Orange Is the New Black star Laverne Cox, 30, got in on the action with this swimsuit selfie she posted on Jan. 1, sporting a plunging swimsuit.
"The Jacuzzi was so relaxing," she wrote. "Maybe I will think to take a selfie when I am actually in the jacuzzi or pool but I usually am too busy relaxing. #VacayIsLovely."
Another confident star is 39-year-old Tara Reid, who obviously has no problem willingly showing off some major cleavage, even after her infamous 2004 wardrobe malfunction exposed her botched plastic surgery.
Clad in a black bra and white jeans, Tara referenced her trophy wife character in 1998's The Big Lebowski while bowling, writing, "#bunnylebowski just got a strike."
Never one to miss an opportunity to show off her slim physique, Paris Hilton, 33, posted this scandalous pic of herself in an open bathrobe on Jan. 2.
"#SpaTime in Vegas," she captioned the pic.
But the most controversial recent cleavage-baring Instagram shot definitely goes to 17-year-old Kendall Jenner, thanks to her underage status.
As if she needed any more plastic surgery rumors to deal with, Kylie posted this super-racy photo of herself in a low-cut tank top on Jan. 7, which had plenty of people questioning her ample cleavage.