Rapper turned actor Common, who is dating Serena Williams, has been on a publicity tour to promote his movie "Just Wright."

His relationship with Williams has been a frequent talking point. In an interview on Ellen, he said, "Actually, Serena and I have been close for about two years. It's been evolving.

"I definitely want to get married. I would love to get married and have kids."

Common, 38, also described his experiences watching Williams' matches. "I sit there, and I'm just tense," he said. "...people try and talk to me, and I tell them to be quiet. I was sitting next to Richard Branson and I didn't pay attention."

Speaking to AP, he said had tried to play tennis with Williams: "I hit with her a couple of times but it’s kind of tough... having an athletic mind-state [and...] not being able to defeat your companion."

Common plays a basketball player in the movie and was asked if he had received any insight from Williams on portraying an athlete in the film. "One thing I gotta say is that athletes, they play through the pain. I’ve seen the pain that not only Serena or Venus would go through, but other the athletes that I know."