Blake Lively knows a thing or two about a sizzling swim style. "@Sammacsai influencing me and everyone I know to be obsessed with @leftonfrieday bathing suits and workout clothes. This is not an ad," Lively, 38, wrote via her Instagram Stories on Saturday, September 6. "I've legitimately never had a better fit of either. Started by two women. Love love love." Lively wore a peach-colored bikini with her sun-kissed blonde hair in a tousled fishtail braid as she and her husband, Ryan Reynolds, enjoyed an afternoon boating on a serene-looking lake.