Folks in Ibiza got an eyeful this week ... courtesy of NFL star Kenny Stills droppin' trou and going balls-out at the pool!!
The 30-year-old wide receiver shared the view with all his Instagram followers on Friday ... posting a shot of him lying down on a yellow float in a swimming pool with two women chilling nearby.
Of course, goin' nekkid is a lot more common in Europe than in the States ... so ya can't blame Stills for showin' off all his ass-ets with a hilarious smirk on his face.