Pregnant Olivia Culpo's Sister Sophia Jokingly Calls Out the Model for How She Hid Her Pregnancy: 'She Ain't Stealth'

Olivia Culpo's sister is revealing all of her pregnancy-hiding secrets.

Shortly after the model, 32, and her husband Christian McCaffrey announced the exciting news that they are expecting their first baby together, Culpo's little sister Sophia Culpo took to her Instagram Stories to expose her sister's pregnancy hiding tactics.

"Now you all know why her nickname is Oblivia... she ain't stealth 😂 😂 " she jokingly wrote under a picture she reposted from her sister's Instagram page.

Sophia continued poking fun at Olivia, sharing a text exchange between the two of them, where she called her out for her poorly concealed baby bump, joking Olivia would say, "I'm just bloated."

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Related: Olivia Culpo Is Pregnant! Actress and Christian McCaffrey Expecting First Baby

Olivia and the San Francisco 49ers running back, 28, announced that they are expecting their first baby together on Monday, March 10, sharing the news with two posts on Instagram. In the first, Olivia could be seen wearing a flowy dress, kneeling as she placed a hand under her belly. She also posted an image with her turned towards the camera, as she placed a hand on her hip.

"Next chapter, motherhood 🤍," Olivia wrote alongside black-and-white photos from her maternity shoot.

The couple then shared a video, set to "Bloom" by The Paper Kites, with behind-the-scenes moments from their maternity photoshoots. In the video, the duo walk through the grass, with Olivia wearing a white flowy dress and McCaffrey donning black jeans and a beige crew neck.

Several months before her viral wedding in 2024, the Miss Universe winner shared her desire to "start trying immediately" for children as soon as she married the NFL star.

With the June wedding behind them, Olivia's little sister, Sophia, and older sister, Aurora — who has two kids of her own — told PEOPLE exclusively in October how they were already witnessing the newlywed adjust her life in anticipation of parenthood.

Aurora noted that as Olivia moved homes, she decorated with a bit more regard for the unpredictable. "Already, I can see that her house is no longer all white and beige," Aurora quipped. "I'm like, 'You're realizing this might not work for your future.' "

Sophia agreed, describing her sister as a "through and through perfectionist," something "you can't be with kids."

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