"Sister Wives" Celebrations
It was a busy month for the Brown family. The "Sister Wives" stars celebrated several birthdays, an anniversary and the arrival of a new family member. TLC/Raquel Werner

Happy birthday, Kody Brown! This week, the “Sister Wives” star turned another year older. And in honor of his big day, Kody’s wives took to Twitter to celebrate the 48th birthday of the plural family's patriarch.

“Happy Birthday @realkodybrown,” Christine, Kody’s third sister wife, wrote in a tweet. “I love being married to you and sharing our incredible life story with you.”

Meri and Janelle, Kody’s first and second sister wives, also shared a sweet tribute to the man they spiritually married via Twitter.

“Happy birthday @realkodybrown! Wishing you peace, happiness & love in abundance!” Meri wrote to her husband of 26 years.

It’s been an exciting month for the Brown family. In addition to honoring Kody’s birthday, the family also celebrated Meri’s day of birth.

“Happy birthday @MeriBrown1,” Robyn wrote on Twitter. “I feel so blessed to have you in my life!””

In addition, Janelle and Kody celebrated their 23rd wedding anniversary on Jan. 17, which was acknowledged by Meri in a tweet. The couple, who have six children together, exchanged vows during their spiritual wedding in 1993.

But milestones weren’t the only events acknowledged during the month of January; Kody also welcomed the arrival of his 18th child into the Brown brood on Jan. 10.

“We are happy and blessed to welcome the newest addition to the Brown family,” Robyn and Kody said in a statement to People magazine, confirming the birth of their daughter Ariella Mae. Robyn’s fifth child weighed in at 9 lbs. and 9 oz. after arriving two days later than Robyn's original due date.

"'Baby Sister' is already opening her eyes and seems to love listening to all the voices of her big family talk around her," Robyn said, adding that it was “such a beautiful moment” to have the entire Brown clan meet the family’s newest, smallest member.

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