Author's Note: I understand this is probably just the weirdest concept. However, my reasoning is Rachel Berry's personality is spoiled, self centered, egotistical, and caring, all of which would make sense if she were also the daughter of Tony Stark. He would raise his daughter to make sure she knew she were a star; plus, I find it humorous to think of Rachel going, "STAR IS LITERALLY IN MY LAST NAME!" In other words, enjoy this Glee/Avengers Crossover story

Perhaps he should've been expecting something like this, given how many partners he had before Pepper. One of those days he was going to slip up and one of those women were going to turn up, possibly angry, with their hands flat against their growing stomachs. However, he had never expected something like this, expected for a baby to show up on his doorstep curled up in a basket, blinking familiar brown eyes up at him as they let out a little giggle, making grabbing motions for him to pick her up. He didn't expect the letter prodded in beside her tiny body, the only message being, 'Her name is Rachel Berry. She's yours.' Not even a note of who her mother is. Also, he doesn't quite recall sleeping with a woman with the last name of 'Berry'. Nevertheless, he took his daughter in and from then on his life had changed.

Of course, perhaps at first he felt a bit distant to his only child, wanting nothing more than to push her away and give her to a family that actually wanted a child, but when Rachel stared up at him, her eyes gleaming as his with a gummy smile, he knew he wouldn't be able to give her up. Besides, it wasn't as if he didn't have the money to care for her. Of all things, he definitely had that, but he wasn't a fatherly man. He didn't know how to raise a child, especially with her mother's absence, so what was he to do to ensure Rachel wouldn't grow up hating him or possibly getting herself hurt because he made a mistake?

But Pepper had refuted all of those fears. In fact, if he could remember correctly, she had smacked him upside the head and told him Rachel only had him and he wasn't going to take that away from her. Tony couldn't deny her either. Both girls had such a hold over his head it was almost annoying. But that was how he raised Rachel from then on. She had him completely wrapped around her little finger. Anything she wanted, Tony would happily give to her and then some. Her name had also been changed on her fifth birthday, Tony able to have her as Rachel Berry-Stark. He only wished to get rid of the Berry part. One, because he found it completely stupid, and two, because he didn't want her questioning about her mother and him having to cook up some lie since even he didn't know who it was.

But Rachel grew up just fine, without questions, without her mother. In fact, she grew up to become almost near to exactly like Tony, personality-wise. She was an arrogant person with a passion for music. She had discovered early on that she definitely did not receive her father's gift in science, but she could definitely belt out her feelings with perfection, able to move her feet in the groove of whatever song was playing. At first, Tony hadn't a clue that she was so involved with the arts personally until Pepper had caught Rachel dancing her heart out to Barbra Streisand while singing all the words she could understand. And then Tony signed Rachel up for all the lessons she could take to perfect her skills, with singing lessons, dancing lessons, as well as vocal coaches who could help her range and tone.

Perhaps that aided Rachel's ego, or it made it better. All anyone who knew Rachel(which were very few, personally, since she was homeschooled), knew she was very confident and a tad too honest with her thoughts to the point she would accidentally offend anyone. Really, she had no intentions of hurting others, she was just far too into her own head to think she would ever be the problem.

Nobody really knew her, anyway. Of course, the press knew Tony had a daughter and such, but nobody ever got close enough to really meet her; she was homeschooled and had people do her shopping for necessities for her. The only people who had ever interacted with her were Pepper, Rhodey, and the new team that had been equipped by Nick Fury, involving her father so selfishly and making him risk his life even more than he needed to be. Rachel couldn't help but hate him. He was this reason her father continued his work as Iron Man. He was the reason her father sometimes came home bruised up and unwilling to sleep because he had to put a new upgrade on his suit.

But this gave her the chance to meet new people, even if they didn't so much like her dad other than that Bruce Banner who mostly just tolerated him. Rachel didn't really give such a good first impression either considering when they all first met(which was after a nasty mission) she had stated they all stunk. Thankfully, Pepper was there to explain how she was and Rachel was warmed up to soon enough, even if her and Steve butted heads a few times because of how Steve disagreed with Tony.

Everything in her life was pretty much crazy and complicated, yet so exhilarating and simple. Rachel was sure nothing could go wrong. Thanks to her lessons, she had been getting better with her voice and she had passed her sophomore year with her homeschooled teacher and would be starting on her junior year very, very soon. Only...she didn't want to attend another two hours on the computer listening to the teacher through video chat bore her with another lesson. This year Rachel wanted something far more that she was terrified to bring up to Tony, who had been well accustomed to both the fun parent as well as the over-protective one. He wouldn't be much of a fan of her becoming a public school student.

But that didn't mean she wasn't going to desperately try and convince him.

Adorned in her usual attire of a nasty sweater along with a skirt that fell just above her knees with flats, she went over her script she had written in her 'star journal' that would aid her in getting her wish. It seemed a bit odd for her to want to go to public school, but she had heard that the nearest school had a Glee club, which meant she could compete with a team using her voice. She could show them what she was made of and help them win. Rachel was sure she'd be the best one there with her voice.

Mumbling to herself as she paced around her room, she tried her hardest to get it down just before JARVIS' voice interrupted her, saying calmly, "Your father has requested your presence in the kitchen area, Miss Stark."

"Yes, thank you, JARVIS," Rachel stated curtly, slamming her journal closed and placing it on her desk. Nodding to herself, Rachel brought on her best smile before marching proudly out of her room and toward the kitchen where her father stood above slightly burnt eggs. He had attempted to make breakfast for the both of them since Pepper had to leave on a trip and Rhodey was busy with something else.

"Hey, kid," Tony greeted, smiling up at her. "I hope you're hungry for...over-done eggs? It's a new thing. It's like over-easy, but better."

"Uh, yeah, I'm vegan," Rachel said, eyeing the eggs in distaste.

"Vegans don't eat eggs?"

"No, we don't." Rachel huffed, before shaking her head and smiling again. "Actually, I need to ask you something."

"What is it?" Tony asked, taking her burnt eggs from her plate and putting it on his own to eat. "If it's about a boy-"

"I don't know any...that's the problem," Rachel said, abandoning the script completely.

"Your problem is you don't know any boys?"

"No. No, what I mean is...I don't really know any other kids my age, and I think it would help improve my social skills in time for Broadway if I interacted with other kids my age. I was thinking...that you could enroll me into public school for this year and next. It's my last two years in school before college, and I would hate to have wasted all twelve of them sitting behind a computer screen."

"I thought kids hated school, why the hell do you wanna go to one?" Tony asked, popping an egg piece into his mouth before grimacing at the taste. "Maybe I should go vegan. That shit's disgusting."

"Okay, well, it's because I've never been to one. I would like to try it out. Happy can drive me to and from there; you don't even have to worry. And if it has to do with the media finding out, I can go by my Berry name instead," Rachel suggested, noticing the way he flinched at that last name. "Dad, I believe I am more than capable to attend classes with likeminded individuals. I am sure it is nothing but a myth that kids actually hate school. It's a place to learn!"

Tony swallowed the burnt piece and stared at her, searching her eyes to see if she were truly serious before he finally smiled and walked around the counter, pulling her in for a one armed hug. "Fine, but the second shit goes awry, we're pulling you out and you're going back to homeschool. I can call Pepper and see when registering starts. But you're not going by Berry."

"Why?"

"You're just not, okay? Might as well wear the Stark name large and proud. Make the other kids jealous of you." Tony kissed her forehead before walking off toward the elevator, more than likely going to go down to his lab. Rachel smiled, waiting for him to disappear before she cheered in excitement, hopping up and down on the spot as she tried her hardest to finally let the bottled emotions escape.

She would finally meet kids her age! She would get to sing her heart out with other kids who weren't her father, Pepper, Happy, or Rhodey. She'd get an actual audience who would adore her and praise her as she so deserved. Rachel Berry-Stark was going to high school for junior and senior year.