X Laetitia !full! - Lupin

Since I don’t know which specific Lupin series you're referring to (e.g., Lupin III , Harry Potter 's Remus Lupin, or Miraculous Ladybug 's Lila Rossi/Laetitia?), here’s how to find a "good paper" (well-written story) for this pairing:

It sounds like you're looking for a well-written fanfiction or fanwork featuring the pairing . lupin x laetitia