"Big Bang Theory" actress, Kaley Cuoco, has shared adorable snaps on Instagram of her holiday with boyfriend, Karl Cook. According to US Weekly, Cuoco joined Cook and his family for a vacation in Australia towards the end July and into the start of August. The star and her beau posted pictures of them on both of their Instagram accounts.

Cuoco shared a photograph of herself and Cook having fun on Wednesday, August 2 with Cook sporting a cowboy hat and Cuoco wrapping a feather boa around the couple. The actress thanked Cook's family in the caption, joking that the pair didn't have any fun on the trip.

Cook posted a picture to his Instagram feed on Tuesday, August 1 showing the couple hiking with a group. He told viewers that he was on a 6-mile hike over loose rocks with "the love of [his] life."

Other photos shared of the pair's trip show them having dinner with Cook's parents, Kaley hanging out with Cook's sister Annie, and the Cook family and Cuoco doing various activities together. Cuoco shared a snap on July 31 telling Cook that he lights up her life.

Kaley Cuoco splits from husband Ryan Sweeting

Kaley Cuoco was previously married to the tennis player, Ryan Sweeting. According to the Daily Mail, the two got married in 2013 having only dated for 6 months prior to the wedding. Sweeting has a history of drug abuse and addiction, although it was reported he was sober when the couple got married.

After a surgery on his back in 2014, Sweeting allegedly became addicted to painkillers.

Although the pair split up in September 2015, Cuoco and Sweeting's divorce wasn't finalized until early May 2016. A source reportedly told the Daily Mail that Cuoco supported Sweeting, but he couldn't commit to getting sober, and she found the tennis pro's ups and downs too difficult to deal with.

They added that the couple had been unhappy in their marriage for some time, despite the fact that all public appearances and social media postings suggested otherwise.

What do we know about Karl Cook?

The actress began dating 26-year-old Equestrian, Karl Cook, in March 2016. The couple reportedly met a horse show. Cook's family are horse-mad, with Karl winning the blue ribbon in the $25,000 SmartPak Grand Prix and the $15,000 UltrOz Jumper in 2016.

Cook's mother, Sidney Ostby, is also a rider, as is his sister Annie Laurie. The family owns a share of horses, some of which Karl rides on for competitions and others which are well sought after in the world of breeding. Cook revealed in an interview in 2010 with Phelps Sports that he also enjoys photography.