For Olivia Wilde, having a child was life-changing.

It also changed the way she views herself, which is why she agreed to be photographed breastfeeding her son, Otis.

“Being shot with Otis is so perfect because any portrait of me right now isn’t complete without my identity as a mother being a part of that," she told Glamour magazine. "Breastfeeding is the most natural thing. I don’t know, now it feels like Otis should always be on my breast. It felt like we were capturing that multifaceted woman we’ve been discussing—that we know we can be. You can be someone who is at once maternal and professional and sexy and self-possessed. " 

However, she admitted she doesn't usually look this glam doing it. "And there's usually a diaper involved!" she quipped.

Wilde, 30, and her fiancé, Jason Sudeikis, 38, welcomed Otis in April. Their new responsibilities as parents, as well as various career opportunities (Wilde is now working on an HBO project with Martin Scorcese while Sudeikis is gearing up to promote his upcoming film, "Horrible Bosses 2"), have caused them to put wedding planning on hold.

"In many ways, a child is more of a commitment. We are fully committed and really happy as a family. And there’s no definition of the ‘normal family’ anymore," she said. "Kids today are growing up with so many different definitions of family. I guess what I’m saying is that I don’t feel any pressure to do it. But I think it will be really fun."