How does Hilary Duff keep conversation hot with her hockey-star boyfriend Mike Comrie? Older sister Haylie Duff spilled the beans to PEOPLE Tuesday.

“I actually caught her with a copy of the Hockey for Dummies book,” Duff, 22, said at the opening of the Foley+Corinna store in West Hollywood. Big sis says she “adores” Comrie – and says it’s actually distance that makes things work between him and 20-year-old Hilary. “He lives in New York and she lives here, and they really put in a big effort to see each other.”

(source)

Related Articles: