Chapter Text
Natasha only wished for one thing: Something to love.
One way of achieving this wish was to give birth. But seeing as she could not conceive, that was out of the question. The second option was to adopt, but she knew that people willingly prefer to accept adopting a child for couples, not a single person. So eventually, she came down to one option: Create a baby of her own.
It helped that her closet fetish- infantilism- could make this a lot easier, too. She thought about her options... the selection would most likely be male, and she'd have to know him personally. That narrowed it down to the members of S.H.I.E.L.D.: Tony Stark, Steve Rogers, Clint Barton, Thor Odinson and Bruce Banner. They all sounded like easy bait... Well, except Clint. He wouldn't talk to her recently. It'd be pretty hard to convince him to let her baby him.
That's when she came up with another way of making this easy. She needed some sort of formula that won't just make them give in to her- but make them enjoy it as well. As if to.. mentally regress them for a while, just so she could see if they'd be the perfect baby for her. She'd ask Bruce or Tony to help her out, but they'd get suspicious and could uncover her dark fantasy. So that was out. Who else did she know with the ability to create potions or was an overall genius like her two fellow members...
Oh no. Any one but him. Please anyone but him.
But Natasha didn't see any other options. She had to talk to Loki. He was literally the only other person she knew that could conduct some sort of potion for her. He did know some magic, after all, so it wouldn't be too hard for him. Natasha sighed and came down to a decision.
In the morning, she will visit the prison cell they kept Loki in and ask her worst enemy for help.
~~~
Morning came, and Natasha was up before every one else. She made her way to the cell that held Loki, the god of Mischief. You'd think that one defeat would keep him away from New York, but unfortunately that'd be the wrong thought. He wasn't entirely bright.
Once Natasha found the prison cell and found Loki laid against one of the walls, reading his potion book for the millionth time. Not that he had anything else to do. He smiled his usual devious smile.
"Hello, Natasha," Loki greeted.
"Listen, don't try any stupid tricks," Natasha replied, staring Loki down. "I need your help to make a mental regression formula for me."
"You must be truly desperate to ask for my help," Loki said, "I never thought I'd see the day when a little quim like you would ask the god of Mischief-"
"Cut the crap," Natasha said, cutting into Loki's sentence. "So will you help me or not?"
"What's in it for me?" Loki asked. "If I'm doing a pathetic mortal like you a favor, I expect something in return."
"Um..." Natasha had to think for a minute. "When... When I use the formula on Thor, you can come by and see."
"You make a grand offer," Loki nodded, smiling, "I like the way you think, girl. It is a deal, then." He started looking through his thick book for a potion to make. And he looked quickly, too. Being the mischievous one he is, he really wanted to see his oaf of an older brother drooling and wetting himself! "Found it," He said once he found the page. "Now, are you sure you're not looking for a rejuvenating potion and not a mental regression potion? You do know what that means, right? Drooling adults with messy diapers?"
"I know," Natasha nodded, "That's actually what I want."
"Is this an act of revenge?" Loki asked.
"Sort of..." Natasha replied, "More like a 'I just wanna see what happens' sort of thing."
"I see," Loki said, "I will have your potion ready momentarily." He grabbed the book again and studied the recipe, murmuring softly the incantation required to bring this recipe to life. After a few minutes, the potion was ready. He'd used another incantation to create a bottle to store said potion in.
"Is it ready?" Natasha asked, seeing Loki hold the bottle in his hands.
"Yes," Loki replied, "You'll need to come into my cell to retrieve it." As Natasha went into Loki's cell, she mentally said to herself, He better not pull anything or his ass is grass. She went over to Loki and took the bottle from his hands. "The effects wear out after twenty-four hours, depending on the amount given," Loki said.
Before leaving, Natasha pinned Loki down and forced a few drops of the potion into his mouth. "This is for last time," She said, pushing Loki to the side after closing the potion bottle. Nothing happened at first, just Loki getting angry and taunting her with his usual "I'll kill you" "I'm a god" "I will have my vengeance" nonsense.
But eventually, Loki wobbled and fought to stay still, his threats becoming uncomprehednable words. Then Loki looked like he'd recently been shown the world, knew nothing about it and was terrified of it. He fell over and started crying like a newborn baby, balling his hands up fearfully and hiccuping between cries. With a mix of surprise and delight, Natasha bent down next to Loki and sat him upright.
"Oh my, that potion really did a number on you, sweetie!" Natasha said, patting Loki's back gently. Loki continued to cry, not understanding what Natasha was saying. "It's okay baby, mommy's gotcha," She smiled, kissing Loki's forehead.
That seemed to be all Loki needed. He looked up at Natasha curiously, smiling and cooing happily, snuggling against her chest. Natasha smiled, reaching into her pocket and grabbing a pacifier from it. Loki saw it and whined, reaching his arm out for it. Natasha giggled and stuck it in Loki's mouth, smiling when he started suckling gently on it.
"Awre yew mwy mummy?" Loki asked behind his pacifier, gently gripping Natasha's shirt.
"I am," Natasha nodded, rubbing Loki's back gently. "I'm your mommy, sweetie." Loki smiled and giggled, yawning after a while and curling up in Natasha's lap. "Awww, is it naptime, baby?" Natasha asked. Loki only cooed softly and got comfortable, suckling his pacifier and closing his eyes, having fallen asleep in a matter of seconds.
Natasha smiled and rubbed Loki's back, happy to have her first test subject a success. One boy down, five more to go.