As it is, Mary-Kate was reported to be as early as first semester.
Before we uncover the specifics, we'll let you in on a little secret: Mary-Kate and Ashley weren't that squeaky clean from the get-go.
Mary-Kate remembered being all the time.
They flaunted their smoking habit and partied until the break of dawn, now free from the odd world of straight-to-video sing-alongs.
They also starred in numerous films together.
Deciding to attend college was a very courageous move that insinuated the Olsens were just normal teenage girls and still tween role models.
Well, the girls had been hanging in circles where cocaine and ecstasy made regular appearances.
And by the time the twins were 18, they were confirmed chain smokers.