Stephanie Pratt walked the runway Thursday night in LA for a charity event called Celebrity Catwalk. Earlier this week she sat down with MTV to promote the upcoming season of The Hills. It will apparently have a storyline about Heidi and Spencer discussing parenthood and Stephanie confirmed this in her interview saying Heidi has "baby fever." The couple recently hammed it up at Kitson Kids but from the looks of Heidi's bikini body it doesn't seem like a mini-Pratt is on the way just yet. Still — do you believe Stephanie when she says her sister-in-law has baby fever?