Kim K -- My Naked Breasts Have Been EXPLOITED!

Kim Kardashian is so familiar with her own naked body ... she recently noticed a photo of her own bare breasts on an unauthorized album cover ... and immediately sent her lawyers into attack mode!!

Turns out, two music producers -- Terrace Martin and Devi Dev -- used a photo of a woman's bare chest on the cover of their album "Terrace Martin & Devi Dev Present: The Sex EP" ... and it just so happens the image was a close up from Kim's nude photo spread in W magazine.

Kim's lawyers fired off a cease and desist letter to Terrace and Devi demanding they swap out the pic -- and stated, "We cannot imagine why you thought you had the right to use this photograph without permission."