Kaley Cuoco gave fiancé Ryan Sweeting a big kiss at the Fourth-Annual Veuve Clicquot Polo Classic in L.A. on Saturday, Oct. 5 Credit: Charley Gallay/Getty Images for Veuve Clicquot

Practicing their wedding kiss! Kaley Cuoco couldn't hide her affection for her new fiance Ryan Sweeting as the couple attended the 2013 Veuve Clicquot Polo Classic event at Will Rogers State Historic Park in L.A. on Saturday, Oct. 5. The Big Bang Theory actress went in for a smooch on the cheek as her tennis player beau smiled for the cameras.

Cuoco, 27, and Sweeting, 26, have been showing some adorable PDA since Us Weekly exclusively broke news that the the pair got engaged in late September after a three-month courtship. The newly engaged couple were previously spotted holding hands when Sweeting visited the Bang actress on set on Oct. 2.

"I'm excited, on top of the world, we're so happy!" the blonde beauty told reporters on the red carpet at the Polo event. But despite the speedy engagement, the pair are in no rush to the altar. "We are too busy to wedding plan," she added. "In a year we will start talking about it. We are enjoying being engaged."

One week earlier, Cuoco acknowledged that their quickie engagement "seems a little crazy on paper, but it's what works for us," the blushing bride-to-be told Entertainment Tonight. "From day one I just knew immediately and it's been magic. We have all the same family friends. We grew up with the same people, we just never met. So I kind of feel that I've known him my whole life."