EXCLUSIVE

Lucy Hale Take Down My Topless Pics ... Or Else

Lucy Hale's legal team is going after a site that posted topless selfies of her in a bed.

The "Pretty Little Liars" star's lawyer, Marty Singer, fired off a threatening letter to Celeb Jihad, which posted 2 racy photos from her phone that were apparently sent to a friend. The pics show exposed breasts and nipples, and a breast tattoo came along for the ride.

Singer could not be clearer ... Lucy owns the pics and insists they were meant for a friend, but someone hacked into her phone.

We're told the site is reviewing the letter, but for now ... the pics remain front and center on the site.

Click here for info about our online advertising practices.