The pair certainly hasn't been shy when it comes to pouring on the PDA, and their latest sighting is pretty adorable. Khloe, 32, and Tristan, 25, happily smiled for cameras at LIV Fontainebleau nightclub in Miami, Florida, on Sunday night, looking more cozy with one another than ever.
Khloe flaunted her curves in a skintight black-and-gold minidress and sweetly linked arms with Tristan, who affectionately placed his right hand on her knee.
ET spoke with Khloe's mom, Kris Jenner, just last Friday, and she gave the Canadian athlete her stamp of approval.
"I have [met Tristan], he's a wonderful guy," Kris exclusively told ET at the annual Brent Shapiro Foundation for Alcohol and Drug Prevention summer spectacular in Beverly Hills, California. "I have met him and he's great."
"[Khloe] is a delicious girl," she added. "Yeah, I just want her to be happy. Having a good time."
By the looks of it, the attractive duo is definitely enjoying one another's company. The two recently shared a steamy kiss in Miami -- and looked lost in their own little world -- which their friend documented on Snapchat.
Khloe and the Cleveland Cavaliers star have been linked together as early as Labor Day weekend, when they were spotted on a beach getaway in Cabo San Lucas, Mexico.