A/N: Thanks to everyone who reviewed and a special thanks to That Creative One for the idea. Please review. I don't own the Avengers. I hope you enjoy.

Day 6

After spending several hours in the shower with a bottle of soap and a scrub brush, Tony had gotten most of the white-out off of his skin and in a surprising turn of events, some of the blue had washed away as well. As soon as he pulled on a pink pair of jeans and a red tee, Tony ran to Clint's room and knocked on the door.

The archer opened the door with a raised eyebrow. "What now?"

Tony crossed his arms over his chest and said "You are going to help me prank Natasha."

Clint's mouth curled up on one side. "And why would I do something so stupid?"

"I will buy you three new quivers, all full to the brim with arrows, and I'll design some new features for your bow."

Clint considered it. "Four quivers."

Tony grinned. "Deal!"

Clint smiled. "It's a good thing Tasha went for a run or you'd be in some serious trouble right now."

Tony paled at the thought. He hadn't even considered what might have happened if Natasha had been with Clint. Clint stood aside to let Tony in so the two could figure out what prank they might do next.

Clint paced his room as he prepared himself for what he was about to do. Tony had thought it might be the prank to get Tasha, but was it worth scaring her and possibly making her mad at him for eternity? Well, there was no backing out now, everything was already in place. All Clint had to was crawl into the air vents and tape everything.

Clint snuck out of his room and boosted himself into the air vents outside of Tasha's room. Was scaring his girlfriend going to do him any good? Probably not. Did he really need new arrows? Most definitely. Plus, he could probably make it up to her in some way.

Clint crawled through the vents and peeked into Natasha's room, the camera in his hand angled down. Natasha had long since removed the cameras in her room and Tony knew it. Clint scanned the room and frowned. He had left a glass cage full of tarantulas in the center of the room, but they weren't there. What?

There was an almost inaudible puff and a white mist filled the air vents. Clint gasped despite the fact that he knew it was a terrible thing to do. The air filed his lungs and he coughed, dragging in another lungful of the substance. His vision dimmed and an overwhelming urge to sleep came over him. His face pressed into the cool metal of the ducts and he passed out.

When Clint woke up, he was surprised that he was still in the duct. He was sure that Natasha would have let him fall out of the air vent and then enacted her revenge. A slight hiss made him pause as he turned his attention to the space in front of him. A snake at least two feet long was curled in front of him, its ugly mug watching him.

Clint let loose a howl and promptly fell through the vent and onto the couch that had been placed under it. The snake fell with him and Clint was off the couch and out the door before it had time to find its way from between the cushions.

Once safely inside his room, Clint found a note taped to his bow and gulped audibly. "You are in SO much trouble."

Tony entered his lab, wondering if Clint had gotten the footage of Natasha. He pulled up his latest experiment on the computer and was well into it when he heard a growl behind him. Tony froze, the sound all too familiar. A sound that haunted him to this day.

As Tony turned and saw the animal that had made the noise, he fell out of his chair. A St. Bernard at least as tall as his lab table glared at him from across the room. The mutt wore a black collar with a spider on it. A Black Widow.

Tony backed to the other side of the room and fell over the couch. The door opened and Natasha entered the room. "Oh, thanks for finding Seth; I've been looking all over for him."

"Y-you've got a dog?"

"Yeah, people keep breaking into my room and I thought he might keep intruders away."

"Oh, I see."

Natasha pulled a folded piece of paper from her pocket. "Someone left this on your door."

Natasha whistled to the dog and they left. Tony looked at the paper. "Did you really think it would be that easy?"