You're Next (2012)

A family reunion turns into a bloodbath in the home-invasion thriller You're Next (2013). When a gang of mask-wearing, axe-wielding killers descends upon the Davidson family reunion, they're not expecting resistance. But then Erin (Sharni Vinson), the Aussie girlfriend of Davidson brother Crispian (AJ Bowen), turns out to have more than a little of Jamie Lee Curtis in her. Final Girl Sharni doesn't show any skin, but Kate Lyn Sheil bares boob in the opening scene of the movie and Margaret Laney makes mammary memories at the 21-minute mark. Me Next! Me Next!