A/N: Thank you to angie for the review! Every crossover I've read it's always Blaine Stark so I wanted to mix it up and I think it really fits his personality and it's so much fun to write. In the suitcase was just the shoes that he uses later in this chapter that aren't actually a part of his Iron Man suit but in the next chapter when he puts his own one on it's basically going to be white/silver to be different from his dad's.
AP newbie, I'm so glad you decided to read this, even though it's only T. I can't believe somebody recommended this story to you and it's means so much that you liked it too! thank you so much for the review, it means so much to me :D another shout to DemitriMP for the recommend!

"Hey Tasha," Kurt said, giving the red-head a quick hug as they reached the jets a short while later, somehow ahead of schedule.

"Hey Junior. You okay?" Natasha smiled, hugging him back.

"Yeah. How you holding up?" Kurt asked as he pulled back.

"Okay, I guess." She shrugged, biting her lip slightly.

"If you say so. I gotta dash but good luck with Banner," Kurt said pressing a quick kiss to her cheek.

"How do you know everything?" she asked, shaking her head slightly in disbelief as Kurt dashed towards his jet, his boots giving him a slight spring in his step as he ran.

"It's in my blood," Kurt smirked as he waved through the doorway. Coulson then slid the door shut and their jet took off, leaving a still slightly confused Blaine alone with Natasha.

"You okay kiddo?" she asked as they jumped into their own jet.

"I think I'll manage," Blaine shrugged as Natasha slid the door shut behind them both and gave the pilot a thumbs-up to set off.

"We'll get through this. Us assassins gotta stick together," she smiled, squeezing Blaine's hand as they buckled into seats before the jet roared into life, shooting off the tarmac.

"What are they doing down there?" Kurt asked as he leaned over the scanner. They were within a hundred metres of the other S.H.I.E.L.D jet that should be holding Loki, Captain Steve Rogers and Kurt's father.

"Look's like Thor's made an appearance and has gotten the attention of the rest of them." Sighed Coulson, running a hand over his face.

"Oh you've got to be kidding me," Kurt groaned as he saw the readouts of the heat signatures on the ground of the three fighting figures. "Where's Loki?"

"There," pointed the pilot, indicating a single heat signature off to one side from the fight. Kurt took a quick glance out of the door window behind, nodding to himself.

"Right, let's make sure he doesn't try anything then," he said before flinging the door open and jumping out. Coulson braced himself against the wind and shut it with a sighed breath.

"Does he have a parachute?" asked the pilot worriedly.

"Something like that," Coulson said with a shake of his head and roll of his eyes.

Meanwhile, Kurt plummeted towards the earth, moving into position to carry himself forwards slightly so he was on target. As he neared the ground he turned, somersaulting once through the air to land with a thud and a small shockwave on his feet, knees bent slightly as he hit the dirt a mere two metres from the figure of Loki, his boots absorbing the entire force of the impact without a sweat as they'd been designed to.

Loki jumped at the sound - and vibrations of the ground beneath him - as his attention snapped away from the fight where he'd been watching with a small smile on his face, to face Kurt, his expression now intrigued.

"They're sending children out now are they?" he smirked. Kurt raised an eyebrow in challenge and stepped forwards the Asgardian. Loki attempted to strike out at Kurt but he was there with a block before he'd even crossed half of the distance between their bodies. He tried again but Kurt was quicker and a lot more practiced in hand-to-hand combat and blocked again. Loki's smirk vanished and turned to frustration as, yet again, Kurt blocked his attack. Once, twice, three times he tried again but Kurt was quicker and blocked, catching his fists before they got anywhere close. On his fourth attempt Kurt caught his wrist and spun, pinning his arm behind his back and slipping his thin but strong metal bracelet into cuffs to lock Loki's hands together behind his back.

"Impressive; for a child that is." Loki said with an annoyed smirk on his face as Kurt returned to stand in front of him. Kurt placed his hand heavily on Loki's shoulder and sent him a pitying smile before bringing his knee up hard into Loki's groin.

"Watch who you're calling a child," Kurt smirked as Loki doubled over in a groan. With one last smirking glance at Loki he returned his gaze to the fighting men in the forest before them. With a sigh Kurt lifted his fingers to his mouth and let out a short, sharp but loud whistle.

"In your own time," he called out to them, sarcasm barely hidden. He heard a loud deep laugh from the forest and slowly the three men made their way towards Kurt.

"I like this guy," smirked the tall blonde guy; Thor, Kurt presumed as he was the only one of the three he hadn't met before. Kurt curtsied slightly with a smile on his face that Thor mirrored as he helped pull his fellow Asgardian to his feet by a stern grip on Loki's upper arm.

"Our ride should be on its way," Kurt explained with a quick nod of acknowledgement to the Captain who sent him a smile.

"We had it covered" came the voice of Tony Stark through the small speakers that allowed him to talk with his helmet shut. Kurt raised an eyebrow and gave the metal man a pointed look but said nothing more.

"Nice cuffs kid," smiled Coulson as they stood side by side, watching along with most of the others as Loki was loaded securely into a reinforced glass cage. Coulson handed Kurt back the cuffs he'd placed on the Asgardian as they'd been replaced with much stronger and more permanent ones shortly after their arrival on the flying airbase.

"It's what I did to him for calling me a child," Kurt shrugged as he accepted the cuffs back, snapping them into bracelet form and sliding it back onto his wrist. His gaze never left Loki and therefore he missed Coulson's momentary look of panic before he set his features into a calm mask again.

"Your suit is here by the way. And your friend Blaine has returned too,"

"We're not really friends yet I don't think Phil," Kurt shrugged, leaning forwards on the railing in front of them. "We've only known each other a day."

"More so than you've known Thor," pointed out Coulson leaning forwards too.

"Thor didn't show up cocky and just waiting to get the chance to fight me. I think you'll excuse me for treating them differently. That and Thor is a demi-god or something." Kurt pointed out, giving Coulson a pointed look.

"What happened to dinner? Don't tell me it was a terrible first date," Coulson teased.

"That was my prize for kicking his ass. And may I point out I asked JARVIS to do a background on him first so I could suss him out. Although, don't tell him that." Kurt said, earning a small laugh from the agent.

"I won't." he smirked. "Now that Loki's secure, would you like me to show you to where your suit is? In case of emergencies of course,"

"Sure, why not? I could do with something that's not my school uniform too if that's okay. You wouldn't happen to have any slightly more functional clothing around here would you?" Kurt asked as he began following the smiling agent out of the large observing deck that looked over onto Loki's new prison.

"Hey Kurt," smiled Steve as he pulled Kurt into a hug as they met in the 'suit-up chamber' as it had been nicknamed.

"Hey Gramps," Kurt laughed, hugging back.

"Nice moves back there, Kid. Not to say anything against your father but I'm not sure it was the best decision he's made starting that uh... disagreement with Thor back there," Steve said, causing Kurt to laugh lightly.

"It's fine. Dad's not always one to think things through. We're lucky Loki didn't try and run then and there and stayed to watch his brother fight. I only cuffed him really, blocked his punches a bit," Kurt shrugged nonchalantly as he adjusted the zip on his new jacket.

"Still, it's a good job you turned up either way. Boys will be boys it seems and arguments always start over the little things," he sighed, shaking his head a little at the memory.

"True, I guess. Shall we head down to the labs? See if Doctor Banner's made any progress on finding the Tesseract?" Kurt suggested.

"Why not?" smiled the Captain, "Though you'll have to lead the way. I'm not good with this place yet,"

"Hi Kurt, Captain Rogers," Blaine smiled lightly as the pair of them entered the lab after only one wrong turn.

"Hey kiddo," smiled Tony, glancing up from the screen he was focused on from where he stood beside Banner for a moment and beckoning Kurt over. Kurt smiled and walked through the gaps in the workbenches over to his father and as he neared was pulled into a tight hug.

"Hey," Kurt smiled into his dad's shoulder.

"Hey," Tony smiled back. "Nice work earlier kid. You sure tested those boots out,"

"Yeah," Kurt laughed as he pulled back. "Still comfortable after a couple thousand feet drop. D'you reckon someday you could make innersoles for regular shoes that are that comfy?" he teased as Tony laughed, shaking his head affectionately at his son.

"One day maybe," he smiled. "Kurt, let me introduce you to Doctor Banner," Tony said, holding out an arm and beckoning forwards the doctor.

"It's a pleasure to meet you sir," Kurt smiled, shaking hands with him.

"And you too. Tony might have mentioned you a couple of times already,"

"Did not," Tony complained.

"Four times." Bruce smiled and Kurt threw his head back slightly as he laughed.

"How goes the search for the Tesseract?" he asked.

"Slow, unfortunately. Organising the technology is difficult," Tony sighed as he tapped away at a screen.

"We're trying to sync up all the spectrometers we can find to search for the gamma radiation the Tesseract gives off. It's a very specific reading so hopefully we should find it but it's hard to calibrate so many machines on such a scale." Explained Banner.

"I wish there was something I could do," Kurt sighed, biting the inside of his bottom lip.

"We're all wishing that young one," the gravelly voice of Thor rang through the room.

"Call me 'young one' one more time," Kurt said, bitch glare directed at the man in a corner that Kurt hadn't noticed until he'd spoken. A gentle hand found it's way to Kurt's shoulder and he looked up to find its owner to be the captain.

"Kurt," he said gently. It wasn't condescending but to Kurt it felt as though it might as well have been. He settled for a sigh and shrugged away from the hand.

"Yeah I know Gramps," he sighed, before making his way from the room.

"Hey," the quiet greeting of Blaine's voice startled Kurt out of his thoughts. He'd sat on the observation deck, out of hearing range of Loki but still with him in view, watching him pace up and down the cage they had him in. Having slid down the wall to sit at the base of it, it felt odd to Kurt to be looking up at Blaine who was nearly four inches shorter than him.

"Hey," he sighed back, tipping his head back against the wall.

"Never got a chance to compliment your boots," Blaine laughed lightly to himself as he slid to a seat beside Kurt.

"Long-Fall Boots," Kurt shrugged. "Dad designed them. Initially they were for when I was little so I'd never fall on my head. They're self-righting or something about gyroscopes, meaning I'll always land on my feet. Perfect for an exuberant toddler."

"Your dad sounds so different to the one the media sees." Blaine commented.

"Yeah. He's kinda self-obsessed from the media's point of view. And sure, he can be. But he has a heart. That's his biggest pro and con at the same time. It's heart over his head with him, instinct over thought out plans. But he has good intentions." Kurt defended, his eyes slipping closed.

"You worry about him,"

"All the time," Kurt sighed airily. "You're worried about Clint."

"Yeah," Blaine sighed. "I just... I wanna do something. I feel useless right now, like we're all just waiting around. I don't even know what we're waiting for,"

"Me either. We'll probably know though." Kurt sighed. "We'll feel it."

"Yeah, I guess so," Blaine conceded. "You know... you still confuse me."

"My bad," Kurt laughed, eyes crinkling slightly as he smiled though his eyes remained shut.

"You said, back in the car to the jets, you said something about me being permanently stuck gawping if you told me about your grandfather. Wh-who is he?"

"You really wanna know?" Kurt asked, cracking an eye open to peek at Blaine's expression.

"I think so. I mean, I don't want to intrude if it's really personal or something, but I can't deny I'm curious," Blaine admitted with a small shrug.

"You know how I told you my parentage is complicated?"

"Yeah, I don't doubt you there for a moment," Blaine smiled with a light laugh.

"Well," Kurt said, sitting up a little straighter. "You've kinda gotta go all the way back with my family. My grandfather is uh, my granddad's actually Steve Rogers."

"Should I get used to all these surprises?" Blaine asked, a little incredulous.

"I dunno. Only if you plan on sticking around I guess," Kurt said with a small shy smile.

"Trying to get rid of me already?" Blaine smirked, an eyebrow raised flirtatiously.

"Clearly," Kurt rolled his eyes.

"Can I... can I ask how you're related to him then?" Blaine asked, suddenly apprehensive again and shy.

"Of course." Kurt comforted. "He and my Grandma Peggy worked together on the project that turned him from Steve Rogers into Captain America. They were head over heels for each other but then he had to crash his plane to stop these nuclear weapons and stuff. You know the story right?"

"Yeah. He got frozen in the ice right?" Blaine confirmed.

"Yeah. Of course, Peggy didn't realise she was pregnant with my mom until some time after he was gone and she thought he was dead. So she raised my mom on her own like many other moms who'd lost their husbands in the war. It sucked but they were a strong pair, they kept each other sane, you know?" Kurt sighed, revisiting memories of his grandma.

"She died four years ago. She never got the chance to find out he was still alive. My mom grew up and fell in love with my dad, Tony. Their relationship was tough though; they lived so far apart and neither could really up sticks and move to be with the other so they sorta managed long distance. They had me and even though they still loved each other, dad knew he wouldn't be able to be in my life that much. He loves me, I know he really does, but if people knew I was his son they'd start trying to look for ways to get rid of me or whatever and dad didn't want that. He knows how important my safety is and they both decided that, though he'd try and visit as often as he could to see me, I'd basically have to hide from the media and protect my identity. I didn't know any of this at the time; I was still really young. My first solid memories of him are him and my step-dad meeting for the first time. It was hilarious to watch their faces. But god my life is so confusing sometimes," Kurt finished, sinking his head into his hands.

"That's... complicated yeah." Blaine said softly, placing a gentle hand on Kurt's back.

"That's why dad calls him Gramps. That and his dad worked on the Captain America project and his dad used to tell him stories of the fearless and brave Steve Rogers. My life is such a mad mess sometimes just being 'Kurt Hummel' is enough complications. Just having a step-dad is as complicated as people think it gets and I wish I could have that normality. But deep down I know I don't want it. It's stupid but, I like being special this way. I like having mad connections everywhere and having all these amazing people in my life. It makes me different and that's something I don't actually mind being. I just wish it was a little simpler,"

"It's great to be different," Blaine encouraged.

"I know, I just. Life's complicated. Life's definitely thrown me my fair share of curveballs," Kurt laughed to himself.

"You're lucky you know, having all those connections and people that care about you. My dad doesn't approve of me following after my uncle's footsteps. He'd rather I was a lawyer. My brother never listened to him either; he's an actor." Blaine admitted, tipping his head back against the wall. "He was never very accepting," he sighed.

"Does he not..."

"He doesn't approve of my being gay either, no." Blaine answered the question Kurt couldn't finish. Kurt couldn't find anything to say so placed a hand on Blaine's arm gently. Blaine smiled slightly at the gesture.

"I take it your family's more accepting."

"Yeah," Kurt sighed. "My step-dad was a little off for a while, just, he hadn't really seen it coming which surprised me. I thought he might've guessed. But he's okay with it really. It was just the surprise that took him. Mom was totally fine with it and started teasing me, asking if the reason I was coming out was because there was a boy I was hoping to date soon." Kurt shook his head affectionately at his memories. "Dad was possibly the most embarrassing he could've been. Started suggesting we hit up gay bars and all sorts of seriously embarrassing things,"

"He didn't?" Blaine laughed, eyes crinkling as he did so.

"Oh he did," Kurt reassured. "And boy, thank god for Pepper telling him to shut up. She's a saviour. But dear god I was so mortified!"

"Wow, okay I'm glad I didn't get that reaction then," Blaine laughed.

"I'm still trying to forget it ever happened," Kurt said incredulously, shaking his head lightly.

"Well, how bout you show me round this place and I'll never mention it again? I don't know where anything is yet so I could do with a guide"

"Yeah, sure," Kurt sighed, glad for the change of topic and watching Blaine get to his feet and hold out a hand. Kurt took it, pulling himself upright. "Where to first?"

"Um..." Blaine pondered for a moment before a huge shockwave shook through the ship, a rumble of a distant explosion audible as the two boys stumbled on their feet for a moment. "Suit room. Definitely the suit room." Blaine decided as Kurt nodded his ascent, already pulling Blaine by the arm towards it.

"We definitely felt it," Kurt laughed as they ran.

A/N: yeah, I'm basically sticking to the main plot of the Avengers film from here on in but with changes to keep each character involved and such. Also, Long-Fall Boots are a thing from the game Portal which is awesome and just google long fall boots to see what I mean by Kurt's boots (yeah, I can't link on here, I don't know how to do it :P)