Happy Birthday, Grandma Roloff! Tori Roloff took to Instagram to share a sweet message to her mother-in-law Amy Roloff and her sister-in-law Molly Roloff. She was the first member of the Little People, Big World cast to celebrate their special days.

First, Tori shared a photo of Amy holding her four-month-old grandson Jackson and added, “Happy birthday mama Roloff.” Next, Tori shared a photo of her with Molly, calling Molly her “seestor” and also wishing her a happy birthday.

tori roloff amy roloff molly roloff birthday instagram

(Photo Credit: Instagram)

Molly is Amy’s only daughter, as she shares four kids — twin sons Jeremy and Zach Roloff, daughter Molly, and son Jacob with her ex-husband Matt Roloff. Molly got married to her fiancé Joel Silvius last month, and when Amy announced her daughter’s engagement last December, she gushed over her baby girl in the caption. She even said that Molly was her “best birthday gift ever” since the mommy-daughter duo shares the same birthdate.

Amy kicked off her birthday celebrations early by going out to dinner with a handful of her pals over the weekend, and she wrote,”Had a wonderful fun pre-celebration birthday dinner with my girlfriends. No better gift then friendships. I’m blessed by these fantastic women. Thank you for hanging out [with] me” in the caption, adding the hashtag “#ItsBeenAGoodYear.”

And it has been a good year for Amy! Not only did she celebrate her daughter’s wedding, she also went more public with her relationship with her boyfriend Chris Marek, and she welcomed two grandchildren. Zach and his wife Tori’s son Jackson was born back in May and Jeremy and Audrey’s daughter Ember was born just last week. The doting grandma took to Instagram to announce the newest addition to her family.

“And my baby granddaughter is here. I’m so so excited and happy for Jeremy and Audrey. I’m a grandma again. Ember Jean is beautiful. What a blessing. My heart is full of joy!!” she wrote.