The two were both 18 at the time and graduated 2 years ago, and haven't seen each other since the graduation which caused Marinette to lose any faith she had with Adrien.
This caused her to fall deep in love with Chat Noir, her one and only partner in crime. Chat/Adrien still loved Ladybug, and even though she returned the same mutual feeling she agreed to herself that it would ruin their friendship.
Until one night, Chat Noir jumped through Marinette's trap door surprising her. But, the twist is, is that he was drunk.
That caused something to happen. It caused Marinette to get pregnant.
Although she was pregnant with Chat's baby, she didn't tell him. He didn't even remember the night, it was all a blur. She would pass it off as a guy in a bar she met and she doesn't remember him.
What happens next?
THIS IS A RATED PG 13 + STORY, POSSIBLY CAN TURN INTO A 15+ AT TIMES SINCE THERE ARE EXTREMELY SMUTTY SCENES THAT WE WILL WARN YOU WHEN THEY'RE IN THE CHAPTER. PLEASE DON'T SAY THIS IS TOO SMUTTY FOR A KIDS SHOW, IT'S HOW WE WANT TO WRITE AND SO YEPYEPYEP. ALSO, NOT TO MENTION, THEY AT 18 IN THIS SO EVERYTHING IS OK