Hi! So, I'm really excited about this one because this entire fic is about Luigi X Daisy, my OTP (my main OTP, anyway)! So, I'd like to tell you first of all that this is inspired by Steel Fairy's Throughout the Years, at least the format anyway. So like Steel Fairy's story, it's basically one shots of the two characters growing up, but they're all related to each other, the main differences being the entire storyline and the fact that Throughout the Years is about Mario and Luigi, not Luigi and Daisy. Anyway, I'd really recommend you check Steel Fairy's story out, it's great.
Oh, and this is important: this fic is written under the assumption that the Mario bros were born and lived in the Mushroom Kingdom their entire lives. In this chapter, Mario and Luigi are three years old and the princesses are two, with Daisy being the youngest.
So without further ado, let's get started! Oh yeah, and some chapters may not be as Luigi and Daisy related as others, but there'll always be some interaction between them. And in this chapter, it'll seem at first that there's no interactions but there will be towards the end.

Disclaimer: All characters and settings are owned by Nintendo. Without Nintendo, this fanfic wouldn't have been possible.

"Luigi!" called Mario.

"Yeah?"

"Come on! Mamma said we're going to Peach's castle!"

"Princess Peach," corrected Mamma. Even at the age of three, the twin brothers were trained to call her by her royal name. However, they sometimes slipped up.

"Yay!" Luigi ran out of his room and into the hallway. Mamma barely glanced at them before speaking.

"Come on boys, into your stroller!"

"I don't wanna go into the stroller!" pouted Mario as she put him in the double buggy. "I wanna go walkies."

"No no, you're going in the stroller." She strapped him in, then turned to Luigi, who was already sitting down, waiting for her to proceed. "Look how good Luigi is."

Although they were so young, their personalities were starting to show. Mario was the more boisterous, the most likely to get his clothes dirty and the least likely to listen to his parents. Luigi, on the other hand, preferred to stay inside and make towers with his building blocks, and was never stubborn.

As Mrs Mario closed the door behind her and pushed her boys in the direction of the castle, she thought about how lucky she was that they were still alive. She'd never quite gotten over the day she'd checked in on her babies to find them gone. Thankfully they were delivered back home a couple of days later, after a lot of frantic searching of course. She'd never discovered the real story of their disappearance, but there were rumours that a monster that bore a resemblance to Prince Bowser of Dark Land had arrived from the future and gotten Kamek and some Toadies to grab seven babies, including Mario and Luigi. These babies were, apparently, star children, and very powerful. Mrs Mario had laughed. How could her kids have such powers? They were ordinary people.

Toadsworth, the Toad who looked after Princess Peach, believed these rumours. He said that Mario had helped save many babies all over the kingdom. He was clearly a little mad... but likeable. Over time herself and her husband made friends with Toadsworth and her boys ended up befriending the Princess, and that was how a commoner like her and her family started to visit the castle more and more often. It took a lot of getting used to, but now it was normal routine.

She reached the castle. Thank goodness it was a short walk. The security knew her well, and she got past them without any problems. She rapped on the giant door, and was met by Toadsworth.

"Ah, hello, Mrs Mario," he greeted.

"Hello Toadsworth!"

"Oh, so you've brought the boys! How wonderful. Welcome, Mario and Luigi."

The twins smiled.

The Toad coughed awkwardly. "Ahem... today, we have some visitors.

"Oh?"

"Yes, we have Queen Rose and King Daffodil of Sarasaland, with their baby daughter, Princess Daisy, my Princess's cousin. Um... I'm not sure if... if..."

"Ah Toadsworth, if this is a bad time then we'd better get going..."

"Hmm. It's a shame, to be frank. The Princess was really looking forward to seeing your boys. She was babbling on about them, bless her little heart. Maybe... maybe I will ask King Daffodil..."

"Oh no, no need for that..."

But he dashed, leaving the Marios waiting. He returned after a few minutes.

"He said it is alright. Boys! You may play in the Princess's playroom. Mrs Mario, you may see the King. I'll ask one of the Toads to make you a cup of tea."

"Yes Toadsworth, thank you." She then crouched down to Mario and Luigi's eye level, but she was really only speaking to the former. "Now, I want you to be nice to the Princess - both Princesses. Remember, they're only little."

"Okay!"

They ran up the red carpeted stairs and after opening a few doors, they found Peach's playroom. Two toddlers were building a castle together, the readhead being slightly smaller than the blonde. Peach had her curls tied up with a blue ribbon, and her pink dress was clean and new. Daisy, however, was a different matter, with chocolate stains on her orange clothes, and her short hair wild and loose.

"Hi Princess Peach!" said the Mario brothers.

Peach ran to them and gave them a big hug each. Meanwhile, Daisy eyed them warily.

"Hi," waved the older brother. Luigi didn't say anything, but looked at her curiously.

She went back to playing with the bricks, not acknowledging them.

"Can we play?" asked Mario. Without waiting for an answer, they helped the cousins in finishing their castle. It didn't turn out very well, and some of it fell apart, but they decided to play with it anyway.

"I'm de pwintheth o' de cathle," lisped Peach. She was only a few months younger than the Mario brothers, but couldn't speak half as coherently.

"And I'm the king," said Mario.

"I wanna be king too!" whined Luigi.

"No you're... uh... you have to do what we say cos I'm king and Peach... Princess Peach is the princess, see?"

"What about Daisy? Who's she going to be?"

They glanced at the orange princess, who'd lost interest in the castle and started playing with Peach's dolls. They quickly forgot her and continued with the game without her.

"Luigi, clean my floor!" said the boy in red.

"Weegee, cwean my floow!" mimicked Peach.

What Luigi had to do was get Peach's toy cleaning set and pretend to use the pan and brush. He'd played the part of servant long enough to know that.

When Mario decided he was done, he gave him another order.

"Now get my crown and put it on my head."

He ran to the toy box where Daisy was and got a plastic crown. By then she'd gotten hold of Peach's crayons and was busy scribbling on the doll's face.

"Here Mario."

"I'm not Mario! I'm King Mario!"

"Here King Mario."

"Now get a crown for Princess Peach."

"But she has one already!"

"Oh. She does."

"Mario, I don't wanna play this game anymore."

"But Luigi, you have to!"

"No..."

Luigi went to the toy box and rummaged through Peach's things. Eventually he found a car, and played with it in a corner by himself. Mario decided that being king was no fun without Luigi to obey his orders, so he left Peach alone, got a different car and joined Luigi. They had a race to see which was the fastest, and the red capped toddler won.

"My car's better," he boasted.

"Let's play again!"

Meanwhile, Peach toddled over to her cousin.

"Wha awe you doin'?"

Daisy giggled as she continued to draw on the doll. Peach pointed an accusatory finger at her and her eyes welled...

And so a temper tantrum ensued.

"Daithy dwew on my dolly!" she cried. "Toadthwoth! Daithy dwew on my dolly!"

Toadsworth instantly ran in, fretting.

"Princess, what is wrong? There there, don't cry..." He picked her up and gave her a hug.

"D-Daithy dwew on my dolly! L-look!"

"Show me... Princess Daisy! Have I not told you to stop drawing on the Princess's toys?"

Daisy stared at him for a long moment, then started to scream and wail. Mario stared at them wide eyed, Luigi was frightened and Toadsworth became flustered. Instead of calming the Princess down, he'd made both princesses cry! To his horror, King Daffodil came in shortly afterwards.

"Now what's going on here?"

"Ooh, Your Majesty, I-I, she, she, I scolded her for drawing on the Princess's doll, and..."

The King regarded him coldly. "You deal with your Princess, Toadsworth, let me deal with mine."

"Ooh, of course Your Majesty, I apologise..."

But the King wasn't listening as he cuddled his daughter. "Oh my little princess, what's wrong, huh? You can't draw on the dollies, hmm? Aww..."

Both men eventually calmed the girls down and placed them on the floor again.

"Would you like to draw?" suggested Toadsworth. He ushered the toddlers to the mushroom shaped table, but there were only three chairs. Thankfully Daisy wandered off and played with the bricks once more, so there was now enough for everyone. He arranged the paper and picked up the crayons from the ground, not noticing that he'd missed one or two, and the two men left as they quietly started to scribble.

They sat there for a few minutes, and Luigi was the first to get bored. He fidgeted and turned around to see Daisy doodling on the wall.

"Mamma mia!" he said, imitating his father. He got up and approached the redheaded baby, who stared at him. "You're not allowed to draw on the wall!"

He tried to pull the crayon off her, but with no success.

"Mine!" she shouted.

"No!"

"Gimme!"

As she got more and more agitated, the crayon snapped.

"Now look what you did!" cried Luigi.

For a moment it looked as if she was about to cry. Then she smiled mischievously, grabbed another crayon from the floor and continued to draw. There were now green as well as blue scribbles on the playroom wall. Luigi was going to tell Mamma, because drawing on the walls was bad and you got into trouble and you got no snacks, like Mario. But it did look like fun...

He got the broken crayon and started to illustrate his house, at least that was what he wanted it to look like.

Daisy laughed excitedly, delighted that someone was playing with her. "Draw a flower, Weegie!"

"Okay!" Again, it wasn't very accurate, but he was very proud of his picture. Just as they were having so much fun together, Mario looked at the pair and spoke.

"Why are you drawing on the wall?"

Daisy was indifferent, but the boy with the green cap looked down guiltily.

"I'm telling! Mamma! Mamma!"

He ran down the stairs, his calls echoing through the entire castle. Luigi was scared. He was in big trouble now. And when he saw Mamma's cross face with Mario guiding her to the playroom, he knew he was going to be punished.

"Look Mamma, Luigi and Daisy scribbled on the wall, look!"

"Princess Daisy," she corrected before witnessing the sight. "Luigi Mario! What have you done?" she gave out, horrified.

"I didn't mean it Mamma!"

Daisy started to scream. "Daddy! Daddy!"

The King ran in once again, and glared at Mrs Mario. However, even he had to put his foot down on this.

"Daisy? Daisy! What did I tell you, huh?"

She wailed even louder as he put a pacifier in her mouth to keep her quiet.

Mamma spoke sharply to her son. "We're going home now. And don't you ever do that again, do you hear me?"

She grabbed the whimpering Luigi by the sleeve as he gave a final look at the Sarasaland Princess. She stammered as she apologised to Toadsworth, and promised she'd pay for the damage. Then, she was out of the castle.

"Can we go again tomorrow?" asked Mario as she put him in the stroller.

"Maybe some other time," she sighed, not planning on visiting anytime soon after the incident.

I so hope this was written realistically! I PROMISE IT GETS BETTER! Please please review! And yeah, this particular story wasn't very Luigi and Daisy-ish but they do get more romantic as they go on. Please review and tell me what you think!