Kourtney Kardashian Celebrates the Weekend by Showing Off Amazing Bod in White Hot Lingerie

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Dayum! Kourtney Kardashian is in Calvin's and ready for the weekend!

The 36-year-old Keeping Up With the Kardashians star posted an Instagram on Friday, in nothing but Calvin Klein underwear, and simply captioned the pic, "TGIF.”

WATCH: North West and Penelope Disick Are 'Frozen' Princesses For Halloween and It's Adorable

The reality star looks amazing as per usual, as she gears up for the Halloween weekend. On the subject of Halloween, Kourtney's 3-year-old daughter Penelope is totally ready for the occasion, as her aunt Kim posted a picture this week of Penelope and North West, dressed up as adorable Frozen princesses.

MORE: Kourtney Kardashian Continues to Support Scott Disick in Rehab, Kids' Visit Was Her Idea

Meanwhile, Kourtney continues to support her ex Scott Disick as he continues treatment at a drug and alcohol rehab center in Malibu, California, though a source told ET that the two have no plans to get back together.

"The same still stands for Kourtney and Scott," a source close to Kourtney revealed. "They are still broken up and there is no chance they will get back together. Kourtney is not interested in having any discussion about that right now, nor is she thinking about dating yet."

WATCH: 6 Times Kourtney Kardashian And Her Sick Bod Totally Killed It Since Splitting With Scott Disick

Kourtney did, however, agree to have her mother Kris Jenner bring their children to visit Scott.

"It was Kourtney’s idea," the source said of the visit. "Kourtney would never want to keep the kids from their dad. That has always been her No. 1 rule. She does not want to see Scott at the moment, but she will never keep the kids away from him."

Watch the video below.