#I was right in my supposition that she lies a lot and pretty casually though

[flightfoot]

Marinette is the second-biggest liar in Miraculous

Marinette's fascinating. She says she hates liars, but she will freely use lies to get things to go the way she wants - sometimes to help others, and sometimes to help herself. To the point that I'd argue Marinette's a Guile Hero, even. Outside of cases where NOT lying would have catastrophic consequences (e.g. Marinette needs to tell a lame excuse in order to go be Ladybug), she'll lie to try and avoid embarrassment or to help accomplish some goal she has.

The show doesn't often focus too heavily on the fact that Marinette's lying during these, so I feel like they're overlooked a lot, but I'd have trouble telling those lies, personally, since I really don't like lying. Something really needs to at least be true from a certain angle in order for me to feel comfortable saying it.

Anyway, I've decided to go through all the episode transcripts to document these cases in order to get a clearer picture of them, and try to figure out what it means for Marinette. I'm not going to include cases where Marinette's lying to herself, lying so that she can run off and fight the akuma, lying to try and trick an akuma into a position where they can be defeated, lying to maintain her secret identity, or things like that, though there will be some gray areas, of course.

Darkblade

While most of the time when Marinette's late to class it's due to her doing something as Ladybug (which she obviously can't tell people, so she has to lie), she'll lie even if she's late due to things she COULD explain, like when she was working on a trap for her diary and lost track of time.

(Marinette enters the classroom.) Marinette: Hi! I'm sorry! I-uh, I-uh, the bus, (Marinette starts coughing), dry throat!

The Mime

Marinette accidentally deletes the video of Ladybug talking to Alya, so instead of fessing up to the mistake, she steals Alya's phone so she can recreate the video, lying to Mylene about why she has the phone when asked.

(Marinette's phone rings.) Marinette: Hey there, Mylène! Mylène: (from phone) Do you have Alya's cellphone? Marinette: Uh, Alya's phone? Ah! There it is! It must have fallen down off her bag! Silly girl. Alya: (from phone) It's me! I'm here too. Marinette: Oh! Hi, Alya. You're on speakerphone? Hmm.. 'kay, I'll give it to you later on...at the show. See ya! (Tikki looks at her deceivingly.) Marinette: Don't look at me like that. This is all gonna work out! I think...

Marinette does fess up at the end of the episode at least, since she couldn't recreate the video.

The Collector

I'm not counting Marinette's lie that she used to return the Grimoire, since she stole it at Tikki's behest for good reason, and it was best that she not hint at the truth of how she obtained the book.

I AM counting Marinette lying to Fu though, because while I understand why she did it, telling him the truth was a viable option.

Master Fu: How did you discover this book, Marinette? Marinette: (Marinette has a flashback of Adrien with the Miraculous book.) I... uh... I found it, lying on a bench in a park close to... close to the school. Master Fu: You didn't see who it belonged to, then? Marinette: No. No, I...didn't. (Tikki looks at Marinette in a bewildered manner.) Master Fu: What a shame. For a moment, I thought we were about to discover the identity of Hawk Moth. We would've had a chance to defeat him. Marinette: Uh... I could investigate if you want.

Prime Queen

While Marinette double-booked herself as Ladybug and as Marinette and her not being able to say that she double-booked herself is partly why she was driven to lie, Marinette DID have other viable options for dealing with the situation she'd created for herself. She could have just gone to the bathroom, called either the network or Chat Noir, and said that something came up and she had to cancel. I don't know that that would have been the better option per se given how many people would have been disappointed by that, but it would certainly have been the more responsible choice.

Marinette:(Stutters) Oh, I forgot to err, tell my bakery something. They're in the parents downstairs. Do you mind keeping an eye on Manon while I'm not here? Alya: Don't you mean tell your parents something in the bakery? Marinette:(Continues stuttering.) Err, right. Well, err, sometimes, it can take a while - they don't always understand even when I explain. Err, actually, it's not their fault, they... Alya: Marinette? Marinette: Yes? Alya:Go! Marinette: Right! (Marinette then leaves with running down the stairs and starts talking to Tikki.) Alya's such a good friend, I feel so guilty for inviting her over just so I can leave her with Manon - then again, Alya is Ladybug's biggest fan - she'd be crushed if her favorite superhero didn't turn up for her favorite TV show.

Glaciator

This one's a weird example. I'm not sure why Marinette even lied about this. Maybe for privacy's sake? It's not exactly a secret that she loves Adrien though, and she's not doing it out of denial.

Marinette:(stares at the ice-cream) Uh...um. No! I- There's been a mistake! I'm not in love with anyone. And I think I just lost my appetite. (hands the ice-cream back) André: Why of course you are, my little one. When there's love burning in one's heart, André knows it from the start. Enjoy your ice-cream, Marinette. I know he'll be here. (Marinette stares at her ice-cream with a sad look on her face) Ivan: Green eyes like mint... Who could that possibly be? Marinette:(to André) Thank you, but you've got it all wrong. I don't have a- (She suddenly hear a whistle. She turns her head and sees someone walking who has the same clothing as Adrien) Adrien? (But it turns out to be Wayhem. She sighs)

...okay so this other part from Glaciator isn't a lie, but I think is something I need to note, considering some of the things Marinette does down the line.

Ladybug: Listen, I don't wanna play around with your feelings. It would be the same as lying to you. I don't wanna do that. You're more than a partner, Cat Noir. You're my friend. And I'd never wanna lie to a friend.

Like I fully believe Ladybug meant this at the time so she wasn't lying, but man this did not age well.

Troublemaker

This is another "Marinette lies to avoid embarrassment" scenario. She's not ready to confess to Adrien yet.

Marinette:(interrupting Adrien) Oh, so you watched the show, then! (laughs nervously) Well, uh, look...about what you saw on the show last night — the totographs, in my room— Adrien: You mean the photographs? Marinette:(assertively) The grotographs, exactly! (meekly) It-it's not what you think. (pauses) See...I'm really into fashion, and, umm... Adrien:(leaning forward with a piercing, impish glare) Are you lying? Marinette: No! I'm so not into you—I mean, sure, I'm interested in you, but, um, not in that way; well, you know, ha-ha-ha-ha...ha ha!

Gigantitan

Marinette does lie to Adrien about why she came to the park out of nervousness, she does this a lot.

Marinette: I came here to do some sketching! (holds out her sketch pad) I can't believe we've run into each other here! Hey, would you like to—?(She and Adrien hear his bodyguard honking the car horn impatiently) Hang pout? I mean, hang about? No, hag out? (The bodyguard groans again) Oh, forget it. (chuckles) Better not keep your guard waiting. Adrien: Uh, okay. (Marinette sighs when she realizes she still couldn't ask Adrien out. Her friends are all annoyed at her as well.) But we can take you home if you want it.

Befana

Marinette does lie to her grandma about liking her candies in order to spare her feelings, which isn't really a bad move, but it didn't turn out well either.

Marinette: No! No, it's awesome! I can make this work. It's perfect, grandma. Thank you. Gina: Your Nonna has also brought you your favourite candy! (she places a tin in Marinette's hand) Marinette: Oh! (she laughs uncertainly) Gina: You still love them, right? Marinette: Yes, yes of course...

Gorizilla

I guess this is another "lying out of embarrassment" deal, though I'm not sure why she even bothered with Alya, she's FULLY aware of how enamored Marinette is with Adrien.

Commercial voice and Marinette: Radiant. Carefree. Dreamy. Adrien... (Both Marinette and Tikki suddenly hear the phone. Marinette pauses the video to pick up when she sees that the caller ID shows Alya.) Alya: Marinette, I've been waiting for you for fifteen minutes! Where are you, girl? Marinette: Uh, I was deciding which swimsuit to wear. (chuckles) (The video from her computer starts playing again.) Commercial voice: Radiant. Carefree. Dreamy. Alya: Uh-huh. And the Adrien's ad helps you pick out a swimsuit, girl?

Style Queen

This is another case where Marinette's lying because she's nervous and scared, she doesn't want Audrey to turn on her.

Audrey: What is this? Marinette: Uh… (nervous laughter) Chloé: Uh, Mom, this is Marinette Dupain Cheng, the loser! And this is a hat she made, because she thinks she's a designer. (holds the hat upside down) She even signed it, look. Marinette: I— It's not me, it's another Marinette! I was just bringing it to, uh— Nathalie: Marinette! We have to go. (Marinette takes the hat and runs off with her face buried in the hat)

Reverser

This is another case where I'm not even sure why Marinette lied? Honestly she seems to do it instinctually when she panics. She could've told Adrien the truth about her and Marc wanting to see whether Nathaniel likes the book Marc wrote.

Marc: Do you think he likes it? Marinette: Look at his face, of course he does. Adrien: It's rude to spy on people. Marinette: Eh.. (quickly spins around) No! It's not what you think at all! It's just that... it's gonna be... eh... Nathaniel's birthday soon and, ehm, Marc and I wanted... to give him a disguise... I mean, surprise! Adrien:(not paying it) Cool! (winks) Very typical of you, Marinette. Well, if you need any help with that, let me know. Marinette: Sure won't! (higher pitched voice from embarrassment) Sure will. (slumps) Marc: You're just as shy as I am, aren't you? Marinette: Just do as I say, not as I do, okay?

Anansi

Marinette wants to make sure Nino wins the arm-wrestling competition so Nora will take him seriously, so she sabotages Nora (and uses a lie to give herself the opportunity to do so).

Nora: Really? Is that all you got? Alya: She's gonna rip his arm off. (shakes her head) Nora:(fake yawns) Marinette:(gasps) Over there, an akuma! (points past Nora) Nora:(turns her head to look where Marinette pointed) What?! (Marinette grabs Nino's and Nora's hands and pulls them towards her, so Nora loses the wrestling.) Adrien: And the winner is… Nino! Marinette:(fake sheepishly) Oops, my bad; it was just a fly.

Marinette does fess up to Nora afterwards, thankfully.

Bakerix

So here, Marinette wants to get Roland to open back up to her father, and she's pretty sure telling the truth will get her frozen out (which she is most likely right about) so she resorts to trickery.

Tikki: What are you waiting for, Marinette? Marinette: If I tell him who I am right away, he won't listen to me, just like with mom. (rings doorbell) Rolland: (through an intercom) What do you want? Marinette: Uh... I'm... a friend? Rolland: I don't have any friends. Marinette: This won't be easy. (rings doorbell) Rolland: What do you want? Marinette: Hello, sir. It's the mail lady. Rolland: Do what you usually do. Throw the mail in the trash. (Marinette looks over, sees the mailbox empties into a trashcan. She sighs, then rings the doorbell.) Rolland: What do you want? Marinette: It's for the firefighter's calendar? Rolland: Ah, doesn't need the fire. I hate calenders!

I find it interesting that Tikki actually calls Marinette out for her attempts to infiltrate, including her lying.

Tikki: You sure you should be sneaking in, lying, and pretending to be someone else? You've never met your grandfather, you don't know how he'll react! Marinette: Well, it's not exactly a lie. After all, I am actually- (loses her balance) Delivering the! All the uh! (catches herself) The flour! What really matters is that he comes to dad's birthday party, and that they both make up. (Pushes the front door open, then whispers) Hide, Tikki! (She examines the house as she walks in, noticing all the old-fashioned technology and furnishings)

And of course, she continues to lie to Roland after getting in. I'm not actually sure what her plan was here? I guess to build up some sort of rapport with him before revealing the truth.

Rolland:(startled, turns around) You're not Gilbert! Marinette: No... I'm, um, Germaine! His cousin! Rolland: Hmm. Aren't you a little young to be delivering flour? Marinette: I'm... an intern! (giggles) I'm doing a flour delivery internship, because some day I wanna own my own flour shop! Rolland:(frowns, and turns back to his dough) It's good to be ambitious. You can put the sack down now. Have a nice day. (to his mouse) Soot! (the mouse brings over a bag of soot) Marinette: So you're a baker then, huh? Rolland: Are you a flour delivery girl or a nosy detective? Go on! Put the bag down and be on your way! Marinette: That oven you have there, it's a '72 La Pegnole, Right? It's a rare woodfired model! They only made a few hundred of them! Rolland:(spins around) How did you know that? Marinette: My daddy- uh, um- My bready, bread history teacher taught us that. Rolland: Well, that's new. (incredulous) You need bread history classes to become a flour delivery person now? Marinette: You bet! You have to study for ten years to be a delivery person these days! Rolland:(throws his hands up, then returns to kneading) Good luck with your internship, Germaine. Now put the sack down and have a good day!

Weredad

I'll let Marinette's initial lie about being in love with Chat Noir slide because she panicked and only said that because she believed it was the only way to conceal her secret identity, though there were better options, she just didn't think of them.

I AM counting the way she reacted to Chat gently turning her down though, she had time to think that one through and she went way overboard.

Cat Noir: Anyway, I'm afraid my heart belongs to someone else. (Marinette looks up) Even if she keeps rejecting me. (She looks towards Cat Noir) Even if she loves somebody else. I'm in love with Ladybug. (to Marinette) I'm really sorry, Marinette. (Her parents recoil in shock.) Marinette: (excitedly) Oh, this is so— (She remembers she's supposed to be heartbroken.) Uh… (She looks at her parents.) So sad! (grabbing Cat Noir, dramatically) Oh, to think I spent all this time following you everywhere to tell you that I loved you Cat Noir! (cries) I am so miserable! (weeps on table) No one will ever love me! (Her father looks sad and concerned) (into her hands) I'll end up all alone with my hamster, (running to the stairs) and its name will be (inhales) Loneliness!! (She slams the door and continues crying)

Marinette: (singing) La, la, la, la, la! Ah, such a relief, Tikki. Phew! He's not in love with me. (Tikki looks disappointed)

She really didn't think through how her overreaction here would make Chat feel at all, or how it might cause her parents to act towards Chat.

Silencer

For Silencer, I think Marinette lied here because she didn't want to bring up what seemed to be a love confession that he might not have truly meant as himself. I do still think she should have told him since he directly asked her what he said and because what he said still affects her behavior towards him, so he deserves to know, but I see why she didn't at least.

Marinette: (grabs ahold of Luka before he goes onstage) Luka? Did you really mean those things you said when you were akumatized? Luka: I'm sorry, Marinette, but I don't remember. What did I say? Marinette: Uh, oh, nothing. It was nothing at all. You were possessed by Hawk Moth's akuma.

Christmaster

So this is another "lie Marinette's telling out of embarrassment", though it's also a kind-of pretend-lie, like when Alya claimed to Manon that she was secretly a unicorn. With little kids the line between lying and playing pretend gets blurry at times.

Marinette:(thinking) Uh, look I can't tell you that these are the gifts I've made for Adrien's next 35 birthdays. Cause you'd tell your brother Nino and he'd tell Adrien and Adrien'd think that I'm totally crazy! Wait, maybe I am. (To Chris) Hmm. I can't tell you I'm one of Santa Claus's elves on a secret mission and that I'm looking after one of his boxes of gifts. You wouldn't be interested though; because gifts are for babies, right? And you're a big kid. Chris: That's a lie! Marinette: What, that you're a big kid? Chris: No, that you're one of Santa Claus's elves! Marinette: I can't say anything more.

I do find it interesting that Tikki called her out on it though.

Tikki: A Christmas elf on a secret mission, seriously, Marinette, don't you think you went too far this time? Marinette: I know, Tikki, it was pure ridiculousness. But I couldn't tell him the truth about the gifts. Besides, I simply told Chris a nice little story, which hopefully will teach him some patience. (She picks up the felt dolls and walks to her desk. Tikki looks unsure.) Speaking of patience, I've got an idea of what I can give Adrien for his 50th birthday! Give me a hand?

There's also some follow-up with Chris at the end of the episode.

Marinette: Sure will! It'll be awesome. We're really good buddies. (Alya closes the door) I know I shouldn't have told you that I was one of Santa's elves. But you were acting like— Chris: A baby, I know. Mommy says lying is wrong. So from now on, we'll always tell each other the truth, okay? (He puts out his pinky)

Ikari Gozen

Most of Marinette's nonessential lies are white lies because she's nervous or embarrassed or she thinks it'll help the situation.

What she does in Ikari Gozen is not that. While I don't think she was actively thinking in terms of "I want to hurt Kagami," that was mostly because she wasn't thinking of Kagami as being an actual person with feelings that could be hurt. It's amongst the worst things Marinette has ever done, though she DID at least realize she was being an ass by the end and tried to make it up to Kagami.

Tikki: Marinette, this isn't fair to Kagami. If you won't be her friend, she won't be able to play. Marinette: Yeah, right. She's so smart, I'm sure she'd figure a way around it. Probably even do it twice as fast by herself. In fact, I bet I'd just slow her down if I went. (gasps) Of course! You're right, Tikki! If I stick with her, I can make us lose. And then Adrien would never see Kagami win and they'll never fall in love. Tikki: Uh, come to think of it, perhaps it would be better for you not to go. Marinette: Hide, Tikki! The game is on! (runs over to Kagami) Kagami! Woah! This must be fate! I mean, what were the odds of you and I being paired up? One in ten million at least. Right? So awesome! (chuckles) Kagami: You didn't look too happy about being my secret friend, though. I saw you turn around and walk away just now. Marinette: (her eyes twitch) I-I actually thought I'd, um, gotten the place wrong. I totally hadn't seen you yet. No way! Really, I'm super excited to play the game with you. (smiles nervously)

Party Crasher

So Marinette didn't feel like telling the other girls the truth about wanting to investigate what all the boys were doing.

Marinette: (senses something is wrong, gasps) Oh! Uh... speaking of excuses, I- I- forgot that I was supposed to help my... grandpa bake a cake for one of his mouse's birthday today. Sorry, Mylène. Catch you later, girls! (takes off) Alya: Did I miss something, or is it bad excuses world championship today?

Tikki actually asked Marinette about it later on. Turns out she lied in order to spare Mylene's feelings.

Tikki: Marinette, this isn’t the way to the bakery. Marinette: No, Tikki, I just said that so I could lead my investigation undisturbed. Tikki: You lied to your friends...? Marinette: I didn’t want to upset Mylène. It was her idea to plant the trees this afternoon. But something totally fishy’s going on. All the boys are unavailable with really lame excuses, and trust me, I know a lame excuse when I hear them. I’ve turned into an expert at them since I became... you-know-who. (winks) I know, I’m gonna call Ivan. He can’t lie to save his life. If there’s something secret going on, he’ll definitely blab.

Marinette comes up with a plan that involves more lying, which again, Tikki calls her out on.

Marinette: All the guys are together at Adrien’s place, so why can’t I be there too? I’ll just pretend I was passing by and, uh... Tikki: Yet another lie? Marinette: Just a half truth.

Marinette's not allowed in since it's boys-only, so she disguises herself and lies in order to crash the party.

Marinette: (in a fake accent) Hi there! It's a-me: Marino! Your neighbor! I heard there was a party going on here, a guy's-only, so I'd like to come-a too, because, uh, I'm a guy. Heh! In fact, it's hard for me to walk with all these guy muscles of mine. Hehe! (The gate opens. She cheers in her normal voice) Aha! (goes back to her fake accent) I mean, hoo hoo! (walks inside and into Adrien's room)

Marinette, as well as Nino, both admit that they weren't exactly honest this episode.

Nino: (to Marinette) Things would probably have gone differently if I hadn't lied. Marinette: I wasn't completely honest today either, but... Nino & Marinette: ...I did it for Adrien. (laugh) Marinette: If we hurry up, we can still plant trees with the girls.

The Puppeteer 2

So this is another case of "lying to avoid embarrassment".

Manon: Really? But I thought you and Marinette were boyfriend and girlfriend. (Marinette squeaks) She has lots of photos of you all over her bedroom. Adrien: (laughs) That's because she loves fashion and I'm a fashion model. Manon: But then why are there so many hearts drawn on them? Marinette: (laughs nervously) Those aren't heart! Those are, uh, upside-down spades! I was just coming up with some new, uh, patterns, for my fabric designs. (covers Manon's ears and leans towards Alya with clenched teeth) You told me you wouldn't tell Nino!

Ah, the honesty of little kids, always making things difficult.

Adrien: Were you serious when you were talking to the statue? I mean... me as a statue? Marinette: Serious? Me? (fake laughs) You gotta be kidding! I'm the queen of pranks! (fake laughs) I knew you were playing a prank on me, so I just wanted to get you back! Gotcha!(laughs forcefully) Adrien:(slowly) So you didn't really mean all the things you just said? Marinette: Of course not, I was role playing! I was in love with a statue, not with you! (stands) If I'd feel anything for you, it wouldn't be like for that statue, rather like, for a... regular human being! (fake laughs)

Again, more lying to avoid embarrassment.

Shanghai Special

So here, she's lying about wanting to reconnect with her roots because she thinks her parents will think it's lame/creepy for her to want to fly halfway around the world to follow Adrien. Though she does genuinely end up connecting with her roots and enjoying her time with her great-uncle.

Marinette: (enters) Mom! Sabine: (turns to her) The package! It'll never make it in time! Marinette: Yes it will, because I'm gonna hand it to uncle Wang myself. (Tom and Sabine look perplexed.) You see, because it's high time I visit my uncle in person! Because my uncle- (trips over the package and gets up.) It's my roots. And I've been trying to connect to Adri- I mean, my roots - for so long! And he keeps- I mean, they - keep eluding me. (Tom and Sabine look at each other) And without him- I mean them - without my roots- I mean, I feel incomplete! (She covers her face with her hands and peeks from between her fingers.) Sabine: Marinette, are you saying that... you want to go to Shanghai?!

Truth

Obviously Marinette lies a lot in this episode for secret identity reasons, but she also just does it out of embarrassment.

Luka: Thanks for the photos of your bedroom (Marinette checks phone and discovers the accidentally-sent pictures by Ziggy) and of Adrien. Marinette: Ah, my room! Yeah, I- uh- it's full of photos of Adrien because I uh... I'm using them for fashion pics for my blog and I need your opinion on them because I know you have great taste, Adrien. Luka: My name is Luka. Marinette: Haha yes of course, Adrie- I mean, Luka. You're Luka, obviously, hehe, because you're you, and I am me, Marinette. Hehe, uh, I'm so sorry, it's just that I've been so busted- uh I mean, busy!

Gang of Secrets

I'm not gonna list every instance here, but Marinette's pretending to be okay to the point that it goes beyond "lying to herself" and more to "is afraid to let anyone in and is lying because she's scared."

Marinette:(crying) Alya: Marinette? Have you been crying? Marinette:(whilst faking the emotion) Me? Crying? Are you kidding? I'm super happy! Let's celebrate and have a party! I'm so happy!

Crocoduel

So this is a case of Marinette lying because she's panicking and wanting to get out of the situation she's in. She asked Juleka to somehow disinvite her own brother from their shared birthday, assumed that she had managed to do it, and when she showed up and found that Luka was there, she flailed. She claims to Alya that she doesn't want to talk to Luka because she's afraid he'll get akumatized if he hangs around her and they're not dating, with knowing that she broke his heart, but honestly it mostly seems to be because SHE can't handle being around him, knowing she broke his heart. Luka's handling the situation just fine.

Luka: Hey, Marinette! Marinette: (panics and runs away) Excuse me! Sorry! I've got something to do! It's super urgent! Yep! Bye! (falls on the stairs that leads below the deck) I'm okay!

Ephemeral

This is another case where I think Ladybug REALLY screwed up. She's not telling a malicious lie per se, but she's trampling all over Chat Noir's agency with nary a thought to whether he has the right to decide things ABOUT himself FOR himself, since she's afraid he'll make the "wrong" choice. Honestly I think this IS probably the worst thing she's done to date, even the Big Lie she tells in season 5 is more understandable in my opinion.

Cat Noir: Oh, yeah! So then, why did you need me exactly? Ladybug: Well... actually, it's kind of linked to what happened today. I've given it a lot of thought ever since I became guardian, you know? (leans on the fence) And, I've realized that... you were right after all. (turns to Cat Noir) We should tell each other our secret identities. Cat Noir: But, aren't the secrets supposed to protect us? Ladybug: I thought so. But when you didn't show up today, I didn't know how to locate you because we can't communicate when we're not transformed. If something bad happened to one of us when we're not heroes, we could know about it. It would make us stronger. We'd be able to defeat Shadow Moth quicker! Cat Noir: (walks towards Ladybug's side) So, we're doing this, for real? Ladybug: Yes. Cat Noir: Wow. Okay. You go ahead, m'lady. Guardians first! Ladybug: No, you first. Cat Noir: Let's do it together. (Viperion listens to their conversation while he's in the sewers.) Ladybug: No, I mean it. You go first. I'm... feeling kind of... awkward.

I know Ladybug actually going through with this plan was overwritten in the new timeline, but this WAS still her plan, she just got interrupted before she could put it into effect, so I still count it against her. It was really screwed up how easily she was able to lie to Chat here while appearing totally sincere.

Strikeback

Ladybug briefly tries to pretend that she misspoke and has no idea what Chat's talking about when he catches her talking to Rena Furtive, but she sees that he's not buying it and fesses up. She really doesn't directly lie about someone knowing her identity, Alya helping them out secretly, etc, during season 4, but she definitely keeps it secret when she shouldn't have.

Ladybug: Nice one, Rena. Cat Noir: (surprised) Huh? Rena Rouge? Where is she? Ladybug: Uh... Rena who? (Cat Noir squints in annoyance.) Ladybug: Fine, she's hidden. It's best you don't know where, it's too—

Destruction

Alya's trying to get Marinette to stop spiralling and watching news footage about Monarch, but Marinette's doing so anyway and lying about it so that Alya doesn't lecture her.

Alya: (in the video blog) Now that Shadow Moth stole almost every Miraculous and told us people to call him Monarch, with all these powers, what is he planning? (The real Alya enters the room's trapdoor, much to Marinette's panic.) Alya: Marinette, what did we say? Marinette: (pauses the video, stuttering) Th-The video launched itself! Alya: (sarcastically) Of course, it did. (goes back to her normal tone) Hey, you want some fruit with your tea?

Elation

So this one is a combination of Ladybug lying to try and get what she wants and her lying to try and make her behavior look normal.

Ladybug: Let’s at least kiss before we say goodbye! (kisses Cat Noir on both cheeks) Cat Noir: (steps backward, causing Ladybug to fumble on her feet) What are you doing? Ladybug: I always kiss four times. Come to think of it, actually, four is a little stingy. How about eight? Cat Noir: (steps away) I know what you’re trying to do and it’s not gonna work, m’lady. We’re partners and friends. Ladybug: Wait, what's up with you? You have a new girlfriend or something? Cat Noir: (gasps and laughs) You’re testing me! Could I tell you if I had a girlfriend. No, because the less we know about each other, the harder it is for Monarch to win. So, did I pass the test? Ladybug: (dejected) With flying colors.

Derision

Here she lies to avoid going to school, since Chloe's set on making her life miserable. I don't blame her, honestly.

Sabine: Aren't you eating, sweetie? Marinette: I have a tummy ache. Can't I stay home today? Sabine: Hmm... Yesterday, your foot hurt, and the day before that, it was your head. Come on, chin up. You only have two weeks of school left with her. She probably won't even be in your class next year. Marinette: Three years in a row, Mom. Why would my luck change now? (stands up from the table and bumps her cereal bowl, spilling milk on the table, her clumsiness thriving yet again, to which Sabine simply smiles)

Emotion

I'm not sure even Marinette totally understood why she so desperately wanted to crash the party in this episode, her explanation to Tikki didn't really make sense to me. She wanted to support him and let him know that not telling her was alright or something?

Chloé: (upon seeing Marinette and scrutinizes her) Oh! You're new! What's your name? Marinette: Uh- Zoé! My name's Zoé! Chloé: Yyyuck! Just like my half-of-a-sister. But at least you have style! How rich are your parents? Rich? Very rich? Immensely rich? Of course, otherwise you wouldn't be here! (grabs Marinette's hand and pulls her along across the dance floor) It's too bad we can't bring out underlings with us. I'm sure these tin cans can serve properly but we can't make fun of them! (grabs a drink from a Tsurugi robot and kicks it) So lame! What's your underling's name? Marinette: Um- Chloé. Her name is Chloé.

Conformation

Here, Marinette lies about wanting to check on Adrien. I'm not entirely sure why? Like, does she think her parents might try to stop her...? I think is one of her "panic-lies", where she lies instinctually when scared even when there's really no good reason to do so.

Marinette:(Runs downstairs and passes by her parents watching TV on the way.) I have an errand to do. See you later! Tom:(Blocks the door.) A-Aren't you going to eat something before you leave? Marinette: I'm not feeling very hungry, dad. Sabine:(Puts her hand on her husband's shoulder.) It's understandable that Marinette would have a poor appetite after Adrien's departure. Tom: But breakfast is the most important meal of the day! (Pulls out an enormous bag filled with croissants.) Marinette: Oh no, no, no, no, no, no, don't worry, I– (Experiences another flash of pain and grabs her head.) (Tom and Sabine look at their daughter with concern.) Marinette: This has... nothing to do with Adrien. I'm fine! I promise. Besides, he's just in London, he's probably doing great, there's no reason to worry. I was just heading out to meet up with my friends. (Takes the bag of croissants from her dad.) And that mountain of croissants comes at a perfect time. Love you both! (Walks out.) (Marinette's parents follow her outside and watch as she leaves from the top of the staircase.)

Re-Creation

This is the biggest lie Marinette's ever told, one that's likely to reverberate through the series for seasons to come. Lying about not knowing who Monarch is and about Gabriel being a hero. Marinette didn't lie all that often during season 5, but she did tell the biggest lie of all.

Marinette: You're not wearing it? Adrien: (while fidgeting with the rings) When Ladybug gave it to me, she told me how my father helped her to defeat Monarch, at the cost of his life. I don't know if I'll ever manage to be like him.

Action

Here, the class decides that they need to lie to gain an audience with the plastic guy. Marinette is there spokesperson, which makes sense since with Lila gone, she is by far the most experienced and accomplished liar in the class.

Marinette: Yes, it is him! Adrien Agreste in the flesh! (gestures to Adrien as he smiles) Amazing, right? (as Nino breaths a sigh of relief) And as it turns out, we're escorting him, all of us, to his meeting with Mr. Bertrand King. Adrien: Right, that's it. I'm uh...(looks towards Marinette for help) Marinette: Here to discuss new advertising campaigns for the Morpho fans. Adrien: Right. Marinette: We're his personal team of... (coming up with an excuse) ...delivery and cleaning people. (the Guard just stares. He then takes a look at Kim, Max, Adrien who smiles with Marinette, Alya, Ivan and Mylène.)

So some surprising results from this. Marinette barely lies in season 1, but she does so quite a bit in the following seasons, especially season 2. I didn't realize before that Marinette has this tendency to lie instinctually when she's panicking, even if she doesn't actually need to, it seems like it's become a defense mechanism for her.

Marinette's definitely a Guile Hero who can and will lie when convenient, sometimes out of embarrassment, sometimes because she's scared, sometimes to attempt to spare someone's feelings, sometimes to try and gain control of a situation, and sometimes just to get what she wants. Most of them aren't *bad* lies really, but she's definitely not the super honest person she sometimes gets painted as, both in the show (by Adrien, which makes sense, he thinks highly of her) and by the fandom. She may hate liars, but that doesn't mean she won't use it as a tool when she thinks she needs it.