Ryan Sweeting, Kaley Cuoco Ryan Sweeting, Kaley Cuoco

Big Bang Theory star Kaley Cuoco is engaged to tennis star Ryan Sweeting, Us Weekly reports.

The two have only been dating for three months and made their red carpet debut at the Emmy Awards and a pre-show party over the weekend, according to Us.

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Sweeting, 26, reportedly popped the question on Wednesday. Cuoco, 27, tweeted Wednesday: "Flying high, I could literally touch the sky with you.... "

Neither has been married before. Cuoco was previously engaged to addiction specialist Josh Resnik, but the pair called off their engagement in 2012.