And when we say late night, we mean into the wee hours of Friday morning!

Khloe Kardashian, 30, and former NBA star Rick Fox, 45, met up at Casa Vega in Studio City around 11:45pm on Thursday evening, and the duo and stayed until 1:30 a.m. When our X17 photographers asked Rick if he's dating the sexy reality starlet, he replied, "Khloe's a good friend," but that seems rather late for a platonic catch up session.

Not only is Rick a tall baller (just like Khloe likes!), but they're both single, and she was dressed to impress in skintight pants and heels. Our X17 photographers on the scene tell X17online exclusively, "Khloe and Rick were DEFINITELY on a date. We haven't seen her with French [Montana] in a while and she was very flirty with Rick before the two got in their cars and went their separate ways."

Rick was last linked to AnnaLynne McCord back in February and he was previously with actress Eliza Dushku for several years. Rick was married to Vanessa Williams from 1999–2005, so he's definitely got a thing for babes in the biz! We'll be watching these two...