Julianne Hough Parties in Cabo With Her Gorgeous Mom and Sisters -- See the Pics!

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Julianne Hough turned her recent vacation into a family affair.

The 27-year-old actress/dancer took her mother, Mari Anne Hough, and her three older sisters -- Marabeth, Katherine, and Sharee -- to Cabo San Lucas, Mexico, where the genetically-blessed gals had plenty of fun in the sun.

"Sissy and momma bonding time!!!!" Hough Instagrammed in the car.

WATCH: EXCLUSIVE -- Julianne Hough Talks Snapping Sexy Pics in 'Grease: Live' Costume to Send to Fiance Brooks Laich

Activities included some not-so-serious yoga, epic photobombing, and making an adorable Hough dog pile.

... And there's that one time they rode a horse on the beach.

But how cute is mama Hough's laugh?!

Unfortunately, their ride on a private yacht became too much for at least one sister -- Katherine -- who threw up on the side of the boat while Julianne snapped pictures of her.

Thankfully, she appeared to have recovered quickly to resume the Houghs' epic vacation, partying with her ridiculously good-looking family.

WATCH: Why Julianne Hough Says She's the 'Worst Bride Ever'

Last month, ET caught up with the fifth Hough sibling, Derek Hough, when the 30-year-old dancer talked about his little sister's decision to not return to Dancing With the Starsas a judge. Earlier this month, we also learned Derek won't be returning for DWTSseason 22.

"I think she did three great seasons, and it's time for her to go," Derek told ET about Julianne at the Vanity Fair and the FIAT Brand's Young Hollywood celebration. "She's got great things on the horizon, and she's doing great things. Len [Goodman]'s coming back, and so, you know, I think four judges feels a little redundant anyways, so I think it's the right thing to do."

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