Venus and Serena Williams (Julian Finney/Getty)

Following Serena Williams' celebratory dance after winning the women's singles gold medal on Saturday, Serena and sister Venus also won the women's doubles competition on Sunday, besting the Czech Republic's duo. CBS reports the win has made Serena the first 2012 Olympian to win gold in both the singles and doubles tournaments, an achievement also garnered by Venus during the 2000 Olympics in Sydney.

The American sisters beat Andrea Hlavackova and Lucie Hradecka of the Czech Republic 6-4, 6-4 under the roof on a rainy afternoon at the All England Club. Venus closed out the match with a backhand volley winner after the Czechs saved a pair of match points.

On Saturday, Serena beat Maria Sharapova 6-0, 6-1 for the singles gold. She joined Steffi Graf as the only women to complete the Golden Slam — winning the Olympics and the four majors.

Read more at CBS.