Sadie Robertson Will Be Brighton Thompson's Maid of Honor!

Sadie Robertson Will Be Brighton Thompson's Maid of Honor!

Sadie Robertson isn’t just celebrating one engagement in her family — she’s celebrating two!

Just days after the 18-year-old Duck Dynasty star and author’s cousin, Reed, popped the question to her best friend, Brighton Thompson, her sister, Rebecca also got engaged!

“MY SISTER IS GETTING MARRIED TO HER BEST FRIEND!!!! I’m so happy for you Rebecca. John Reed… good luck joining our crazy family,” she wrote on Instagram. “So excited for y’all to began y’alls journey of life together. 1.1.16.”

Sadie also said “yes” herself — to be Brighton‘s maid of honor!

“I AM HONORED TO BE MY BEST FRIENDS MAID OF HONOR!!!!!! Brighton Thompson I can not wait to stand by your side and watch you become a part of my family. You are going to be the most beautiful bride, and the most amazing wife. @officialreedrob is a lucky guy. I love you to death. I can’t wait to start the planning :-)???? (ps think about how awesome life is going to be. our kids get to be related WHOOHOOO!!) 12.31.15 @bright1thompson,” Sadie captioned.

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Posted to: Sadie Robertson