Karl Cook, Kaley Cuoco
Karl Cook and Kaley Cuoco’s relationship is still going strong. Pictured: Cook and Cuoco attend The 73rd Annual Golden Globe Awards Post-Party at The Beverly Hilton Hotel on Jan. 8, 2017 in Beverly Hills, California. Getty Images/John Sciulli

Kaley Cuoco recently shared how much she misses her boyfriend, Karl Cook.

On her Instagram account, the actress posted a sweet photo of herself being kissed by Cook. In her caption for the snap, the “Big Bang Theory” actress said that she misses Cook “every single time.” Even though the couple regularly spend time with each other, Cuoco still misses her boyfriend when they are apart.

On Monday, Cuoco posted a photo from the set of the hit CBS sitcom which confirms that production for “Big Bang Theory” Season 11 has officially commenced. Last week, the actress, who plays the role of Penny, also uploaded a photo of her pink script prior to their first table read for Season 11, episode 1.

Meanwhile, “Big Bang Theory” Season 11 may feature a proposal storyline similar to Penny and Leonard’s (Johnny Galecki). In the past couple of seasons, Leonard proposed to Penny a few times before he finally received a yes. The couple tied the knot in Season 10, and they dealt with their new living arrangement throughout the entire season.

According to showrunner Steve Molaro, Sheldon (Jim Parsons) and Amy (Mayim Bialik) may experience something similar in Season 11. Sheldon proposed to Amy at the end of Season 10, but he’s still waiting for her response. Even though it seems obvious that Amy will say “yes” to Sheldon, her answer may change when she finds out that Sheldon kissed Ramona (Riki Lindhome).

While speaking with The Hollywood Reporter, Molaro acknowledged all of the possibilities if Amy agrees to marry her boyfriend. “We haven’t thought it about it long-term but if and when we get to that point, it does open a lot of fun possibilities – like family members. We’ve seen how Amy behaves herself as a maid of honor so who knows what’s in store,” he said.

Molaro added that if it ever comes to a point where Sheldon and Amy will tie the knot, he’s confident Penny, Leonard and their other friends will be very happy for the couple.

“Big Bang Theory” Season 11 premieres on CBS on Sept. 25 at 8 p.m. EDT.