The reality stars are currently enjoying a low-key family vacation in Nantucket, including breezy beach romps, cute social media updates and plenty of time with their little ones: Mason, 6, Penelope, 4, and Reign, 19 months.
On Wednesday, Disick posted a tranquil shot of his ex – though, as fans of Keeping Up with the Kardashians have come to know, he couldn’t resist one of his signature playful jabs at Kardashian.
It’s just another wave of fun for Disick, 33, and Kardashian, 37, who were able to leave the kids home for a little adult time on Tuesday.
According to an island-goer, Disick looked dapper in a suit as he hopped into the driver’s seat of a black Rolls Royce outside the Juice Bar on Broad Street around 7:45 p.m. (Kardashian sat in the passenger seat, which featured heavily tinted windows.)
“They were barely noticeable,” the passerby told PEOPLE, adding that the only reason people spotted the two was because of the fancy car.
Disick arrived on the island on Monday, where his first order of business was getting some ice cream with the family. Cup of ice cream in hand, Disick wore a black hoodie sweatshirt as he walked down the street with son Mason, who toted a large waffle cone, while a security guard walked along with them. Later that evening, Disick and Kardashian were spotted at popular restaurant The Pearl.
Before Disick’s arrival, Kardashian and the kids headed to Straight Wharf Fish Store & Stars Ice Cream.
While vacationing on the island for more than a week, the family has also spent lots of time boating and swimming at the beach.
Over the weekend, Kourtney and friend Simon Huck partied at the Chicken Box, where they danced with the evening’s performers, the Soul Rebels, and even hopped behind the bar to mix drinks.
“It was spur of the moment,” Chicken Box owner Packy Norton told PEOPLE. “She asked me if she could make shots. Tequila. A couple people were taking pics, but not a big deal. She was nice, just hanging out.”
Keeping Up with the Kardashians airs Sundays (9 p.m. ET) on E!
• Reporting by MEGAN JOHNSON