A/N: Thanks you for all the reviews, guys! :D

Luckily for Natasha and Loki, the city streets had been fairly clear due to a city-wide evacuation Fury had ordered. The lack of traffic allowed for Natasha to drive as fast as she pleased. "I think we're in good shape," she told Loki as she passed Thanos.

"You don't think this motor vehicle is going a bit fast?" he asked her.

"Scared, Loki?" she smiled.

"I'd rather not have to ride in these…" he laughed nervously.

She flashed him an assuring smile. "I've got this-don't worry!"

The two managed to arrive at the Avengers Tower safely, despite Loki being a bit shaken by Natasha's driving. Natasha had lost track of Thanos a few blocks back, so she wasn't too worried. "The only way he can ever get in here is blasting his way in," she reminded Loki. "And this place is fairly indestructible."

"You said we lost Thanos. You don't need to exert yourself," he said as he ran after her.

"I'm fine," she promised. The two began to dart up the stairs until they reached Steve's level of the penthouse. Natasha scanned her ID at the door and she was allowed in. The basic layout was the same all throughout the penthouse, so she had an easy time locating the bedroom. "Easy enough," she said as she grabbed Steve's pencil case from amongst his drawings. "Got it." Inside the case hidden between pencils and erasers was a blue gem stone. She swiped it and placed it in a small compartment attached to her belt. They left the apartment and Natasha led him to the elevator. "Leave it to Stark to want to be all the way at the top."

"And the lab?" wondered Loki.

"That's the next stop." She watched the number's on the elevator's small TV slowly rising. "Shit, the stairs might have been faster."

"You worry far too much," he warned her with a small grin.

"It's not that I'm worried she shrugged. "Just feeling a little rushed."

"We have all the time we need."

"Thanos has a tracker. He'll catch-…"

Loki pressed his mouth against hers to silence her.

When their lips broke apart, she had to catch her breath.

"Tired?" he asked her.

"It's not like me, I know," she admitted as she ran a hand through her short hair.

"You didn't have to accompany me," he reminded her as he held her hand.

"Who else knows this place better than the trained spy?" she slyly asked. "As long as I have you with me…"

The elevator bell dinged and they were in the Stark-Banner lab.

"Beakers… " Natasha breathed as she stared at all of the science equipment. The room had been filled with various science experiments. Lining the walls were tables and cabinets filled with all sorts of equipment. "You know what? How about I take this and you get the gem from Stark?" she suggested.

Loki pursed his lips in disagreement.

"What?" she asked. "According to you, we have time, don't we?" she raised a brow.

"I'm armed," she reminded him. "And it's in a jewelry box, password is 'Tony'- it can't be any easier. Just hurry and meet me back."

"Very well," he agreed. He took one last look at her before he fled.

Natasha decided to give Fury a call, hoping to make her job easier.

"Agent Romanoff?" he asked.

"Is Banner there?" she wondered.

"Fighting off several more Skrulls."

She could hear gunshots which she guessed were of fury's doing. "How are things there?"

"More Skrulls showed up, but we're managing," he growled. "And things over there?"

"No Thanos yet. I just need to find where Banner's hiding place is…" She hesitated. "We'll be there soon," she said before she ended the call. The first place she checked was near the latest projects which had been laid out on the worktable in the center of the room. After no sign of any beakers, she began to check the cabinets, both high and low.

"Any luck?" Loki asked as he appeared in the doorway. In his hand, he held up a red gem.

"Someone was lucky…"

Loki handed the gem off to her to hold onto.

"These guys really need to clean up," she muttered as she dug through a cabinet filled with used beakers and vials filled with chemicals. "Jarvis?" she called out.

"How may I be of assistance, Agent Romanoff?" his voice called out over the PA system.

"Any ideas of where Dr. Banner might've left a green gem? Roughly an inch in diameter…"

"I believe Dr. Banner leaves his more personal belongings in the drawer to your far right," the voice informed her.

Natasha checked the last drawer to her right and sure enough found the gem stuffed inside a beaker amidst crumbled up papers. "Thank you, Jarvis." She smashed the beaker and placed the gem in the pouch with the others. "Good to go," she smiled at Loki. "Aside from Skrulls back at base, the other guys are doing just fine," she added.

"We best hurry, then." He grabbed her hand and led her back to the elevator.

"Well, this was exciting," she sarcastically remarked.

He nodded and laughed. "Indeed."

There was an awkward silence and Natasha stared up at him from beneath her long lashes. "You're part of the team now." A smile played at the corners of her lips. "I heard the Captain."

"I've been redeemed, have I?" he asked, smiling.

"Congratulations." Her lips bushed against his collarbone. "Loki the Avenger. You know, just a little over four months ago, I never would've thought it would happen…"

He quietly chuckled as he held her in his arms. "I never imagined I would have such a change of heart."

"You were in hurting," she said quietly.

"Thank you." He lifted her chin to have her gaze meet his. "You've shown me so much, Natasha."

"Loki-…"

The elevator came to a sudden halt and the lights flickered before the power cut. From below, the two could hear an explosion go off."

"Fuck!" hissed Natasha.

He had found them. Thanos had arrived.