Montparnasse and Gavroche (Please Read Description) 

First of all, I never thought I would like Montparnasse/Gavroche, but I read E & R fanfiction that had Montparnasse/Gavroche as a background pairing. After I read that fanfiction I looked at the bond they had and realized that it would be an interesting ship. They already have so much sass towards each other and they seem to enjoy each other's company.
So this is an AU idea: Montparnasse has had enough of the Patron Minette and living as a criminal. So he decides to turn them in to the police even though it means that he has to go to jail too. A little over five years have passed and he is out of jail. In those years, Gavroche has changed from a spunky little kid into a handsome 18-year-old.
Thank you to Chanessa for helping me cast Gavroche, you should be a casting director for movies because you would be so good. Thank you SuzieTaire for helping me write the description.