Courtside Love! Kendall Jenner Supports NBA Beau Blake Griffin at L.A. Clippers Game

Kendall Jenner: model, TV star, cheerleader?

Jenner and Griffin’s courtship has been heating up in recent weeks.

The stars recently stepped out for a special double date with Jenner’s sister, Kylie, and her rapper boyfriend Travis Scott at Universal Studios’ Halloween Horror Nights in Hollywood.

A source told PEOPLE that the couple “had a blast” together.

“She thinks he’s dorky and funny, but also cool and sexy — he has a certain attractive ‘swagger,’ ” another insider said of Jenner and 28-year-old Griffin. “They are seeing each other more, and Blake is doing everything in his power to make Kendall his girlfriend.”

“She’s always working and traveling and knows a full-blown relationship isn’t necessarily the best idea, but things are heating up,” the source added. “She is for sure enjoying dating him.”

Jenner was previously linked to rapper A$AP Rocky. Griffin shares two children with his former girlfriend Brynn Cameron, a former basketball player at the University of Southern California. Cameron and Griffin reportedly split over the summer.