A longer chapter with deductions and multiple avengers, hooray!

'So what do you think, is he lying?'

Tony and Bruce stared at Sherlock from across the lab.
Bruce shrugged. 'He seemed to be very convinced of himself. And what does it matter if he is? If he doesn't want to tell us who he is, then that's fine.' Tony laughed. 'No, my friend, I don't think you understand. This is a secret organisation. There is no space for liars here.'
'Well apparently there is, because Fury let him in.' Bruce turned back to the control panel he had been working with. 'And that's all I'm going to say about it.' Tony crossed his arms, and looked an awful lot like a five-year-old that hadn't got what he wanted. 'Fine, be boring. I'll go and talk to him on my own.'
He walked up to Sherlock. 'So, mister Holmes,- if that is your real na-'
'Shut up.' Sherlock turned a few of the wheels on his microscope- which wasn't as nice as the one he had at home, he'd made that very clear- and paid no attention to Tony. This got Tony ever more annoyed. 'Look, I-' 'I said shut up, can't you hear?' Tony sighed. 'I just wanted to ask if you've found out where the bad guys are staying.'
Sherlock finally managed to tear himself away from his work. 'Almost. It would go a lot quicker if you didn't keep bothering me, but apparently that's not going to happen, so I'm adapting.'
'I'm just saying, if you were really Sherlock Holmes, you'd have found out within the first hour.'
Sherlock got up from his chair and got so close to Tony he could feel his breath. Uncomfortably, Tony took a step back.
'Look, I don't know why you think I'm not telling you who I am,' Sherlock snapped. 'But because you clearly don't trust me, I will show you.' His eyes quickly scanned across Tony's body.
'I know that you're a playboy, but recently settling down. You're a rich genius, both of those traits inherited from your father, as well as a ridiculous amount of beach houses all over the world, where you take girls. You're bored a lot, at least we have that in common, but apart from that you're a pompous idiot, spending your money on anything that it can buy.' He took a step closer and tapped on the device that seemed to come out of Tony's chest. 'Those were the boring facts, now, this is interesting. New technology, yes? But why do its cables go into your body? Does it power you like a machine? If so, then it should easily be able to power some great weapons, but for some reason you're not using it for that, even though you have been in the weapons industry for long. So you're using your knowledge for fighting crime, instead of creating more of it. My compliments to mister Banner –who is clearly listening in- for keeping this man on the right path, because at least you seem to have some influence on him.'
Bruce blushed and tried to continue looking busy with his work, but failed miserably. He dropped a test tube on the ground, cursed and could just keep himself from slipping on the glass shards.
Tony laughed. 'You okay there, Bruce?'
Somewhere from behind the desk Bruce's voice bounced back. 'Yeah, I'm fine, just continue annoying each other until I have to break up a fight.'

They ignored the last part and continued to annoy each other.

Bruce sighed. He was not cleaning up their mess when they were done. Anyway, he was starting to root for this Sherlock guy.
He was following the discussion with great interest until the doors to the lab opened. Fury came in first. 'I'm not paying you to fight, you know.'
Tony looked up. 'You're not paying us at all.'
'And by the looks of it that's going to stay this way.' He stepped aside. 'Mister Holmes, I believe you asked for us to bring you a few things.'
Sherlock nodded. 'Hello John, how good of you to come and higher the IQ in this room for us.' This earned him a shove of Tony.
John walked into the room, and looked around in amazement. 'This is brilliant. Sherlock, it's a flying ship!'
Tony's face brightened up. 'Yes! Finally someone who behaves as I expected them to. John Watson. Sure.'
John looked questioningly at the people in the room, got a shrug from Fury, an eye roll from Tony, no reaction at all from Sherlock –but he was kind of used to that by now- and a reassuring smile from Bruce. 'No? Nobody's going to explain that to me?'
Sherlock was about to make a sneering comment when the doors opened again, and the rest of the Avengers came in, so instead he just sighed. 'It's getting rather crowded here. I thought we were catching murderers, but if we're going to be boring again-'
'Don't you make me slap you again, Holmes, because I swear, I will do it.'
Clint smiled. 'Ah yeah, Nat and I heard something about that. Not sure whether to feel sorry for him or generally feel awesome for him. It sounded like you deserved it though, no offence meant.'
'I don't care.'
'Are you sure? Because I'm not about to be the bully to the new guy here.'
John laid his hand on Clint's arm. 'He really doesn't.'
'Oh, that's fine then.'
'Have you found my brother and the mortal yet?'
Tony shrugged. 'He's not actually your brother, you know. And you should really think of a better place to put him, because I'm not about to capture this guy for the rest of the week, I have more to do.'
Thor ignored him. 'But have you?'
'If everyone would finally shut up, we would have,' Sherlock sneered. 'But no, this place is more of a café full of lunatics then it is a secret agency, for gods sake.'
Thor brightened up. 'What god, maybe I know him?'

'Living proof of my point right there.'