Nicky Hilton Rothschildis congratulating her big sister on an exciting new milestone.

“Welcome to mommyhood @ParisHilton! 👶🍼🧸 So so incredibly happy for youuu! 🥰,” she began the caption to the photo, where Nicky wears a blue striped dress as she sits between her mom and sister, while Paris is in pink.

Nicky Hilton/instagram, MediaPunch/Bauer-Griffin/GC Images

Nicky Hilton Congratulates Sister Paris Hilton

“It’s the most beautiful ride. There is no greater love. You are going to be the best mommy. What a lucky boy! 💙”

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Also congratulating Paris on her growing family is sister-in-lawTessa Hilton— wife of Paris’s little brotherBarron Hilton— who shared thebirth announcementon her Instagram Story and wrote, “We love you❣️Congratulations,” tagging the couple.

Tessa and Barron’s family has also grown this year, with the couple welcoming sonCaspianin September, joining daughterMilou Alizée, 2½.

Paris has gotten in some parenting practice with her sister’s little ones,joining them on a Disneyland tripjust last month to celebrate nieceTheodora “Teddy” Marilyn’s fifth birthday.

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Paris Hilton

Paris posed with Nicky and her girls — Teddy and oldest daughterLily-Grace Victoria, 6 — as they met and took pictures with Disney princesses and rode the tea cups as a family.

Though Nicky’s husband, James Rothschild, was pictured in a few shots, the youngest Rothschild, the couple’s 6-month-old son whose name has yet to be shared, was absent from photos of the outing.

source: people.com