Photos: Kate Middleton Covers Baby Bump with Bold Dress

Pregnant Duchess of Cambridge, Kate Middleton, made another public appearance since being treated for hyperemesis gravidarum, her third in a week. The 32-year-old duchess and husband Prince Williams are expecting their second child. Their son Prince George, the fourth in line to the U.K. throne, is 15 months old.

Kate was all smiles at the Action on Addiction Autumn Gala in London on Thursday. In 2012, Kate became a patron of the charity, which helps addicts and their families. 

She stepped out in a black, long sleeve, scoop neck, knee-length Temperley London Pre-Fall 2014 Emblem Flare dress, which features slashed panels over a nude slip, crochet detailing and a flared skirt.