Pregnant Kourtney Kardashian Flashes Baby Bump in Tiny Green Bikini

Now that word is out about Kourtney Kardashian's pregnancy, the bump is on full display for her social media followers.

The 44-year-old reality star—who officially spilled the beans about the exciting family update last week—is now soaking up every moment of pregnancy bliss as she expects her fourth child, her first with husband Travis Barker.

In the idyllic new shots shared to Instagram on Friday, June 23, Kardashian showed off her growing baby bump while enjoying a sunny day spent poolside with her kids.

Scantily clad in nothing but a light green string bikini, the Kardashians star posed for a full-length mirror selfie in one of the pics, giving her fans a glimpse at her bare tummy as she expects to become a mother of four.

"sweet summer ????????" she captioned the set of dreamy shots.

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One of the picturesque slides featured her 10-year-old daughter Penelope enjoying the water in a pool float, while another snap featured her younger son, Reign, age 8, tossing around a beach ball with his big sister. Kardashian's firstborn son Mason, 13, didn't appear to be in the photos.

Kardashian, who shares her current three kids with ex-partner Scott Disick, announced the news of her pregnancy last week by showing up to the Blink-182 drummer's concert in L.A., holding up a sign from the crowd that read, "Travis I'm Pregnant."

She posted the sweet moment on Instagram afterward, along with a set of intimate photos with Barker, 47, to officially debut her bump online, sharing that she was "Overwhelmed with gratitude and joy for God’s blessing and plan."

Next: Kim Kardashian Celebrates Sister Kourtney's Pregnancy Following Feud