5 Stars Who Breastfeed in Public These celebrities are open, vocal advocates for breastfeeding By Evann Gastaldo, Newser Staff Posted Sep 20, 2014 2:33 PM CDT 11 comments Comments Gwen Stefani holds her 6-month-old son, Apollo, while watching play during the semifinals of the US Open tennis tournament Sept. 6, 2014, in New York. (AP Photo/Charles Krupa) (Newser) – Breastfeeding has gotten a big boost from these celebrities rounded up by OK! magazine, all of whom are very open and vocal advocates for the practice: Olivia Wilde posed for Glamour while breastfeeding her son in a restaurant booth. Gwen Stefani was captured in a photo breastfeeding her son Apollo in Switzerland, one of the many times she breastfed in public. And paparazzi photographed Kourtney Kardashian breastfeeding daughter Penelope while on vacation. Jason Biggs' wife Jenny Mollen once posted a picture of herself nursing her son in a public restroom. And when Maggie Gyllenhaal was caught by photographers breastfeeding on what appears to be a bench outside, even part of her nipple can be seen. Click for the complete list of 12 and all the pictures.