Nick Lachey and Vanessa Minnillo are trying to keep photos of the couple having sex out of the weekly magazines and off the Internet.

Last week, Life & Style published some naked (apart from their blurred-out bits) pics of Nick and Vanessa on holiday at a private resort in Mexico.

Now the couple has hired a lawyer to prevent more photos from seeing the light of day � and these ones are said to be "Paris sex tape-level scandalous."

�They are not just naked, they are being quite graphic,� a source who has seen the photos tells Perezhilton.com. �These pics make the Vanessa and Lindsay (knife) photos look tame!�

According to TMZ the two are not only making out, but having hardcore sex in the hot tub.