Rachel McAdams stuns with breast pump shot featured in magazine spread

Rachel McAdams gave birth to her son in April. Photo / Getty Images

New mother Rachel McAdams has posed with breast pumps in a stunning photoshoot for US magazine Girls Girls Girls.

The Mean Girls star was photographed using the pumps in between takes of the fashion spread, with a photo of the candid moment making it into the magazine's latest issue.

In an Instagram post Girls Girls Girls founder Claire Rothstein explained the shoot had taken place just six months after McAdams gave birth.

Because Adams was still breastfeeding and expressing milk the star needed to pump in between shots.

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A million reasons why I wanted to post this picture. Obviously #rachelmcadams looks incredible and was quite literally the dream to work with but also this shoot was about 6 months post her giving birth to her son, so between shots she was expressing/pumping as still breastfeeding. We had a mutual appreciation disagreement about whose idea it was to take this picture but I’m still sure it was hers which makes me love her even more. Breastfeeding is the most normal thing in the world and I can’t for the life of me imagine why or how it is ever frowned upon or scared of. I don’t even think it needs explaining but just wanted to put this out there, as if it even changes one person’s perception of something so natural, so normal, so amazing then that’s great. Besides she’s wearing Versace and @bulgariofficial diamonds and is just fucking major. Big shout out to all the girls 💪🏽 #rachelmcadams for @girls.girls.girls.magazine .com cover shoot 📸 @clairerothstein #pleaseshare . . . Side note: I did not look anywhere near as fabulous as this when feeding/pumping. And that’s ok too. . . . Stylist: @alicialombardini 👠 #girlsgirlsgirlsmag #girlsgirlsgirls #bringingbackthewoman #nogrungejustglamour #independentmagazine #printisnotdead #normalisebreastfeeding #normalizebreastfeeding #breastfeeding #life #women #versace #bulgari

A post shared by Claire Rothstein Photographer (@clairerothstein) on Dec 18, 2018 at 1:11am PST

According to Rothstein, it was McAdams' idea to take a photo of her with the breast pumps, something which "makes me love her even more".

"Breastfeeding is the most normal thing in the world, like breathing and I can't for the life of me imagine why or how it is ever frowned upon or scared of," Rothstein wrote.

"I don't even think it needs explaining but just wanted to put this out there, as if it even changes one person's perception of something so natural, so normal, so amazing then that's great.

Rachel McAdams (left) played Regina George in iconic film Mean Girls (2004). Photo / Getty Images

"Besides she's wearing Versace and Bulgari diamonds and is just f**king major."

McAdams' candid shot was widely praised on social media, with fans unable to resist referencing her famous Mean Girls character.

"I saw Regina George wearing Versace and a breast pump, so I'm wearing Versace and a breast pump," one person wrote on Facebook.

"On Wednesdays, we wear breast pumps," another commented.

In April, McAdams and boyfriend Jamie Linden welcomed a son but are yet to release his name.