It was their density destiny to reunite 33 years after first giving us "Back to the Future."

(So ... now that you're all here ... go make us another sequel?)

There wasn't a slacker in sight Friday at the Fan Expo in Boston, where "Back to the Future" OGs Michael J. Fox (Marty McFly), Christopher Lloyd (Doc Brown), Lea Thompson (Lorraine Baines McFly), and Tom Wilson (Biff Tannen) met fans and reconnected with each other.

At this point, Wilson kinda looks like Old Biff himself -- but a much handsomer version.

The four stars all shared versions of the same photo, with their own sweet captions:

Very special indeed, sir.

Is there anyone out there who doesn't LOVE "Back to the Future"? If so, give them a hug today. They must be living a sad life. The 1985 film is such a beloved movie -- launching a beloved trilogy -- in large part off the strength of this cast.

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