Killed it: Kaley Cuoco on first X-mas with fiance

Actress Kaley Cuoco and her fiance tennis player Ryan Sweeting spent their first Christmas together and the former says they "killed it".

The 28-year-old posted a photograph on Instagram with the caption "First Christmas together! Killed it!" reports people.com.

The couple, who got engaged in September, after dating for a few months, will reportedly get married on New Year's eve.