A/N: I choose to do Numbuhs 3 and 4 first because I felt I haven't been doing enough 3/4 ships. I like this ship and thought it would be fun to try making a whole story about them. Also I know I haven't finished Operation: New Operative yet but Numbuh 178 is in this story anyway. This story takes place like the end of Operation: New Operative never happened. I own nothing except Birchwood and Numbuh 178.

Chapter 1: Cupid's Annoyed

"Numbuh 4! Give me back my rainbow monkey!"

Numbuh 3 chased Numbuh 4 around and around the living room of the tree house.

"Come on Numbuh 3, you're 15 years old. You shouldn't play with rainbow dorkies." Numbuh 4 said running faster.

"Please Numbuh 4! That's my favorite one!"

Numbuh 5 looked at Numbuhs 1 and 2. Numbuhs 3 and 4 had been doing this for the past 15 minutes. The boys shrugged at her. Numbuh 5 rolled her eyes and got up. She went over to Numbuh 4, snatched the rainbow monkey from his hands and gave it back to Numbuh 3.

"Numbuh 4. If you like rainbow monkeys so much, go buy your own." She said.

Numbuhs 1 and 2 started laughing and Numbuh 4 turned red. Numbuh 3 stuck her tongue out at him and flounced away to her room. 2 minutes later the rainbow monkey song could be heard throughout the tree house.

"Oh great!" Numbuh 2 said putting his hands over his ears. "Nice going Numbuh 4."

"What did I do?" Numbuh 4 snapped.

"Numbuh 3 only plays the song when she's upset." Numbuh 1 said. "Go cheer her up, or we're going to have to listen to the song all afternoon."

Numbuh 4 stomped out of the room and down to Numbuh 3's room.

"Stupid girl. Stupid rainbow dufus. Stupid pretty Japanese girl."

"Pretty?" A smug voice behind him said.

Numbuh 4 whirled around and saw... Numbuh 178.

"So Numbuh 3's pretty huh?"

Numbuh 4 turned red. "I didn't mean to say it."

Numbuh 178 raised an eyebrow at him. "Right. Well I guess it's you that put Numbuh 3 in a bad mood."

"How do you know she's in a bad mood?" Numbuh 4 asked.

"Please. She's playing the rainbow monkey song for the 5th time. Go calm her down before the others go insane."

Numbuh 4 glared at her and stomped away.

"Cruddy girl." He muttered.

Numbuh 4 stood outside Numbuh 3's door, rolled his eyes and walked in. Numbuh 3 was lying on her bed hugging her rainbow monkey. She looked up as Numbuh 4 came in.

"What do you want?" She asked harshly.

Numbuh 4 mentally flinched.

"Look Numbuh 3. I'm sorry. I shouldn't have taken your doll. I'll never take any of your dolls again."

Numbuh 3 looked surprised. "Do you really mean that?"

Numbuh 4 nodded. "You should be able to play with dolls for as long as you want."

Numbuh 3 smiled, jumped off her bed and hugged him. His face turned bright red.

"Thanks Numbuh 4. I forgive you."

"Er right. Well I have to go do the thing with Numbuh 2. Bye!"

Numbuh 4 ran from the room. For a second Numbuh 3 looked hurt but then she shrugged and turned off the rainbow monkey music.

Cupid's Castle:

Cupid almost spit out his tea as he watched Numbuh 4 run from the room.

"Stupid boy blew his chance." He shouted. "That's it! I've had it with those kids. They're giving me heart burn."

Cupid snapped his fingers and a small elf appeared at the door. "Yes sir?"

"Get me my magic bag, my bow and arrows and a sandwich for the road."

"Are you going to get the Japanese girl and Australian boy?" The elf asked timidly.

Numbuhs 3 and 4 were well known in Cupid's Castle as having huge crushes on each other but never admitting it.

"No. I'm getting the Japanese girl, the Australian boy, that Irish girl, the American boy, the British boy and the African-American girl. I'm getting heartburn watching them secretly love each other and never say anything. Also I have to deal with that British boy's fat girlfriend."

The elf gulped. "That's a lot to deal with by yourself sir."

"Who said I was going by myself? What's your name?"

"Birchwood sir."

"Birchwood, you're coming with me. Now get my things."

Birchwood bowed and hurried out the door.

"Get ready Sector V." Cupid muttered. "Things are going to start to happen."

A/N: Review!