Gay pop legend Elton John and his partner David Furnish are reportedly looking to get their son Zachary a brother or a sister.

According to The Sun, people close to the couple said they will be using the same surrogate mother who gave birth to their son.

“Elton and David love this lady like a sister and they feel indebted to her for life,” a source told The Sun. “Naturally she has been well rewarded. But her identity will never be revealed.”

The couple also is said to have bought a new home in Los Angeles for the new baby.

Last June, John told The Guardian he didn’t want Zachary to grow up an only child.

“I think it’s difficult to be an only child, and to be an only child of someone famous,” he said.

“I want him to have a sibling so he has someone to be with. I know when he goes to school there's going to be an awful lot of pressure, and I know he's going to have people saying, 'You don't have a mummy.

“It's going to happen. We talked about it before we had him. I want someone to be at his side and back him up. We shall see.”

John’s agent declined to comment.