"We almost threw up," the mother of three, 36, wrote on Instagram, alongside a snap of her and Khloe flexing their guns after a high-intensity training session. "How annoying are those crooked outlet covers?!"
For her Tuesday workout, a slimmed-down Kourtney dressed in a pair of skintight black leggings and a fitness tank. Her sister Khloe, meanwhile, covered up in a light hoodie and leggings.
It appeared that Kourtney fared slightly better than Khloe during Tuesday's sweat session, with the girls having some more fun inside the studio. "Gym road kill!!! @kourtneykardash wins!!!" Khloe, 31, captioned a funny snap of her big sister flexing both muscles like a pro in front of the gym mirror. Meanwhile, Khloe is sprawled out on the floor. "Our workout was so intense, I almost threw up."
Kourtney has been on a workout kick since Us Weekly confirmed on July 6 that the reality star had dumped her longtime love after Disick was snapped partying it up in southern France with his ex-girlfriend Chloe Bartoli.
In the days post-split, Kourt shared a photo of herself, side by side with her siblings, working out in the rain. The girls later went out to dinner that night in coordinating white outfits.
After a busy weekend, the mom to Mason, 5, Penelope, 3, and Reign, 7 months, tweeted about willpower. "Ahhhh Monday workouts are always so hard!" she shared with her 15.1 million-plus followers. Later that afternoon, she shared that she was keeping busy by helping Khloe around her home.
"Just watering the plants for @khloekardashian," Kourtney wrote, alongside a photo of herself looking better-than-ever in a sexy minidress with a fringe skirt. "What are sisters for?!" She eventually rounded out her eventful day by watching "Gone Girl in bed while shopping online."
Though Kourtney is putting forward a brave face on social media, a source previously told Us that the star was very upset with her ex. "She can't believe he’d be so stupid to embarrass her," the insider told Us last week. "And be photographed all over Chloe."
Indeed, another source told Us that Disick and Bartoli "were all over each other and so blatant." The eyewitness said: "She was nuzzling her head on his shoulder, and he was stroking her arm and thighs."
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