Charlie Sheen and Brooke Mueller boarding a private jet in L.A. (8/19)

Oy vey, this will not end well. Either someone's overdosing (Charlie) or someone's getting buried in the backyard next to all the hookers (Brooke). From TMZ:

Charlie Sheen and Brooke Mueller have officially left the country ... together ... and TMZ has learned the private jet carrying the twosome has touched down in Mexico. The former couple hopped on the jet late Friday afternoon ... judging by the photo they posed for on the plane (above), they look like they're heading on their honeymoon all over again.

Charlie tells TMZ ... he decided to take Brooke on the trip as a reward because she's been, "busting her ass with the boys, and [she's] more sober and healthy than I've ever seen her."

As we previously reported ... Charlie has made it his personal mission to help get Brooke the treatment she needs to finally conquer her addictions.

When Charlie Sheen's the one deciding whether or not you're "sober and healthy," you know you've got issues. That guy knows clean living about as much as Sandra Bernhard knows runway modeling. Of course, the real reason Charlie probably brought that dumbass Brooke to Mexico is to be his coke mule. You'd be amazed how many bags of blow you can fit into an empty skull.

*12 Charlie Sheen and Brooke Mueller pictures total in the gallery:

[Flynet]