The blonde beauty took to Instagram on Thursday night to treat fans to a flash-a-thon to remember.
Posting to her 4.5million followers, the power house uploaded not one but three bathroom snaps.
Shot in sensual black and white, Christina can be seen 100% naked as she enjoys a soak.
Turning her hygiene routine into a photoshoot, the songstress posed up a storm for the camera.
In one snap cheeky Christina can be seen with her back to the lens – turning her head to show off her mascaraed come to bed eyes.
Another shot turned up the heat even more as she exposed almost every inch of her toned body.
Bending over the bath, Christina pushed out her chest as she flaunted her toned figure.
Keen to keep to Instagram’s nudity guidelines, she clutched at her chest with her hands.
Meanwhile, she protected her most intimate area by pushing her killer pins together and clever shading.
The snaps couldn’t be any further from Christina’s clean cut persona on family show The Voice USA.
Demi Lovato recently all but confirmed mass speculation she has teamed up with the Genie In A Bottle singer on a new single.
“I did a collaboration with one of my biggest idols,” she explained.
“I can’t give away who it is yet, but you’ll find out soon.
“I can’t wait for the world to hear it. It’s an incredible song.”
Demi previously gushed over Christina to People mag saying: “I grew up listening to Christina Aguilera.
“She was one of my idols growing up. She still is. Her voice is incredible.”