Right again...I think my favorite stat for doubles is Serena and Venus are 14-0 from memory, someone can correct me if that stat is wrong
Taken straight from Google baby girl:
In singles, Serena has won more Grand Slam titles than any other tennis player in the Open Era, male or female, with 23 of them—including seven Wimbledon titles. But her doubles resume is legendary, too. She has 23 career WTA doubles titles, including 14 majors with her sister, Venus Williams—including six Wimbledons.