A/N: Spider-man, spider-man, can't keep secrets from anyone, spider-man, spider-man, lots of fluffers in this one! (I made a new theme song)
"Peter?"
"Yeah?"
"When we're finished can we play outside?"
"On the obstacle course?"
"Yeah."
He nodded. "Sure, why not?"
"Can I bring my robots for training them?"
"Yup." Peter loved remote-controlled robots as much as the next person. "Did you finish your diagram?"
"Yup." Allie showed him the diagram of the complex cell structure. "I gave them happy faces," she informed him.
Peter smiled as he looked over the diagram. "Looks great." His phone rang just as he reached for the curriculum hologram. "Allie can you get that while I look up mitochondria?"
Allie went to get his phone from the outside pocket of his backpack and accidentally dropped the pack, spilling some clothes from inside. A grey pair of sweatpants, a red and blue hoodie, a mask... she picked up the sweatshirt and gasped when she saw the logo on front. "Peter!" she said, bouncing up and down excitedly. "You're-!"
He ran over and clapped a hand over her mouth before she could finish her thought. "Shh, shh, no I'm not!" he whispered frantically. "These are my gym clothes!"
She pulled out a little vial of webbing. "You're Spider-man!" she whisper-screeched back. "That's where you go when you haves to cancel!"
He clutched at his hair and scrubbed his face with his hands and wiped his palms on his legs. He was legit freaking out. "Okay, okay, yes, but, you can't tell anyone, okay?" he coaxed. "Don't tell anyone."
"Why not? You're a superhero-mgh." She frowned as his hand came over her mouth again, muffling her excited words. She licked his hand.
"Ew!" He let go of her and scowled.
She scowled back, little fists propped on her hips.
Sam was just walking in. "Ew what?" he asked, eyeing the two of them. "Tony try and make an omelet again?"
"She licked me!" Peter complained, pointing at Allie. "As a human!"
Sam choked back a snicker. "Allie, come on girl, don't do that. That's nasty."
She pouted. "Fine." She waited till he left the room before rounding on Peter. "Why not!" she demanded.
"Because!" Peter replied, panicking.
"That's not a reason!"
"Yes it is!" He lowered his voice and knelt in front of her, holding her shoulders lightly. "Listen to me, Allie. I like being Spiderman, okay? I need this."
"But it's dangerous without backup," she replied, frowning at him. "Even Steve and Hulk need backups. What if you get hurt?"
"I won't get hurt."
She scowled at him. "Promise?"
"I promise."
"If you get hurt are you gonna tell the Avengers then?"
"Yes," he said solemnly.
"Good." She hugged him tightly. "Don't be stupid, okay, Pete?"
"I won't."
Sam walked in again for something else, and raised an eyebrow at the two of them hugging. "Everything okay?" he asked, eyeing the identical solemn faces.
"Yeah," Allie said, and turned into an alligator.
Peter stood up and grabbed his backpack. "Well, I have to go. I've got a thing tomorrow. I'll see you Thursday, okay?"
The alligator nodded firmly and lashed its tail.
Peter nodded at Sam, and grinned at Allie. "See you later, Allie-gator." He walked off jauntily, trying to cover his nervousness.
Sam looked at the alligator on the floor scuttling towards him. "I love you, baby, but that's freaky."
The alligator snapped its teeth playfully.
Vision was passed by Sam running at high speed as a small alligator chased at his heels. "I don't think I want to know," he said, and continued on his way.
A~A~A~A
Allie texted Peter that night with her tablet. "All safe?" she asked, and added a raised-eyebrow emoji.
The reply came ten minutes later. "All good." And a thumbs-up along with it. "I won't be coming Thursday, I need to follow the burglars to their hideout. Sorry, Allie."
Allie frowned and texted him back, "Be safe. Get lots n lots of sleep so you'll be good tomorrow."
"I will," came the prompt reply. "Night night."
The next morning, Allie informed her parents that Peter had something to do and she would be spending the day in the lab with Tony doing Science!things. Tony didn't even notice her until he turned around and found Allie laying on her stomach on the floor, building holographic molecules.
"Hi, munchkin. Where's Peter?" Tony asked.
"Not here," Allie said placidly. "He had a thing."
"A thing?"
"Uh-huh." Allie continued compiling the molecules. "He thinks he knows where those one burglars are and he's going to go get them. He'll be back tomorrow."
Tony stared at her. "What."
She looked up at him blankly. "What?"
"What?" he said again. "Did you just say he was going after burglars?"
Allie's eyes grew huge. "No?"
Tony closed his program and made her face him. "Seriously Allie, what's going on?"
She bit her lip and looked at the ground. "I promised."
"What did you promise?"
"Not to tell that Peter's Spider-man," she whispered.
"What!" he said loudly, shocked.
Allie burst into tears, miserable that she hadn't kept her promise to Peter after only just one day.
Tony panicked and scooped her into his arms. "No, no, baby don't cry, I'm not mad at you."
"Don't be mad at Peter," she implored tearfully.
He kissed her forehead. "I'm not mad at Peter either, I promise."
Steve knocked on the open door to the lab and stuck his head in. "Everything okay?" he asked, his tone light but his eyes concerned.
"Guess what Steve?"
"What, Tony?"
"You know Peter Parker, our friendly neighborhood tutor?"
"Yeah..." Steve frowned. "What did he do? Why's Allie crying?"
"Peter Parker is also our friendly neighborhood Spider-man."
Steve's jaw dropped. "What?"
"That's what I said." Tony handed Allie to Steve. "Hold this emotion, I'm going to do some recon."
Steve smoothed Allie's hair away from her face. "Did you know about this?" he asked gently.
She nodded and sniffled. "I saw the suit in his backpack and figured it out and he asked me not to tell because he had it handled and I promised I wouldn't but I did and now he's gonna be maaaad..." She subsided with a miserable sob into his shoulder.
Steve rubbed her back. "He shouldn't have made you promise to keep it a secret. That kind of secret, where someone could get hurt, is not good."
"You're not mad at him?" she asked.
"No. Just disappointed that he didn't tell us earlier." Steve kissed her forehead. "How about we go find the others, huh?"
"Yeah."
They found Clint first. Allie needed a hug from her daddy, and went into his arms gratefully. Clint just hugged her tight without question. "C'mon," Steve said. "Team meeting."
They assembled, and Tony presented what he and FRIDAY had found so far. "Wait," Wanda said, half-raising a hand. "I thought we knew already."
Everyone turned to stare at her. "You what?" Tony asked in disbelief.
"I thought we knew," Wanda repeated. "That's why he was chosen to tutor Allie, because he is both mutant and intelligent."
"And you never thought to mention this?" Rhodey asked.
"No. I did not see a need. I assumed he was having regular briefings with Tony or Steve."
Steve sighed. "Okay. So we're all spectacularly blind. Now what?"
"Now we check that he really is Spider-man," Tony said, grinning.
Bruce frowned. "That's your evil pranking grin."
"Yes it is, Brucey. Yes it is."
A~A~A~A
Peter sped into the training room at the Avengers compound. "What's going on?!" he asked, breathless, as he faced Steve and Tony. "What's the emergency?"
"Catch," Steve said simply, and from the opposite direction a huge barbell flew towards Peter.
He reacted instantly and caught it, neatly heaving it onto the training mats and whirling to face the others. "What was that!?" he demanded.
Tony looked smug. "That was 500 pounds, Pete. Or should we say, Spider-man?"
Peter's eyes widened and he froze. "Oh," he said weakly. "That. Yeah, ahem, funny story, I've been lifting weights and-"
Something flickered in the corner of his eye and he dodged backwards just as an arrow flew past his nose.
"Superhuman reflexes," Tony said loudly, holding up a finger. "Superhuman strength. Genius-level intellect. If we tossed you at a wall would you stick?"
Peter backed away from Steve cautiously, but answered the question. "Yes."
"And the webs?" Tony asked.
"I engineered them," Peter replied, stuffing his hands in his pockets and slouching inwards protectively.
Steve nodded slowly. "So. You're Spider-man."
"Yeah. I'm Spider-man." Peter sighed. "Did Allie tell you?"
"On accident." Steve gave him the 'disappointed' look. "It was not a nice thing to ask her to keep your secret. She was crying."
Peter's expression turned miserable. "Aw, no, I didn't mean to make her cry. I'm so sorry."
Tony added his own disappointed face. "So why didn't you tell us?" he asked.
Peter huffed. "Because I don't want you to tell me to quit being Spider-man."
"Peter, you're fifteen," Steve said kindly. "The least we can do is help you."
"I can do it," Peter started, "I just need-" He stopped. "Wait. You're going to help me?"
They grinned at him.
Allie was pleased when a month later Spider-man got a new suit and a tiny spider-bot backup. She turned into a tarantula to play with the little bot, and scared the pants off Rhodey on accident.
A~A~A~A
Clint woke up with a weight on his chest. He was surprised, because Natasha wasn't a very cuddly person in her sleep - except it wasn't Nat. It was a small hawk, the size of a blue jay, but perfectly formed with beautiful red and brown plumage, and a little stripe of black across her head.
He smiled and reached up to scratch her neck feathers lightly. "Hey Allie, good morning."
The little hawk blinked awake and crept forward to nuzzle into his neck sleepily.
They lay there for a while, just cuddling, and then Allie turned into her normal self but with reddish purple hair. "How'd you like my hawk?" she asked, curling into his side. "Was it good?"
"It was perfect. I thought you couldn't do full size creatures?"
"Nope. But me'n'Viz figured I could do little full-grown versions. So I did a hawk, because I said I would."
Clint hugged her tightly. "I think you're the best hawk I've ever seen.'
"Cool." She turned into a hawk again and perched on the pillow while Clint got ready for the day.
"Ready punkin?" he asked, holding out an arm.
She ignored his arm and launched into the air above his head, spreading her wings and gliding easily past him.
"How are you doing that?" Clint asked.
FRIDAY answered. "I created an air corridor for her below the air vents so she may glide safely."
"Cool. Good thing we got tall ceilings."
"It was not a coincidence," FRIDAY informed him loftily.
They headed to the common room and Allie made a slightly wobbly landing on the sofa next to her mom. She squawked.
"Hey sweetheart," Natasha said, transferring her cup of tea to her other hand to smooth Allie's feathers.
Vision grinned smugly all day as Allie tested her mini hawk form swooping down on unsuspecting victims and taking items out of their hands. She stole Cap's clean gym towel, Tony's tablet, Bruce's glasses right off his nose, and Thor's Pop-Tart. She almost got Loki's watermelon but he saw her coming. She also managed to steal the TV remote from Clint's hands and changed the channel with her beak.
"No, not History Channel," Clint begged, swiping for it.
She clicked it to Adventure Time.
Clint groaned. "No, never mind. Ancient Egyptian tombs are fine."
Allie looked very smug for a hawk, and settled happily into a pillow.
The nerds of the compound: Steve, Wanda, and Loki, were attracted by the sound of documentary narrative, and joined them in the living room.
Allie scooted over obligingly for Steve, and turned into a panda bear to cuddle with her dad.
"Aww," he said, turning into a gooey-eyed puddle and scooping her up. "Oh my goodness this is your cutest form ever, baby," he cooed, kissing her nose. "Steve look." He held her up in the air, Simba-style.
"Awwww."
Everyone in the room was the definition of heart-eyes as they gazed at Allie, a perfect little 18-inch fully formed panda bear.
Wanda deftly used her powers to pull Allie towards her and give her a hug.
Allie put her paws around Wanda's shoulders and hummed happily.
A click of a camera captured the moment. "That one's going on the wall," Clint announced.
"I want a hug," Steve complained.
Allie lumbered over and snuggled into his side for the rest of the documentary.
Until Bucky came back from his jog, saw the documentary, shoved Steve over to sit down, and settled Allie in his lap. "You're so fluffy I love you," he told the panda bear seriously.
She tapped his nose with a paw. Love you too, Bucky.
Steve suddenly grinned. "Oh look. Bucky, with a bear! Clint! Picture!"
A~A~A~A
School started a week later, and Allie became a full-time commuter from upstate to the Tower, and sometimes she and her parents stayed overnight.
Peter split his time between school and training with the Avengers, only occasionally showing up to play with Allie. But she was immensely proud of him, and spent her time playing and learning with kids closer to her age.
A/N 2: We're coming up on big stuff... lots of things to foreshadow and prep and interweave... please be patient while I try not to shoot myself in the foot, and try not to copy what I already did in Shakespeare has a quote for everything. Thanks for reading, y'all!