On Wednesday, The Flight Attendant star joyfully shared that her sister Briana, who is also an actress, recently got engaged to singer Brian Logan Dales.

“Engagement of the year!!” the 37-year-old exclaimed alongside a photo set featuring several shots from the proposal and the celebratory festivities that followed.

Cuoco made sure to share a few photos with the bride-to-be, one of which included her groom as well as the Meet Cute star’s longtime love and father of her first child, Tom Pelphrey, and another of just the two sisters embracing each other.

Which Cuoco saw as an opportunity to share further elation, celebrating the couple in the comments once more, “Finallyyyyyyyyy best night ever!!!!!!!!!!!” she gushed. “Love you both so much!!!! 😭😭😭😭😭😭.”

Cuoco’s caption continued, “We love you @bricuoco @brianlogandales !! Fam for life!” before concluding with one final declaration, ” 💫 congratulations!!!!!!!”

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