Helio's Sister: No Romance With Julianne

With rumors flying around that Dancing With the Stars champ Helio Castroneves is romantically involved with his dance partner on the show, 19-year-old beauty Julianne Hough, the race car driver's sister spoke to OK! to set the record straight.

“It’s not true,” Kati Castroneves tells OK! about the romance rumors. However, Kati does say Julianne became one of the family while guiding Helio, 32, to the championship of the hit ABC reality show. “We all got close to Julianne,” she says. “I call her Ju Ju. I have no sisters, so she’s like my little sister now. In my family, we stay friends with people forever.”