(UPI) -- Maksim Chmerkovskiy openly discussed his mysterious relationship with Kate Upton for the first time at the Valentin Clothing launch in Beverly Hills on Thursday.
"She's an amazing person," Chmerkovskiy, 33, told Us Weekly of the 21-year-old model. "We have an incredible time together, and, you know, I definitely didn’t see that coming and I think neither did she."