 minutes long. The determined Irken approached the large map near the entrance and found their desired destination. As soon as the odd pair entered the store, they had been greeted with awkward and disgusted stares from the clerks and customers. Zim tried to ignore their stares and muttered comments exchanged amongst the women in the place as he stepped further into the store.

The alien snatched a 32A sized brassier and a small pair of white panties from the shelves to avoid any potential criticism from the women. The act of him donning on the underwear over his clothes had the made the social situation worse. "Look at the dirty old man." or "What a freak!" were the phrases uttered amongst the onlookers. Once Zim had been satisfied with the wares, he excitedly rushed to the purchasing station. The clerk seemed to be more cooperative once he waved a 100.00 bill in front of her face and had been pleasant to him during the transaction. Before exciting the store, the alien glared death into the bystanders and said, "Your time will come soon, pitiful humans!"

Zim and Gir returned to their house after the incident in the mall. Zim released a sigh of relief after he had slowly shut the door, shedding his disguise, and walked into the center of the living room. The shopping bag was settled on the floor with the underwear placed on the couch. Zim looked to the items as he contemplated. "Hmmm...I have the harnesses for the extra flesh but my body does not match the goal. What I need is prosthetics!" he concluded.

"Try these!" Gir said happily while running to the kitchen. The robot returned moments later with sealed plastic bags that contained ground beef and offered them to his master. "Yes, this might work!" Zim said, and grinned. He donned the underwear and stuffed the meat in the compartments. Black gloved hands cupped the experimental "breasts" and provocative "buttocks" and frowned. The fact that they flattened and had a misshapenly bumpy appearance did not satisfy him. "They are not convincing enough, Gir! Try again!" he shouted, while removing the meat from the body and throwing them to the ground.

Gir ran to the kitchen again, but this time returned with four small water balloons. "Hmm...This seems to be better!" Zim exclaimed and accepted the balloons from Gir. The balloons were stuffed into the brassier and panties and for once the appearance had pleased him. "They are smooth...round...and really do look like a female's extra flesh! Success!" he shouted with glee with extended arms in the air. The alien took a moment to hop and down, the jiggling from the prosthetics had increased his happiness. "These prosthetics are excellent! I just need to be careful not to pop them," he said, "I can not wait to show Dib. That will teach him not to underestimate me! I am ZIM!!"