The 42-year-old Keeping Up With The Kardashians star made her solo Instagram return just one day after it was reported the Blink-182 drummer popped the question over the weekend in Las Vegas.
Showing she's back to work mode after a life-changing trip to Sin City on Thursday, Kourtney sat in a Good American chair and teased a project for her sister Khloé's popular jean line.
She was glowing and clearly coming off of a high from her romantic getaway over the weekend with Travis.
Slipping her killer curves into a pair of button-up denim, Kourtney crossed her legs while rocking a white crop top and hiding one blinding accessory.
Posing in a series of shots, the KUWTK star made sure her left hand was visible.
Despite showcasing her bare ring finger, fans were quick to notice she was sporting a rock on the opposite hand.
Was she trying to fool everyone, or was it simply a photo illusion?
Several followers dropped diamond ring emojis in the comments, but Kourtney responded to one of her friends, and it left everyone gagging.
When singer Sabrina Claudio wrote, "Glowingggggg," the possible bride-to-be responded with a crying, smiling face with hearts, and star emoji -- indicating the rumors about the engagement, might be true.
Here's some other evidence.
After Kourtney shared several loved-up photos from her trip with Travis, members from the KUWTK star's inner circle dropped suspicious comments.
“…NOWWW I understand why ppl tie the knot in Vegas. There’s nothing like love AND a good time," her hairstylist wrote. When Travis' 15-year-old daughter Alabama got involved, all bets were off.
Sharing one their couple shots, the rocker's teen daughter said, “So happy for you guys." She also added two red hearts and on the verge of tears emojis.
Kourtney then came home to dozens of white roses from Khloé.
While she's clearly on cloud nine, her baby daddy Scott Disick isn't sweating his ex's engagement.
Lord Disick got the hell out of Los Angeles following the engagement news -- but it wasn't because he was sulking.
As Radar exclusively reported, Scott was on daddy duty and in a "gracious" and "gracious" mood for his first sighting after the news broke.