Kaley Cuoco has wed her fiancé, tennis player Ryan Sweeting.

The Big Bang Theory star married her boyfriend of six months in a ceremony in Southern California yesterday (December 31).

The actress posted a photograph of herself and her new husband on Instagram with the caption:  "Yep :) #thesweetings"

The picture shows the couple kissing with Cuoco wearing a pink strapless wedding dress.

Sweeting popped the question in September after they had been dating for three months.

Cuoco is best known for playing Penny in the CBS sitcom The Big Bang Theory.

Image copyright Kaley Cuoco/ Instagram