Kaley Cuoco
Kaley Cuoco is still on board to reprise her role as Penny for more seasons of “The Big Bang Theory.” Pictured: Cuoco poses backstage with her award for Favorite Comedic TV Actress during the 2015 People's Choice Awards in Los Angeles, Calif., on Jan. 7, 2015. Reuters/Danny Moloshok

“Big Bang Theory” star Kaley Cuoco was feeling cheeky on Wednesday when she revealed her chest while playing around with her friend’s Snapchat.

The actress had been trying out different Snapchat filters and voice modifications on stylist Brad Goreski’s phone, including one with adorable fox ears. In one photo, Goreski sported the creepy grandpa filter, complete with round-frame glasses and a checkered hat, while pointing at Cuoco’s breast, which she exposed by unbuttoning her white shirt, according to Entertainment Tonight. But don’t worry, the actress’ assets were covered with a giant heart emoji.

Cuoco, who does not have a public Snapchat account, also shared a video on her own Instagram account, showing her hanging out with boyfriend Karl Cook, Goreski and other friends. “Killing the game today #squadgoals,” she captioned the clip, which showed her sitting on Cook’s lap and pressing several kisses on his cheek.

Cuoco has been showing a lot of love for her equestrian boyfriend on social media lately. Last week, she shared a sweet photo of them kissing on Instagram, which she captioned, “I miss this face already.”

Meanwhile, Cuoco is busy filming the upcoming season of “The Big Bang Theory” with co-stars Johnny Galecki, Jim Parsons, Simon Helberg, Mayim Bialik, Kunal Nayyar and Melissa Rauch. It was announced in July that Katey Segal, who played Cuoco’s character’s mother in “8 Simple Rules,” has been also cast as her mom in the CBS series. Cuoco, of course, immediately took to social media to share how excited she is to be working with Segal again.

“Yes yes yes yes !!! Once my tv mom, always my tv mom love you @kateylous !!!!! #fullcircle @thebigbangtheory__,” Cuoco captioned an Instagram pic with Segal.

Catch Cuoco and the rest of the cast when “The Big Bang Theory” Season 10 returns with brand new episodes on Monday, Sept. 19 on CBS.