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Characters might be OOC and there'll be some grammar error but I'm trying my best.

Disclaimer: I don't own Naruto and everything that'll appear in this story.

Natalia Romanoff/Black Widow (Marvel)

"W-W-What did you just said?!" Natalia stared at her doctor in pure shock, it was supposed to be a regular check-up but what the doctor had told her is something impossible.

"I said congratulations is in order, you're pregnant." The doctor checked the chart before he look up to her, "Unless…?"

"O-Oh, t-that's…Um…" The redhead stammered bewilderedly, "G-Good, j-j-just surprised…" She picked her stuff up then walk out with wide eyes and the doctor blink rapidly.

"Ah, wait, we haven't finish the check up!" He hollered out before he scratch his head puzzlingly, "Guess she's that shocked, huh?"

'That's impossible, that's impossible!' Natalia paced around in her apartment hastily, it have been few days after the news and she took several tests to confirm it. She really don't understand how she can be pregnant when she have visited the 'Red Room' in her early life and the redhead tried to remember the last time she have…"…Was my one-night stand a mutant or inhuman?" The former KGB spy muttered unsurely, she had few more drink this night and decide to release some of her pent-up urge with a stranger. "…What am I going to do?" She placed hand on her forehead with a mutter, she want to tell someone about that but everyone she knows have loose lips, even her close allies. "…Shit!"

The avengers were having one of their meeting at the Avengers tower and Spider-man stick to the wall, waiting for the meeting to start as some heroes were chatting about random things in their life until the web-slinger see Natalia walk in. "Hey, BW, it have been months since I saw you. How's thing…" The first thing he notice about her is a large bump in her stomach, "…I'm sorry, but are you pregnant?"

"Yes, seven months in." Natalia walked by the stunned spider-themed hero and the avengers take a glance at her as she take a seat before they quickly pull double-takes.

"N-N-Natalia, w-w-wha…" Tony Stark pointed at her stomach with stutters, "W-What…Wha…Are…Are…"

"Yes, Tony, I'm pregnant." The redhead replied nonchalantly, "Can we please start the meeting so I can go back home?"

"…H-How far are you?" Janet asked her curiously and in shock.

"Seven." Natalia answered before they hear few thuds and she look up to see few fainted heroes. "…Why are they acting like I just told them they're the father?" She scoffed, earning several weird looks from the avengers. "What?"

"Uuuum, nothing…" Steve Rogers coughed awkwardly, "Congrats?"

"Thank you." The redhead replied.

Some time have passed and Natalia was sitting in control room with some avengers as they discuss something about how to deal with a diplomatic issue before the redhead suddenly stand up then walk toward the elevator calmly. "Natalia, where are you going?" Tony asked her with raised eyebrow.

"I'm going to have a baby." The redhead said with deep breaths as her face winced few times, "My water just broke." The doors closed on her and the avengers stare at the closed elevator for few minutes.

"…WHAT?!" The billionaire screamed out together with his fellow avengers before they rush down the stairs or flew to the ground to meet her on the first floor.

Natalia smile down to her newborn son, who she decides to name Naruto. The baby was moving his arms around with some sleepy cooing, revealing his blue eyes and a bit of blond hair, and he have whisker-like birthmarks on his cheeks. She lightly rub her son's cheek with her index finger then giggle as Naruto grabbed it with his hand with a squeak and he place its tip into his mouth, sucking it. "You have a good grip, Naruto." She smiled as the baby kept sucking her finger with sleepy eyes until he fall asleep and she carefully remove her finger from his mouth. Natalia stare at the face of her sleeping son and she wonder how her life will turn out as a single mother.

"Taskmaster and Dark Avengers are now imprisoned in Raft." Tony read the report out loud to Avengers as they have a meeting in the Avengers Tower and the endless noise of squeak can be heard but everyone was ignoring it.

"Good, then we…" Adam Brashear was about to say something until something bump into his chair without any warning and he look down to a toddler boy, wearing orange onesie, in bouncy walker with many trinkets as the baby wave his rattler around. This baby is none other than Naruto Romanoff and he kept bumping Adam's chair over and over with his walker. Blue Marvel get up to move his chair out of the way so Naruto can go through with few bounces and he move back in his seat.

"Remind me why Naruto is here?" Janet asked, pulling her chair in to avoid a collide with Naruto's walker as he rolled past her with a cooing.

"No nanny." Natalia replied.

"I thought you have one?" Steve raised his eyebrow at her.

"Let's say she got in an accident and leave it at that." The redhead replied again.

"Ah, back to nanny interviews, huh?" The billionaire hummed before the baby's walker bump the side of his chair few times and he was about to get up…Only cry out in pain as he bend over, hitting his forehead on table.

"What happened?" Bruce Banner asked and Tony groan out in pain.

"Let me guess, he hit you with the rattler?" Natalia smirked lightly.

"Y-Y-Yes, he did…" Tony roll his head to one side to look down at the squealing baby as he smashing his rattler on the adult's leg repeating, "That hurt, you know?" Naruto threw the rattler directly at his eye, "OOF!" Before he know it, few more objects hit his face.

"Oh, and he's in phase where he would throw anything he get his hands on at people." The redhead snickered.

"Where in the world did…Ow…He pick up from?!" The billionaire cried out as he blocked his face with hands, "And can anyone help me out here?!"

"You're on your own." Spider-man chuckled, "The last time I tried to help, Naruto won't stop crying for hours and Natalia threat to cut something important off me if I do it again."

"Damn straight I will." Natalia said.

"Spoiling too much?" Tony grunted out annoyingly, trying to block most throwing objects. The spy really loves to spoil her son so much with everything from toys to clothes and always let him get away with almost everything.

"Mommy, can I ask you something?" Natalia turn to look down to her six year old son, who wear a oversized orange t-shirt and black pant, as she lie on sofa with book in her hands.

"Yes, what is it?" The superspy sits up.

"Am I a mutant, inhuman or what?" Naruto squirmed his eyes in curiosity, "I can make many me, do cool stuff with wind, fire, water, dirt and other things."

"Well, you're not a mutant and inhuman because your uncles ran some test on you when you create clones for the first time, remember?" Natalia hummed as her son nodded, she remember it clearly. It happen during one of Avengers meeting when Naruto ran into the room all excitingly and suddenly show off his ability to create many clones and breath fire and jet water, which almost everyone a heart attack on spot. The redhead believe that her son's powers come from his father but she don't know if the father was either alien or supernatural creature. Either way, it don't change anything because she love her son. "You're very special boy."

"Like uncle Spidey?" The blonde grinned.

"Yes, very much like uncle Spidey." The chuckling redhead picked her son up, placing him on her laps to snuggle him. "I love you, lapochka."

"I love you too, mommy." Naruto hugged back with a grin.

Natalia bit her lower lip to stifle her giggles as most of her teammates stare at her exhaustingly, "How was…" She resist a powerful giggle, "Your weeks with Naruto?" She had a three-week mission but she can't leave her precious ten year old son alone with some strangers and the avengers were kind enough to offer babysitting Naruto at the Avengers Tower, which she take up on them.

"He filled every shampoo bottle with dye…" Tony pointed at his pink hair and goatee, "Pink dye! And I get one with unremoved dye!"

"He somehow swap all my costumes with Deadpool's!" Peter gestured to his costume, "How he manage to find all my outfits, I never know! People actually ran away from me wherever I swing to, even the villains!"

"He replace all foods we have with noodle cups." Steve said flatly, "And shoves all vegetables we have down the sink."

"He do like his ramen." Natalia snickered.

"You don't tell us that he can walk on ceiling." Janet pointed up to the ceiling, "We spend hours looking for him until he drop all balloons on us…Paint balloons!"

"He triggered Bruce every single time." Vision gestured to several large holes in a wall at their right side, "Just because he like Hulk better than a wimpy crybaby, his words."

"And he install a goddamn song in the sound system and it won't stop broadcasting!" Clint turn the system on to play a loudest dubstep song then turn it off, "We have to reboot it but…He kept doing it over and over!"

"He turn the whole meeting room upside down." Wanda sighed wearily, "Then flood every toilets with cherry bombs and fake poops."

"And…" Scott was about to say something but the door swing open and everyone turn around to see Naruto carrying many rubber yet realistic snakes in his arms with a little blonde girl, Cassandra, in tow, carrying bunch of stinky bombs. "He turns my daughter into a prankster!" He pointed at the kids, "My little sweet girl!"

"Mommy!" Naruto's eyes lit up at the sight of his mother as he run toward her while tossing the snakes at the avengers, ignoring some yelps and he jump into his mother's arms to hug her tighter.

"Did you miss me, lapochka?" Natalia hugged her son back as she pecked her forehead affectionately.

"Yeah!" The boy grinned.

"Have you been a good boy while I was gone?" She asked.

"Yes!" He giggled.

"No!" Most avengers shouted but the mother and son don't pay them any attentions.

"Since you're a good boy, I'll make some ramen in few minutes." Natalia smiled.

"Yay!" Naruto hopped up and down exictingly, "Oh, oh, can Cassie eat with me?"

"Sure, she can." The smiling redhead nodded and her son cheered before he grab Cassie's hand then run out to the dining area. "Thanks, guys, for watching after Naruto." She stand up with a wave then exit the room and Tony open his mouth to say something but he suddenly get plummeted by dozen of balloons as everyone move swiftly away from him. The billionaire end up covering in whipping creams and he slowly wipe some off his face.

"…Never again." Tony uttered, "Never am I going to watch after Naruto again."

The front door swing open as Natalia step inside the apartment then close it behind her and she call out. "Naruto, lapochka, I'm home." She said, "Are you ready to go? We need…" There was a loud thud from Naruto's bedroom down the hallway, following by curses and the superspy immediately become worried. "Naruto?" Natalia walked faster toward her son's bedroom and Naruto scramble out with some stumble as his bedroom's door slammed behind him.

"Hey, mom." Naruto quickly put jacket on, "I just tripped over from bumping into my desk." He quickly turn his mother around then pushing her to the front door, "Come on, we better not keep them waiting!"

"You're awfully exciting for a birthday party." The redhead raised her eyebrow at her son before she brush it off as she locked the apartment and walk down the stairs to first floor, "Do you want to drive or do I?"

"You'll drive." He replied, getting in car with his mother and she pull into the lane then starting drive.

The mother and son reach the Avengers Tower after few stops and they were immediately greeted by many avengers and Naruto's friends. Most wish Naruto a happy birthday until a sound fill the whole room.

SNIKT

"Why is Laura's scent all over you?" Logan glared at Naruto as some turn to look at him questioningly, "Along with other female scents?" Now that turn more heads.

"Um, because we hugged early." Naruto gulped at the sight of the claws.

"…I don't believe you."

SNIKT

The Canadian mutant looms over the sweating blonde with his claws out, "I'm gonna…"

"Father, please do not threat my boyfriend." Laura Kinney moved in between Logan and Naruto with expressionless face.

"Naruto, since when you have a girlfriend?" Natalia looked at her son in shock and surprise.

"Um…" The blonde uttered.

"But I smell the others on hi…" Logan growled.

"I know." The daughter of Wolverine replied, "I share him with Cassie, Kamala, Nico, Viv, Nadia, Singularity, Crystal, Anya, Hollow, Nahrees, Noriko, Hope Summer." Almost everyone stared at X-23 and Naruto with rapid blinks, "Felicia Hardy and Susan Storm." Almost everyone turned their heads to the said blushing blond woman, a divorcee of two years.

"L-L-Laura!" Almost every said person cried out in their own ways with different degrees of blush.

"…What?" Logan uttered stunningly.

"We're in open relationship." Laura said, "We even have a date schedule, each one get a day with him and there are few days where everyone get together." Naruto do not want to look back to his mother, dreading to see what face she's making from this revelation. "The reason why you smell many scents on him is because we were taking turns fucking him for the first time as his birthday present, however it was cut short when his mother come home earlier than expected." Okay, Naruto really don't want to look back as some bystanders either spit-take or drop their plates and glasses out of shock.

"LAURA!" The girlfriends of Naruto cried out again.

"Naruto…" The said blonde feels his mother's hand on his shoulder.

"M-M-M-Mom, p-please don't b-be mad…" Naruto stuttered as his head turn to his mother, only to blink at her smiling face.

"Lapochka, why don't you go with Uncle Steve and pick out a present to open first before dinner?" Natalia smiled with closed eyes.

"Y-Y-You're not mad?" The blonde stuttered nervously.

"At you, never." The redhead nudged him gently toward the table with gifts before she turn to his girlfriends as she equipped her Widow's Bite with hard look, "I'm mad at them. They defiled and corrupted my little lapochka and this is unforgivable!" She walk toward them with angry glare and her son quickly run after her, attempting to stop her.

"MOM, NO!" Naruto hugged her torso as his feet skid across the floor, "NO! Don't hurt them! They did nothing wrong! I love them!" His feet skidded faster, "Everyone, run! RUN!"

"…" Everyone who are not involved just stare on with various expressions until Tony speak up, "Damn, lucky bastard…"

"…I won't be not sure about that." Steven glanced to the relatives of Naruto's girlfriends as they stand still with mixed emotions and couple of them look like they are ready to kill the blonde at any moment like Logan and Hank Pym.

"Still lucky bastard either way." The billionaire muttered.

And that end the final chapter of IANM!

Yes, I'm ending it here. I know there are more who can be his mother in any form and sorry if you don't see any character you want to see as his mother. If you want to see one, ask someone else or write it yourself.

Anyway, I think that's all I can say for now. Thank you for your time to read it.

Please leave reviews and feedback here. The flames will be tossed into the fireplace.