Here's Jay Cutler's naked ass right in your face ... courtesy of his wife, Kristin Cavallari, who gave us a view of the QB's backfield while the two vacation in Mexico.
Jay is currently jobless, but it doesn't seem to be getting in the way of his off-season travels (or his squats, not bad dude).
Cavallari tagged Tony Scheffler -- a former NFL player -- in the pic, and we're not sure why.
One thing we do know ... Jay needs to get all the sun he can.
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