I made this hilarious/romantic fanfic a while ago:
Adrien: How can I get Ladybug to take me seriously? She always thinks I'm just joking around, but I really love her!
Plagg: Get her some camembert.
Adrien: That only works for you, Plagg.
Plagg: No, I'm serious. It really works!
Adrien: Aha! I got it! *runs to closet* I know just what I need! *gets cologne*
Plagg: Kid, no.
Adrien: Kid, yes!! *sprays* Plagg, Claws out!
A little while later at the Eiffel tower.....
Chat Noir: *being hot as usual*
Ladybug: *unaffected by cologne*
Back at Adrien's room later.....
Adrien: It didn't work!! How could it not work??That was my BEST cologne!
Plagg: Get her camembert and she'll finally realize you really love her!
Adrien: Not happening, Plagg. It stinks!
Plagg: Don't say I didn't warn ya.
Adrien: I know what to do!
After a few days of this conversation and Adrien's many failed attempts to attract Ladybug's attention.....
Adrien: I'm out of ideas...
Plagg: C'mon Adrien! Just trust me and get her a box of camembert! I swear it works! You have to trust me. As a kwami and your close friend, I am giving you advice. It's best if you take it. Get her camembert.
Adrien: *sigh* I'm out of ideas anyway....
Later on, during patrol...
Chat Noir: Hey um, Ladybug?
Ladybug: Yeah, Chat?
Chat Noir: I got you something.
Ladybug: That's so sweet, Chat!
Chat Noir: *takes out the camembert box* I was wondering if you like camembert?
Ladybug: *gasp* I LOVE camembert!! Thank you Chat! *hugs him*
Chat Noir: Hehe... (Thinking: W.T.H. IT WORKED??? PLAGG WAS RIGHT???) *hugs back*
Ladybug: *whispers in his ear* You know I really do love you, Kitty~♡ *pulls back and kisses him*
Chat Noir: Mmph?.....*kisses back!!!*
After a few moments...
Ladybug: Now you know... and please remember, I love you.♡
Chat Noir: You know I've always loved you and I always will.♡
After patrol.. in Adrien's room.
Plagg: What'd I tell ya? Camembert really is a miracle, isn't it?
Adrien: *happy sigh* You're right Plagg, thank you.
Plagg: You can thank me by getting me some camembert now. I'm exhausted!
Adrien: Hehe, here you go. You deserve it! *brings a brand new box of fresh cheese*
Plagg: Ahh.. camembert, truly a miracle!!!