The Physics Professor (гет)

When they were eighteen years old, Ladybug and Chat Noir had defeated Hawk Moth. They agreed to meet as civilians after giving back their Miraculous' but circumstances got in the way. Thirteen years later Adrien and Marinette are brought back together. Will they realise the secrets of their past?
There is a lot of sin sprinkled throughout and it will get more explicit later on but this is a love story, not just smut.
Cross posted from fanfiction.net