Kristin Cavallari Pumps Breast Milk in Her Bikini: See the Pic!

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Kristin Cavallari takes her mommy duties seriously.

The 29-year-old took to Instagram this week to post a photo of herself poolside in a striped bikini holding up her breast pump.

“Thank you @inspirato for this gorgeous view while I pump #DutyCalls #Inspirato,” she captioned the fun pic while vacationing.

MORE: EXCLUSIVE: Kristin Cavallari Posts ‘Glamorous’ Breast Pumping Pic, Says She Can’t Wait to Get Rid of It

Inspirato resorts have locations all over the world, but the shoe designer’s locale seems extra sunny this time of year. The mother of three already looked nicely tanned.

This isn’t the first time The Hills alum has posted a photo of herself pumping.

In March the Balancing in Heels author Instagrammed a shot of herself dolled up while pumping milk, writing, “The glamorous side of the #BalancinginHeels #BookTour.”

MORE: EXCLUSIVE: Kristin Cavallari Talks Working on Marrigae With Jay Cutler: ‘We Don’t Have a Perfect Relationship’

Cavallari recently opened up to ET about her maternal duties and taking care of her baby daughter, Saylor.

"I'm done having kids," she told ET. "I got my girl, I'm good. We did it quick… I'm looking forward to giving away my maternity stuff and breast pump. My girlfriends are all getting pregnant now."