Julianna Margulies on +The Good Wife has got to be the best example of office sexy. The dresses and blazers they style her in always have elegant neck lines that really compliment her figure. I mean it can't be hard to make Julianna gorgeous when she looks like she does. Girl could work a brown sack.
They also have a lot of pregnant characters. Martha Plimpton looked amazing in her pregnancy wardrobe. I love the scene when Will walks in on her expressing. Hilarious. More recently, Melissa George is on the show and I really look forward to seeing how they style her bump every week.