The 19-year-old showed off new locks and ample cleavage in a satin black bra as she posed in a smouldering selfie.
The Celebrity Big Brother star decided on an image overhaul last week after making the decision to swap her trademark bleach blonde tresses for a dark brown colour.
And it looks like Courtney is pleased with her new look!
In another racy photo posted on Saturday (14 December), a make-up free Courtney soaked up the sun rays in Los Angeles wearing a skimpy black bikini. Captioning the snap, she said: "Sun-tanning in December #IMHAPPY #bikini #makeupfree."
Responding to fans who thought her newly-dyed hair was a wig, Courtney said: "It's officially dark! Made the switch a few days back. @AnushJambazian is the best hairstylist! X."
She later added: "Not a wig dolls... officially dyed it a few days back! #NewYearNewHair."
Courtney, who unveiled her new look last week at the World of Wonder's 1st Annual Wowie Awards in California (12 December), told Us Weekly: "I feel born again. I'm excited to go out and see the life of a brunette."
It appears that Courtney's transformation marks a new leaf for the reality star, who split from her 53-year-old husband Doug Hutchison in November.
Although the pair have parted ways, they continue to live under the same roof and Green Mile actor Doug still co-manages her career. However, Courtney has since said that their living arrangement is "unconventional".
Doug and Courtney tied the knot in 2011 when she was just 16 years old after meeting via an online acting workshop. Their relationship was well documented as a result of their 35-year age gap.
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