Kaley Cuoco, Fiance Ryan Sweeting Step Out Holding Hands for First Time Since Engagement: Picture by Nivel

Kaley Cuoco is showing off her man! The Big Bang Theory actress and her new fiance Ryan Sweeting stepped out in Sherman Oaks, Calif., just two days after Us Weekly exclusively broke news that the two are engaged.

Cuoco, 27, and her tennis player hunk, 26, were spotted holding hands while grabbing lunch at Marmalade Cafe in Sherman Oaks, Calif., on Saturday, Sept. 28. Dressed casually with both wearing their shades, the blonde beauty rocked her gorgeous engagement ring during the outing.

"It's only been three months but she knows Ryan is the one," a source close to the actress told Us earlier this week. "When you know, you know."

Another source added: "[She's] never felt this way. She knows this is it.

The adorable couple took the next step just days after making their first official red carpet appearance as a couple at a pre-Emmys bash as well as the Emmy Awards show itself in L.A. As for the Big Bang star, she's clearly smitten with her future hubby. "Flying high, I could literally touch the sky with you…" she tweeted shortly after the proposal.