It’s a happy birthday to low-profile hottie Christine Lakin, who turns 29 today. In regular rotation as a TV guest star, Lakin has had small parts in Georgia Rule, The Game Plan and a few other flicks, but I suppose remains best known from her seven-year run on ABC’s Step by Step. She’s got a plum part, though (relatively speaking), in the forthcoming The Hottie & The Nottie, opposite Paris Hilton; Lakin plays the (really) ugly girl best friend of Hilton’s character — the ugly duckling who undergoes the transformation into the swan. It’s not a great flick by any stretch of the imagination, but Lakin has one really good and emotionally earned scene in particular. No one told her the movie was supposed to be small-fries, apparently.