Ben Affleck and Matt Damon are offering one lucky fan an experience of a lifetime -- by donating $10 to benefit causes especially important to Ben and Matt on, all fans have an equal chance of winning a package which includes a flight with your best friend to Los Angeles to hang out with both Ben and Matt at a private, star-studded event.

Yes, you read that right.

Pics: Celebrity BFFs!

Omaze, an online charity platform that gives anyone the chance to win once-in-a-lifetime experiences that also support social missions, teamed up with the best buds to benefit both the Eastern Congo Initiative -- the first U.S. based advocacy and grant-making initiative wholly focused on working with and for the people of eastern Congo -- and, which develops and delivers solutions to the global water crisis. Ben and Matt even made a hilarious video poking fun at one another for the cause, which you can see above.

Some of the choicest quips? That Ben will "bore the s--- out" of his guest with intellectual talk and how "incredibly short" Matt is.

Related: Matt Defends Ben as Batman, Crushes Robin Rumors

Check out the video to see the two rip on each other like only best friends can, and click here to donate $10 for a chance to win an unforgettable experience with both your BFF and Ben and Matt!


George Clooney vs. Matt Damon: Who's hotter?

Ben Affleck vs. Casey Affleck: Who's hotter?

Who said it? Dad quotes