Kourtney Kardashian has sprouted some gray hair. She was spotted on Tuesday with some gray strands peeking out beneath her jet-black locks while she went out on a girls’ get-together with her sisters Kim and Khloe.

After going through a particularly stressful year, reality star and mother of three Kourtney may be starting to show signs of stress and aging. ET Online shared a paparazzi photo of her showing some gray hair while stepping out with her sisters. The Kardashian girls have been spending a lot of time together since Kourtney’s split from Scott Disick about two weeks ago.

The sisters were out filming for “Keeping Up With the Kardashians” in Hugo’s restaurant in Los Angeles when the photo was taken. Gray hair aside, Kourtney still managed to give off a younger vibe by donning a band shirt with cut-off muscle sleeves and ripped jeans. Her sister Kim covered up her baby bump in a floor-length outfit. Khloe went the opposite direction and opted to wear a very short pair of denim shorts coupled with a tight-fitting top.

The following day, Kourtney showed no sign of the gray hair as she posted a selfie while getting ready to accompany Caitlyn Jenner to the 2015 ESPY Awards. Kourtney shared a photo of herself while she was still in a robe while getting ready for the event.

Kourtney joined Caitlyn along with her Kardashian sisters Kim, Khloe and their Jenner half-sisters Kendall and Kylie. Caitlyn’s four children from his first two marriages were also in attendance.

Kourtney also showed off her youthful exuberance by posting a workout photo with Khloe. The pair posed before a mirror and Kourtney said: “We almost threw up. How annoying are those crooked outlet covers?!”

At 36, Kourtney is the oldest among the Kardashian children. She has three children with Disick: Mason, 5, Penelope, 3 and Reign, 7 months.