A time skip occured, and it was a normal day at the L/N household. Y/N is in his home, enjoying a day of just relaxing and spending time with his kids and of course, his assistant, Sylvia.

Though his intentions are not as suspicious, the kids' are. What's within their little minds is something a bit more mischievous.

Right from the start, out of all the three of them, it was Blake's idea to pull off this plan. Unbelievable, ain't it? She's the most behaved out of them, after all. Only always glued to her books all day long.

Apparently, she got this idea from one of the books she had read.

"Our plan is to make daddy and Sylvia grow closer." Blake started, obviously brimming with determination to accomplish her plan.

"Then when that happens, papa will finally marry her!" Yang raised her arms in excitement.

"Shhh! Don't yell or they might hear our plan." Weiss went and covered Yang's mouth.

She shook her head and managed to get her hand off her. "So what should we do?!" Yang impatiently asked.

The small faunus began explaining her tactics to her two sisters. For 4 year old kindergartners, they sure have enough brains to pull off a stunt as to act as "wing girls" for their father without permission. Kids these days..

"Will this work out?" Weiss blurted out, unsure.

"Of course it will!" Yang encouraged her.

"Now let's go and chop chop." Blake stood up from the bean bag she's sitting on.

The three girls scattered around the house to continue their preparations and execute their plan. That leaves Ruby alone in the living room, which is probably a bad idea as she's only a toddler.

"Mama..! >:D" Was what left her mouth as she did that expression.

Minutes of waiting for the perfect timing, Weiss closely watched the two adults in the kitchen as they converse with one another. Weiss was so small from her hiding place that we wasn't noticeable.

"Didn't know you like peanut butter sandwiches that much, sir." Sylvia said, quite surprised.

"The sweet taste of it is just exquisite, I couldn't help but have more." Y/N laughed.

"Even at this age, I've already lost my sweet tooth. I don't really like eating anything sweet anymore, it kind of feels bland for me." Sylvia sat down.

"Back in my younger days, my mother would always force me to eat fruits as snacks." He took a bite from his sandwich. "Then one day we happen to have peanut butter at home and tried it out as a condiment for one of the fruits, and since then I couldn't help myself but eat something with peanut butter."

Weiss begin to discreetly move around as they kept on talking. Both Blake and Yang secretly arrived and were watching.

"That's an interesting fact. Since when I turned 19, I would always balance my diet. Pineapple juice is my number one drink! You should try some, sir." Sylvia hummed as she passed the glass of pineapple juice to him.

"I'm not really a fan of pineapple juice, it gives that weird feeling to my tongue." Y/N examines the glass of juice.

"Why don't you give it another try?" Sylvia suggests.

"Hmm.." Y/N takes a small sip and after tasting it for a second he immediately swallowed and shook his head.

"Nope, still won't change my mind." He said as he was about to pass back the glass to her.

But before this act was done, Weiss found this as an opportunity to strike and immediately ran up to them. She pushed Y/N towards Sylvia with full force, causing him to lose balance.

"Wh- woah..!"

"Hehehe..!" Weiss immediately escaped the kitchen, giggling.

"What in the world was that for.." Y/N looked behind him, confused.

"Um.. sir?" He heard Sylvia's voice in front of him.

He looked back at her and was completely surprised at the sight, the two of them were too close to each other that they can feel their breaths hitting one another. And it seemed that some pineapple juice happen to spill on her top, seeing as her clothe is soaking wet.

"I'm sorry!" Y/N immediately stepped back, blushing.

"I-It's all right.." Sylvia managed to say.

"You should uh.. go get yourself cleaned." He covers his burning face with his hand.

"Huh? O-Oh! Right..! If you'll excuse me." She immediately rushed out of the kitchen.

"Good job, Weiss." Blake and Yang gave her a thumbs up.

"Girls..." They heard their father's angered voice.

"Oh no..!" The trio quickly went and escaped.

.....

"Time for plan B!" Blake announced.

After spending a whole day of putting both Sylvia and Y/N in awkward situations, it was time for their second plan to be executed. It was now night time and it's almost time for them to get to bed, but they had another idea in mind.

"Papa, let's watch a movie!" Yang jumped.

"You still have school tomorrow, you need to get as much sleep." He forbids.

"Aww, come on. Just only this once!" She begged.

"I wanna watch a movie too!" Blake popped in.

"Me three!" Along with Weiss.

"Movie!" And of course, Ruby.

"Okay, we'll watch a movie. But you have to sleep right after, got it?" He said.

"Okay." They agreed.

They spent a short moment finding which movie should they watch, Y/N says wondering why did the girls chose that movie to watch. He sets up the movie and prepared some snacks for them.

And of course, they dragged Sylvia along to watch with them, to which she immediately agreed.

They all sat down and watched the movie play. Some time passed, the three girls were so engrossed to the film that they forgot to do what they need to do for their plan. None of them even decided to make the first move, and instead continue on watching the movie in peace.

"I don't dislike your choice of picking a movie to watch. This is fun enough to watch with you girls." Y/N let out a small smile.

"They're a happy family.." Weiss mumbled out.

"Yeah, just like us." Blake grabbed both Y/N's and Sylvia's wrist and made them hold each other.

"Huh?!" Both the adults were taken back by the action that they both retracted their hands.

"We're a happy family, just like them! We have the best mom and dad in the world!" Yang beamed.

"I already told you, Sylvia isn't really your mom–"

"But you like her! Aunt Emma said so as well!" Weiss chimed in.

"Since when did she–"

"We want Sylvia to be our mom!"

"I think you shouldn't be making those demands, kids.." Sylvia said.

"So that's why you girls were messing with us the whole day... All right, if you want her to be your mom, then we'll go with that." Y/N lets out a sigh and as he smiled.

"That means.. you'll marry her?" Blake asked, waiting in anticipation.

"T-that's a little too much, though." Sylvia sweats.

"I only agreed to her being your mother but not officially." He stated.

"Awww.. our plan didn't end well." Yang said in disappointment.

"Let's just continue on with the movie and get to sleep." Is all he said before they went back to finishing the film.

The movie ended and the children were already asleep. The two had carried all four of them in their room and put them to their respective beds, after tucking them in  their blankets. They both quietly left the room and closed the door, awkwardly standing in the hallway.

"... So, what Weiss said earlier was true." Y/N spoke, looking away from Sylvia as he hides his flustered face.

"Huh?" Sylvia was taken by surprise.

"Yeah.. reason why I've taken you in a few dates. And I'm kinda pathetic how I can't make a new move after all this time." He chuckled.

"I.. I find it kind of cute, though. Seeing as you're clueless to all of that." Sylvia let out a small giggle.

"Now you're sounding just like Emma when you said that." Y/N rolled his eyes.

"Do I?"

"Anyway, you should get some sleep too. You still have a big day ahead of you as their mom." Y/N joked.

"It's still kinda new for me to be as their mom. Even though I'm only their babysitter."

"We can make you their official mom.. if you want.." Y/N turned around and faced her, his face still blushing mad.

It was complete silence. After hearing those words, Sylvia couldn't help but blush as well. She did not expect him to say that, at all.

"... T-that would be nice." She said, smiling.

"So.. does that mean you agree?" Y/N clarified.

"Yeah.. I guess so."

"All right. That's great." Is all what he said, he was still surprised and flustered from the situation.

"I-I'll head to my room and sleep now. Good night, sir." Sylvia began walking towards her room.

"Call me by my name instead from now on if we're going along with this whole thing." He halted her.

"A-All right, si- Y/N. Good night."

"Good night, Sylvia."

Nixium: Definitely didn't wrote all of this with an injured arm. Nope!