'Big Bang Theory' star Kaley Cuoco engaged to equestrian Karl Cook

Jayme Deerwester | USA TODAY

Show Caption Hide Caption Kaley Cuoco is engaged to boyfriend Karl Cook Kaley Cuoco is engaged — on her 32nd birthday!

It was a very good 32nd birthday for Big Bang Theory star Kaley Cuoco, who received a marriage proposal from her boyfriend of nearly two years, equestrian Karl Cook.

According to a video posted to Cook's Instagram account Thursday night, Cuoco accidentally put the cart before the horse, shouting "We're engaged!" before she tearfully accepted the proposal.

Who knew my prior post was oracular. Well after nearly two years I finally got up the courage to ask her to marry me. This is the best night of my life and I think the video shows it is the best night for kaley as well.....of she said yes!!!!! A post shared by Karl Cook (@mrtankcook) on Nov 30, 2017 at 7:05pm PST

"Well, after nearly two years I finally got up the courage to ask her to marry me," Cook captioned the video. "This is the best night of my life and I think the video shows it is the best night for Kaley as well."

After she remembered to say yes, Cook followed that post with a shot of the ring.

I am so so so happy. Thank you @nadis_diamonds for making the greatest ring I could hope for. Absolutely brilliant. Thank you thank you A post shared by Karl Cook (@mrtankcook) on Nov 30, 2017 at 7:30pm PST

Later, he posted a clip of them dancing, post-engagement, in which he told his future wife, "The purity and grace of the moment are inexplicable, it is truly as though life were a balloon bouncing on the smoothest zephyr. Honey; all I want is to be a balloon bouncing, bobbing, and flowing through life together. You are my everything."

In life, there is nothing like dancing right after getting engaged. The purity and grace of the moment are inexplicable, it is truly as though life were a balloon bouncing on the smoothest zephyr. Honey; all I want is to be a balloon bouncing, bobbing, and flowing through life together. You are my everything @normancook A post shared by Karl Cook (@mrtankcook) on Nov 30, 2017 at 11:07pm PST

Cook, the 26-year-old son of Intuit co-founder Scott Cook is a Bay Area native and a professional equestrian who began riding when he was eight years old. His mother, Signe Ostby, runs Pomponio Ranch, the family's breeding and training facility, in San Gregorio, where Cook is coached by former French Olympian Éric Navet.

Since they began dating in 2016, Cuoco, a fellow rider and jumper, has popped up at equestrian competitions. In April, she accompanied Cook to an FEI World Cup event, marking her first-first ever visit to Nebraska, the home state of her Big Bang character Penny.

Cuoco was previously married to tennis player Ryan Sweeting, whom she married on New Year's Eve 2013 and split 21 months later.

Contributing: Associated Press