Can You Guess the Celebrity Side Boob?

This next side boob is property of a brunette babe who we can confidently say pulls off virtually any outfit. Or no clothes at all, if that's what she prefers. Basically, she's a top-notch Hollywood sex symbol who's been linked to a former leading member of N'Sync since 2007.  It might also be important to note her acting chops are extremely impressive, landing gigs both on TV and the silver screen.

Whose puppies leave us panting like pathetic little puppies?