Kaley Cuoco set the mercury rising last weekend, when she posted a topless picture of hers on Instagram. The photo showed Cuoco posing naked for the camera while hubby Ryan Sweeting stood at the back, with his hands wrapped around Cuoco's bare breast.

It is needless to say that the selfie was quite racy. Cuoco was flaunting her pixie haircut in the photo and the couple looked too much in love as they posed in what appeared to be the backyard of their Tarzana, California home, which they have recently purchased from Khloe Kardashian.

Cuoco and Sweeting love to show PDA through social media. Since the time they have married, they have been regular in updating romantic snippets from their life.

In this particular picture, Cuoco's hair looked wet and framed her face. She wore chic sunglasses and was apparently naked from the top. The "Big Bang Theory" actress captioned her picture as 'new tattoo printed bikini' - as Sweeting grabbed her from behind.

Sweeting gave a seductive gaze at the camera and it seemed that he has been learning some camera posing techniques from Cuoco. The couple has been showing the world that they really know how to have fun together. Before posing for the racy selfie, they posted a snap in which they were seen making moustaches from candy.

During the weekend, the couple was also seen taking their dogs out for a sunny stroll in Los Angeles park area. Kaley was seen dressed in printed shorts and a white singlet.

Kaley Cuoco and Ryan Sweeting got married on December 12, 2013 and they have been going strong since then. Before walking the aisle with Sweeting, Cuoco was in a whirlwind romance with "Superman" Henry Cavill. She also dated her "Big Bang Theory" co-star Johnny Galecki.

Couco and Galecki are good friends now.