sleeplessinbudapest, Destined627 , immy01, LoneWolfOneill, and DanielaHC : Thank you for your kind review. I glad that you like the last chapter. I got to admit that I'm not good at implied smut/smut.

New following and favouriting : Thank you to you guys too. I will keep up the good work.

It's only a month to Captain America: The winter soldier. I don't know I'm gonna survive or not

Okay, Let's enjoy the chapter :)

Update/rewrite : 5 March 2014

6 : CAPTAIN AMERICA VS. IRONMAN

The soft breathing of her boyfriend stirred Natasha Romanoff awake. When her eye opened, she looked at the soldier and smiled, hugging onto him.

"Morning, handsome" she whispered. He smiled too, his eyes still shut.

"Morning, sweetheart. Get lonely last night?"

"Very. My sleep is now not possible without my hunky super soldier near me"

"It's too bad you can't just come around without sneaking. Stark would spoil any private moment we have"

"Which makes me wonder, has JARVIS caught me sneaking in to your room?" She asked "It's more fun this way and the Black Widow never does normal, but I imagine there's a camera around here somewhere"

"There is, I'm afraid Agent Romanoff. But I promise I will not disclose to anyone yours and Captain Rogers activities. All feeds from your floors are now encrypted"

"Thank you, JARVIS" Natasha said before crawling back into Steve's arms.

Steve soon continued with his sleep while she was watching him. She could watch her boyfriend like this for a day.

He was sleeping soundly next to her so she left a note for him. He always panics when he can't find her in his bed when he wakes up.

'I'll be at gym. See you there, babe —N'

She got up and changed her clothes before picked up his iPod from the end table. The spy pecked her boyfriend's cheek and left the room.

The gym was empty. She sat down on the floor, put the earphones on and started to listen to music. His taste in music always makes her smile. Yeah, her boyfriend loves love songs.

The first song on his playlist was 'I'll know you' by Son of Sylvia. She had to go through all of the song in his iPod.

The gym door opened and it diverted Natasha's attention. The huge figure of her boyfriend was standing in the doorway.

"So that's where my iPod went. What happened to yours?"

"Yours has better music"

"You use most of my things already" He noted. "My iPod, my reading glasses. And if I'm not mistaken, that's my shirt"

"It's comfy. Makes me feel you're holding me"

Steve smiled, put down his towel and sat beside her. He started to wrap tape on his hands while Natasha kept going through his playlist.

"You listen to very cute songs, Steve. For a man your size"

"When you are in love, any crazy stupid love song can make you smile"

"Let's see" She said and skipped to the next song "Nicki Minaj, really?"

"Clint and Tony made me do it. They said something about karaoke night…"

"Never go with Clint and Tony to karaoke night. Last time- actually, I don't think you'd want to know"

The pair stood up and Steve wrapped his arms around her waist.

"I'm thinking about keeping this iPod until I listen to every song on it because I'm pretty sure that these songs make you think about me and I really want to know what you think about me, soldier boy" Natasha said.

"I can ensure you one thing, beautiful. Every love song makes me think about you"

She giggled and held her grip tighter on her boyfriend. They started their training session before others joined them.

"You guys wake up way too early" Clint noted.

"What are you guys are listening to?" Tony followed Clint into the gym. "Wow Rogers is still into love songs"

The captain chose to ignore and turned his attention back to sparring with Natasha but the billionaire didn't give up taunting him. It was Natasha who had enough of Stark teasing them.

"Stark! You and me in the ring now!" She angrily said.

Steve put his hands on her shoulders "Let me take care of this one, Natasha"

"Alright then. A firm punch from you will hopefully shut him up for the rest of the year"

Clint pushed Tony into the boxing ring. Steve followed and put on the boxing gloves while Tony put on all the protective gear.

"Can I at least put on my gauntlet?"

"No" Steve replied before swinging at Tony.

But the billionaire dodged because he not yet finish with his negotiation.

"Easy capsicle I'm not finished yet" Tony said "You have your super strength but I have nothing"

"If you win, you can run your mouth all you want. I win, you leave me and Natasha alone"

"If the stakes are so high, I think I need my armor now"

The Captain nodded in agreement and picked up his shield too. The rest of the Avengers filed around the ring, with Clint in Tony's corner, and Natasha in Steve's.

"Be careful" she whispered before Steve went to centre ring to begin.

The match began, with Tony attempting the first punch. Steve dodged and swung his own. It made no impact on Tony's armour, and in response hit Steve in the stomach.

"Strong man indeed, but no match for my tech. I think I may just win this fight"

"Well, if that's the case, I may have to reveal some tricks up my sleeve" he replied, reaching his hand out, as if he was summoning something.

Everyone looked confused.

"What's the hell you are doing?" Tony asked.

The answer finally arrived and hit Tony in the back. Mjölnir, Thor's hammer, flew into the hand of Captain America. Everyone look shocked.

"How are you holding that? Not even Banner could"

"Lord Stark, the hammer may be lifted by those worthy. And Lord Steven has proven he is indeed worthy"

Steve clanged the hammer against his shield and took a fighting stance

Tony charged in but Steve quickly steps aside and swung the hammer at Tony's abdomen, causing Stark to fly out of the ring.

"Tony! What the hell are you doing?!" Pepper yelled when she came into the gym.

"Screw the rule!" Tony shouted and used his boots jet to tackle Steve, causing the captain to fly of the ring as well.

Natasha jumped when she saw her boyfriend get hurt but Steve managed to get up and threw Mjölnir at Tony.

"Stop this now!" Pepper yelled but they didn't listen.

"Time to die Stark!" The captain slammed his shield into Tony's face.

"Not today, Capsicle!" Tony shot his repulsor ray but Steve easily deflected it.

Tony's metallic hand cracked against Steve's head, causing a split and blood to come out. Natasha saw enough.

"Steve, please stop!"

Captain America lost his focus and turned to his redheaded spy. He could see fear in her eyes. Tony took this opportunity to shoot at Steve, which hit him and flung him out of the ring

"STEVE!" Natasha rushed over to her boyfriend who was unconscious and lifted his head up as the others ran over as well.

"You could have killed him!" Bruce yelled, kneeling down on Steve's other side to attend to the soldier.

"What the hell you think you were thinking, Tony?" Clint also had to say something.

Thor summoned his hammer and swung it at Tony, sending the billionaire into the wall.

"Steve…" Natasha called and shook his body lightly "Wake up, Steve"

"Let's me see his wound" Bruce told.

Natasha stood up to give Bruce some room. Clint saw her clench her fists, and her body shake with anger. He went to Pepper and took her arm.

"It would be best if we were out of her way" he said and pulled her out of Natasha's way.

Tony got himself out of the wall and out of his armor. The armor has a little scratch because of Mjölnir It also left some dent on the chest plate and he had some bruises on his face.

"STARK!" Natasha angrily growled, causing the billionaire to jump out of his skin.

Natasha marched to Tony who couldn't go anyway and stepped back until his back was against the wall. Thor stood behind her, in the event Tony might defend himself.

"What the hell were you thinking?! You could've killed Steve! But you probably didn't care, did you?! All to win some dumb bet!"

"Hey! I didn't think…"

"I told you, do not use your repulsors, but what did you do?!"

"He's the one who summoned the freaking hammer!"

"You wore one of your suits while he only had his shield!

"ENOUGH YOU MOTHER FUCKER!" a voice boomed from the doorway. The yell silenced all form of noise.

Nick Fury walked in. Fury looked angry as he walked into the gym, towards the commotion.

"Dr. Banner, how is he?"

"I'm not quite sure, director. He's alive, at least"

Natasha returned to her position beside Steve as Fury walked over to the billionaire.

"Would you care to inform me why you attacked one of your fellow teammates, your captain in fact, so I may proceed with the appropriate punishment."

"Hey! Why is it all my fault?!" Tony defended. "We made a bet! I was just trying to win!"

Before Fury could respond, a moan of pain caught everyone's attention.

"Steve?" Natasha said, a tone of hope in her voice..

His blue eyes slowly opened and Natasha sighed in relief.

"I'm alright. Would feel a whole lot better once I finish Stark off"

"Wanna finish our battle? Last I checked I was kicking your-" Tony retaliated, causing Pepper to whack him over the head.

Fury folded his arms before he said,

"Rogers, Stark. follow me. We need to talk"

Tony sighed and followed the director. Steve stood up and, giving Natasha a quick smile, walked out as well

"So tell me why we're you two fighting in the first place?"

"It's a personal matter, Sir"

"It's no longer a personal matter when two of my best assets begin assaulting one another"

"It was simply ironing out some issues. It won't happen again"

But Tony was still mad at Steve so he told him the truth.

"We'll, I was more curious as to the relationship between Rogers and Romanoff, Fury. They're very close"

Steve glared at Tony and tried not to attack him again. Fury turned to look at the Captain directly.

"Stark indeed has a valid concern" The director admitted "Captain, anything you want to tell me about your relationship with Agent Romanoff?"

"No, sir. We're very close friends. That's all"

Fury kept looking at Steve but the Captain was able to keep a straight face.

"Any further childish antics like this, and I'll suspend your asses from the Avengers faster than you can blink. Understand?"

The two nodded and Fury motioned for them to leave.

Tony and Steve went back to the living area. Both were still angry at one another. Steve because Stark almost killed him and tried prying into his personal life, and Tony because everyone was on Steve's side.

Everyone could sense the tension between Iron Man and Captain America, so they elected to steer clear from both, though Natasha did keep her eye on them for awhile.

Bruce checked Steve's injuries again before Steve returned to his bedroom.

He went straight to his bed and shut his eyes. But a few seconds later he felt something snuggle into his arms. He opened his eyes to see Natasha there.

"Vent?"

"Vent" She replied and wrapped her arms around him.

"Careful. Still tender in some areas"

"I thought I was going to lose you today" she said mournfully.

"I'm sorry, Nat"

"I don't blame you. I blame Stark. I told that asshole no repulsors"

Steve nodded and the two laid in silence for a moment.

"Did Fury or Stark find out about us?" She asked.

"No. But Stark was prying hard."

"If Fury was to find out, he'd take you away from me. Fraternization is forbidden"

"I just wish we could go away somewhere for awhile. Just me and you"

"We could. Give me two days, we could go on a trip"

"Sounds good, sweetheart" he said, and pulled her closer to him as they fell asleep.

In Tony's lab, the billionaire got an earful from his wife.

"Tell me why the hell would you ever consider trying something like that? You could've killed him!"

"I only wanted to know if he was banging Romanoff. Aren't you curious as well?"

"It's not our business, Tony. Leave them alone, or I swear I will walk out on you"

"Alright, alright. I promise I won't pester them anymore. Listen, I gotta finish up in here, I'll meet you upstairs, ok?"

"Don't be too long" she said, and walked away.

Tony watched as Pepper left the room and when he sure she was gone, he began speaking to his AI.

"JARVIS, its time we learned the truth about Capsicle and Natashalie. And I'm not stopping until I'm satisfied"

A/N: As always, Review, critic and advice are greatly appreciated!

- Thank you to my proofreader, CAMILLE JONES and Muldoon22

Next Chapter : Gone the Soldier and the Spy.