At 44, Jennifer Aniston is really embracing her sexy side -- and she looks better than ever!

After slipping into a bikini for "Just Go with It" and playing a nymphomaniac in "Horrible Bosses," the former "Friends" star shows off her hot bod in her most revealing role yet: A stripper in "We're the Millers."

In the first trailer for the flick, we see Jen in a number of sexy outfits -- including a black thong and a lace bra -- as she dances for her male costars.

And yes, they all seem to enjoy it.

The movie also stars Jason Sudeikis as a pair of smugglers posing as husband and wife as they transport drugs across the border.

"We're the Millers" opens August 9. Will you be checking it out?

Earlier this week, Jen reunited with two of her "Friends" costars for a hilarious skit on Ellen -- check that out here.

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