It's almost September, but Demi Moore isn't ready to end her hot girl summer.
On Aug. 26, the "G.I. Jane" actress posted a sweltering snapshot to Instagram while donning in a red one-piece swimsuit from her Andie Swim campaign.
"Red Hot Summer," she captioned the image.
While the photo was intended to promote the swimwear line, many of Demi's fans and celebrity pals didn't hide their astonishment at the 58-year-old's physique, something that has occurred all summer long.
"Stunning!," commented Rita Wilson. Gena Lee Nolin, who starred in "Baywatch" throughout the '90s, said, "You make my 20 something Baywatch days look boring!!!!"

Demi has spent much of the summer showing off her enviable body. In July, she almost broke the Internet while sharing a simple bikini selfie from Greece. Naturally, she was again wearing Andie Swimwear, a company she's invested in.
In July, she formally announced her partnership with the swimsuit line during a photoshoot with her daughters, Rumer, Scout and Tallulah Willis.
She said the campaign was about "celebrating togetherness and showing up for the people you love."
The star added, "It was only fitting that I got to share this moment with the people I love most."
Demi later spoke of the investment and the familial bond, saying, "It was important to me to include my daughters in this campaign, and I hope others seize opportunities in their lives to create meaningful connections and celebrate every moment with the people they love."