After a three-month courtship, The Big Bang Theory star Kaley Cuoco is engaged to Ryan Sweeting, her reps confirmed to Us Weekly. The 26-year-old tennis player popped the question on Wednesday, a mere three days after the couple made their first red carpet appearance at the 2013 Primetime Emmy Awards in Los Angeles. Kaley and Ryan began dating earlier this summer and have been inseparable since. A source told the mag, “It’s only been three months but she knows Ryan is the one. When you know, you know.” On the night of the Emmys, Kaley posted a photo to her Twitter and Instagram account, writing “#emmyweekend greatest date ever @ryansweething.” On Wednesday, Kaley was spotted sporting a large diamond ring when she arrived on the set of her film, The Wedding Ringer.