AN: hey guys! Before we start the chapter... Thanks again to wonderful Su'anne for extra hard beta work on this chapter! Also contains the scene where Louis explains what do you do if the person looses consciousness. Take it seriously, and if you have an opportunity, practice it. It may save someone's life one day...

"So," started Ms. Mendeleiv, "since the three of you were so talkative during the class, let's use the same spirit to study a bit more about the topic you were all so interested in." She paused for a second to analyze the three students in front of her. "If you were paying some attention to the class, you may remember that some of features are more dominant than others. This gives us the A-dominant, and for the other features we have the a-recessive. This two types of features give us four possible combinations, each of the combination is possible depending on the percentage that each features are dominant and which are recessive. And with all of that it's possible to count the probability of the appearance for one of you." She made another pause before going ahead with her plan. "So, let's use Louis her for example. Since he's new in our school and only started to get used to all of it."

The teens froze. Oh god, Ms. Mendeleiv knew and now it wasn't even detention, it was her way of saying it... Louis and Marinette were freaking out the most. Adrien was going to find out practically inevitably! They dreaded his reaction.

"Take the parents' features for granted," continued the biology teacher. "And don't forget about blood type and rezus-factor if known."

"But Ms. Mendeleiv," timidly said Marinette, "we don't know his parents' appearances..."

"Oh, sure you do, Marinette. After all, you and Adrien are both here, so in case you forget, you can always look at each other," she added casually with a slight hint of smile.

Three seconds. Three long seconds of silence with missing heartbeats, followed by madly increased heart rate. Adrien will think we're all crazy, thought Louis and Marinette simultaneously.

"How did you know?" pure curiosity in Adrien's voice was unmistakable. No surprise, relief, confusion, disbelief or anything, thought the other two teens in slight horror.

"Oh, Adrien, I have a grade in this branch of science for something. It was pretty obvious that Louis gained both yours DNA for a specialist, yet it didn't seem possible for the obvious reasons." She sighed as if bored to explain the obvious before continuing. "However, since Time Master hasn't been defeated yet by Ladybug and Chat Noir, the possibility of Louis being from the future became very real, especially with him appearing suddenly out of nowhere. Anyway, I'll leave you three to do the task, I have to go to the principal now."

"How did you know?" blurted out Louis once Ms. Mendeleiv left.

"Why didn't you tell me?" asked Adrien back.

"I asked first!"

"But my question is more important!"

"Because we feared your reaction!"

Silence.

"...what?" barely whispered Adrien. "Me, reacting badly to the fact that I would have three wonderful children and have a happy family? Are you crazy?"

"No, not that!" cried Louis in defense. "It's just... Umm... "

"We thought you'd be disappointed that I'm their mother," finished Marinette for her son.

"Marinette... The mere thought of having a loving family makes me incredibly happy. At least it won't be Chloé," he tried to joke.

Neither of them missed that Adrien didn't reassure Marinette.

"But you hoped for another girl," she half-asked.

"I wouldn't lie, I was hoping for another... But I'm glad it's exactly you if not her. I like you a lot, Marinette, I really do."

"But not enough," she sighed dejectedly. Adrien liked her! But... loved the other. Why was she on the edge of tears if she knew that would be his reaction? "Who's the other girl?"

"Promise not to laugh?" His future wife shot him a look, clearly asking 'how could I?'. "Umm... This may sound unattainable, but it's... Gosh, why is it so hard to say? It's Ladybug."

All the tears that were about to fall suddenly disappeared. Adrien liked both sides of her?! If he wasn't lying. Ladybug seemed more than a celebrity crush, if Adrien was REALLY HOPING to win over her with all seriousness, yet it didn't seem possible.

"I knew Ladybug and Chat Noir were somehow involved!" suddenly exclaimed Louis. "That's why they were so surprised that I didn't know who they were!.. Mom, why are you smiling?" he interrupted himself.

It was so strange to hear Louis call her like that, noticed Adrien.

"I couldn't wish for the better number one," smiled Marinette.

"What?!" Adrien and Louis whisper-shouted. "What's up with you, girls?!" continued Louis. "First Ladybug squeals like crazy when she finds out I'm Louis Agreste and then once more when I tell her that you're my mother, then you're more than okay with dad loving Ladybug!"

CAUTION: DANGEROUS TOPIC! screamed Marinette's brain, and she quickly switched the conversation.

"Okay, let's talk later, now we have a task to do. SO! Dominant and recessive genes."

"Let's start with hair," decides Louis, clearly catching mom's message: we'll talk without Adrien hearing it. "I have blond, but darker blond than yours," he tells Adrien. "That's aa type, including a little bit of Marinette's dominant dark hair. By the way, Emma is blonde like dad and Hugo has dark hair like mom." It was strange and unnerving, discussing such a thing casually, noticed Adrien and Marinette.

"Okay, so aa is 25%. Counted. Eyes?" prompted Adrien.

"It's Aa," Louis seemed to know the topic well. "Between green and blue the last dominates, and in complex combination we recieve my grey color. The percentage is fifty."

"Which color did Emma and Hugo got from us?" asked Marinette timidly.

"Emma has your blue and Hugo got father's green."

"Beautiful," sighed Adrien dreamily.

They continued like this for the rest of the detention. Ms. Mendeleiv returned shortly before the teens would be free. She checked their work and remained satisfied.

"Good luck for all of you," she said when they headed out.

"Marinette... Is there a chance I could come over after the photoshoot and hang out with you and Louis. Only if it's not too much to ask!"

"S-sure," the girl smiled. She mentally kicked herself. You're gonna live with him for the most part of your life, have three children and two hamsters and you still stutter? Not cool, Marinette, not cool at all. No wonder he fell for Ladybug. The superheroine didn't stutter at least and was much more confident.

"Great!" beamed Adrien. "See you later then!"

"Aha... See you..." sighed Marinette. Louis chuckled at his mother. She momentarily composed herself and glanced at him accusatory. The boy's laughter filled the street.

-page break

"Sabrina," said Chloé, "Louis seems to be pretty close to Marinette. He is polite, handsome, better than my Adrikins in all ways, and this boy is close to HER. There's no way they're going to be dating, and we have to take care of that!"

"But how do we do it, Chloé?"

"And what for do I have you? Any ideas yet?"

Sabrina thought for a bit.

"We can turn his attention to you! He'll see how wonderful you are compared to Marinette, and will immediately fall for you!"

"Yeah... Sometimes you can be smart!" Sabrina smiled at the compliment. It was a rare case to recieve a nice word from her best friend. "Now we shall only think of how to show him what a garbage Marinette is! When you get any good ideas, come and tell me! Now you can go." The red-headed nodded and disappeared behind the door.

Chloé lay on her royal-sized bed with her laptop. There was a photo of Louis she managed to take this afternoon. His gorgeous hair, several shades darker than her own, his grey happy eyes practically tone-in-tone with hers, his broad safe shoulders and athletic figure... He looked like a literal god. And he even was nice to her! Louis didn't try to push her back or avoid her like Adrien did (yes, she noticed and that hurt). He even wore the Agreste name, even if he wasn't related to Adrien. Though he wasn't rich and famous as Adrien was, Louis was an epitome of perfection. Alert! her mind screamed. Since when did 'rich and famous' wasn't even the criteria for her boys choices?

Chloé sighed. She already chose Louis over Adrien. There was no way she would let Marinette have this gorgeous young man on her own. She would put on her best clothes, best smiles and try not to push his boundaries in order not to push him away. Wait - did she really cared that much about what Louis would think of her?

Yes, she did, Chloé realized with a tilt of horror. Is that what crushes are like, she wondered. No, the blonde almost immediately stopped that train of thought, I have a crush on Adrien, there's no way I'm gonna fall in love with Louis. Wait - did she just thought 'love'? No, not likely to happen, Chloé thought in denial.

Maybe it wouldn't hurt to know something more about him, Chloé continued her mental debate. Where he lives, what is his family like, where he goes in his spare time or who does he spend it with. She couldn't ask Sabrina to do that, that girl would mess up or her words simply won't be enough for her.

She had to find out more on her own. No, this is not stalking, the blonde reassured herself, already heading to the exit. It's just curiosity. Louis is new to our class, he needs new friends, and she could just become one of them. Or maybe more.

It IS a crush, realized Chloé with a twist in her heart while exiting the hotel, and a big one for that matter. Since when did she stop denying it? And why the mere thought was so warm? Well, my denial didn't last long, internally sighed the blonde while unconsciously heading in the direction where the school was located.

Chloé reached the school just in time to see Louis and Marinette heading to the bakery. She watched from afar the two of them entering the bakery. The teens seemed very comfortable with each other to be just acquaintances. An unpleasant feeling caught Chloé, settling somewhere between the throat and the lungs. Jealousy, she realized suddenly.

Chloé was about to stomp in the bakery and crush their cozy home sweet date (though her heart whispered that it would be a bad idea), when she noticed Alya heading to the mentioned bakery. The girl was typing something in her phone and didn't notice Chloé, who ducked to the nearest alleyway which was fortunately close and could hide her from the reporter's eyes.

Alya entered the bakery, and before the door closed, Chloé, creeping closer, could hear her greetings to Marinette and Louis, who in response didn't sound surprised or interrupted.

That was a relief to the girl outside. They weren't on a date, which meant she still stood a chance.

"I know this boy for, like, two days," she muttered to herself, "then why do I fucking care that much?" Because you like him, her brain kindly prompted. Chloé didn't even try to deny it, slowly walking back to the hotel.

-page break

Meanwhile Alya, Louis and Marinette were settling cozy in the bakery.

"How are you doing here without your parents, Marinette?" asked Alya.

"Oh, mostly fine. I can't run the bakery alone, so it's closed on a vacation now, but for you guys I can always bake anything! If it wasn't for detention, I would have made some pastries. Honestly, I miss my parents, but it's a great thing that I don't have to explain Louis to them! We still have one and a half week before they return," explained Marinette.

"Alya, how are you doing?" politely asked Louis.

"Great! I'm waiting for Ladybug and Chat Noir to appear, I want an interview from them. Marinette told you that I run the Ladyblog, didn't she?"

"I knew it by myself. In my time, you're a successful journalist, whose first famous work was exactly Ladyblog."

"Awesome! Really? And after all this time I didn't find out who Ladybug and Chat Noir were?"

"There are rumors that you knew, but decided to keep the knowledge to yourself. However, the followers deny it, claiming that if you knew, you would share."

"How cool is that! Hey, Louis, do you know me personally in, you know, your present?"

"Yes, of course! Mom and dad are great friends with you and uncle Nino, you hang out all the time."

"Uncle Nino? Sounds... Unusual. Wait. Me AND 'uncle Nino'? Like, as a couple?!"

"Yeah, you're married! You have two wonderful children, Vanessa, who is the same age as me, and Emile, who is three years younger. We are great friends, I hang out with Vanessa while Emma, Emile and Hugo also enjoy their time together."

Alya could handle everything. Finding out that Marinette and Adrien were going to be married, knowing that Louis is from future, hell, even discovering Ladybug and Chat Noir's civilian identities! (Or she thought so) But this... This was too much and all at once. So she fainted.

"Umm, I guess it came out unprepared?" smiled Louis at his mom guilty. But she was already looking for the first aid kit. "Wait!" called Louis.

"What? Why should I? Alya needs help!"

"Yeah, but if the person looses consciousness, what do you do?"

"Umm, provide access to the air and give her sal ammoniac?"

"No, mom," responded Louis, already moving Alya in steady side position. "You're not a doctor, so you don't know the reasons and the state. Which leads us to popular mistakes. To prevent it, we turn the person to the side, the upper leg is bended in the 90 degrees angle in hip and knee, knee touching the floor as an extra contact spot for steadiness, the other leg is straight. The lower arm is straight and is in one line with the rest of the body, while the upper is under the opposite ear. If he doesn't regain consciousness in three minutes, you call the ambulance. Before turning someone to the side you check if the person has any inconvenient objects in his pockets. Shame on you, mom, you should have known," finished Louis his educational lecture.

In this moment Alya sighed and opened her eyes.

"Huh... I fainted, didn't I?"

"That's okay," Louis reassured her. "Everyone would have reacted this way, I guess. It's my fault, sorry, I should have prepared you."

"Nah, you're forgiven. So, Vanessa and Emile? Great names."

"Yeah," beamed Louis. "Vanessa is so beautiful and funny and kind and just perfect in any way..."

"Whoah," interrupted Alya, "sounds like someone has a crush!"

"How could I not?" the boy turned beat red. "You don't mind it in my time, by the way!" he added quickly.

"I don't doubt that. I fully approve your union and you have my blessing," declared Alya. Marinette giggled. "What?" asked her friend, a little offended.

"You give your blessing to our future children who don't exist yet," explained Marinette. "And neither of us is even married!"

"Well, I already know Louis and I trust you guys to raise a good son," smiled Alya.

"Which reminds me," gasped Marinette, "Adrien wanted to come here after the photoshoot to hang out with us! It will be over in seven minutes!" she exclaimed, pulling down Adrien's timetable and pointing at it.

"Mom," prompted Louis.

"Yes?"

"I asked you to put down all his posters and change your computer background because it kept embarrassing me, and you obliged, now will you please prevent dad from accidentally finding this one, too? I mean, you may also want to put it down."

"Oh, sure," Marinette's cheeks were slightly pink.

"Well, I guess it's my cue to leave," said Alya. "I'm gonna scream in the pillow and maybe even get the guts to ask Nino out on a date. I mean, we are already something, so it won't be strange, right? Though it's still a lot to take in. Have fun, guys!"

After Alya left, Louis turned to his mom with a determined expression.

"I see strength in you everyday," he started, "so please, pull out your inner confident girl and try to be more mature and not a stuttering teenage fangirl, got it?"

Marinette doubted that Louis ever let himself talk to her in that tone, so she simply nodded and prepared herself for Adrien's visit.

AN: again pointing out to the firm side position (sorry, can't help it, it's my duty to inform you;) ) though it can be really useful once!