Big Bang Theory's Kaley Cuoco is engaged: Fans are going gaga over Karl Cook's romantic proposal

Congratulations are in order for Kaley Cuoco, who is engaged to her boyfriend of two years, Karl Cook. The special day came during the Big Bang Theory star's 32nd birthday during a surprise dinner date, and fans are going crazy over the couple's big news.

Cook shared a video of the emotional proposal on Instagram in which Cuoco has tears streaming down her face as she says, "We're engaged!" Karl responds saying, "You still haven't said yes yet," to which she responds over and over again, "Yes! I say yes! I say yes!"

He captioned the Instagram post by writing, "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 [course], she said yes!!!!!"

Fans of the couple rushed to the comments section to wish the newly engaged pair. One user wrote, "Wonderful! Thanks for sharing this clip. Congratulations!", while another gushed, "Oh my goodness, this is so great!!!! Congrats!"

"Such a genuine reaction. You can tell by this clip how madly in love she is with him. I love it. CONGRATULATIONS to you both," said another social media user.

"That's exactly how every woman should feel when someone pops the question. #beautiful #congrats #pennygetsmarried #mrandmrscook," a comment read.

Cook also shared a close-up photo of the stunning ring, which features a large, pear-shaped diamond with a diamond-studded band.

From the looks of it, Cook seems to have gone all out for the proposal, with a fancy dinner and the giant rock.

Cuoco previously gushed about the equestrian to Entertainment Tonight. She said, "He is totally the guy," and went on to reveal what makes their relationship perfect – their "love for horses".

"I think the common denominator is the horses. It just works for us. We have this special bond so, yeah, the animals. He's so real. I've never met a kinder human being, he's gentle, and he's real. I'm completely in love with him. Nothing could be better," the actress said about her man.