Winnie Harlow and Kyle Kuzma were either working on their MMA ground game or packing on the PDA on vacation this week ... and we're assuming it's the latter.
Harlow posted a steamy collection of hot shots to her IG on Thursday ... where the 27-year-old model is seen straddling her 26-year-old Wizards star boyfriend while laid out on the beach somewhere in paradise.
It was clearly a great All-Star break for Kuz and Harlow -- they also enjoyed a boat ride while on the long trip .