Heidi Montag debuted her fashion line, Heidiwood, Friday in Hollywood. Models hit the catwalk as music from her upcoming, as-yet-untitled pop album blared. Montag, 21, worked the runway in sky-high black stiletto platform pumps, super short black shorts and a midriff-baring zebra print halter top. ("I love zebra print!" she said. "I'm obsessed with it!") The real head-turning moment of the night? Spencer Pratt popped on stage and gave Montag two dozen long-stemmed, pink roses before kissing her on the lips.(See their 13 cheesiest moments here.) So is all well between the on-and-off Hills pair? "I mean, you know, we're up, we're down," she told reporters after the show. "It's just the routine." Though they are not living together, "the bottom line is that we love each other," Montag added. "We always have, and we're just trying to figure out our stuff like every other couple."