Celebrity Celebrity Moms Rachel Bilson Bumps Up Her Fashion! See the Star's Best Maternity Looks Yet By Kelsey Glein Kelsey Glein Twitter Kelsey Glein is a Seattle-based writer and editor who covers all things fashion, beauty, and pop culture. She was previously the Digital Editor of InStyle and is currently a Social Media Manager at a cosmetics company. InStyle's editorial guidelines Published on July 19, 2014 @ 07:01PM Pin Share Tweet Email Photo: Bauer-Griffin/GC Images, Interstar/NPG.com Ever since Rachel Bilson debuted her baby bump in May, we haven't been able to keep our eyes off her enviable maternity style. The star first revealed her growing tummy while on vacation in Barbados with longtime boyfriend Hayden Christensen wearing a bandeau bikini—letting the world know that the couple was expecting their first child together. Since then, Bilson has come up with hit after hit of maternity looks. Forget frumpy muumuus, this petite dynamo is all about proportion. Bikini aside, some of our favorite of Bilson's looks so far? For one, while running errands in Los Angeles, the actress donned a playful black dress covered in a large red apple print and nude Tory Burch flats (above left). For another outing in the city, the star showed off her bump in an oversized linen blouse and denim shorts, which she paired with a metallic bag and pink flats (above right). Bilson is reportedly having a girl, and we're betting a keen fashion sense will run in the family! Check out more of Rachel Bilson's chic maternity style in our gallery.