Kimberley Walsh says Cheryl Fernandez-Versini is "over the moon" she's expecting a second child.

Cheryl Fernandez-Versini and Liam Payne

Cheryl Fernandez-Versini and Liam Payne

The Girls Aloud singer - who already has two-year-old Bobby with her husband Justin Scott - has revealed her close pal's excitement about her pregnancy as Kimberley, 34, had told Cheryl, 33, she'd always planned on having children of similar ages.

Kimberley told OK! magazine: "Cheryl knew I wanted to have my children close together so she's happy that I've got another on the way. I'm sure she expected it in a way but she's still over the moon for me."

It comes days after Kimberley praised Cheryl for being wonderful with children, amid speculation that the former 'X Factor' coach could be pregnant with her first child with One Direction singer Liam Payne.

The blonde beauty said Cheryl - who struck up a relationship with Liam, 23, in December, just a few months after she split from her second husband Jean-Bernard Fernandez-Versini - will be a "brilliant mum" when she decides to have her own family.

She previously said: "She's really happy right now. And she'll be a brilliant mum. She has loads of nieces and nephews, so she's used to the madness of children."

While Cheryl and Liam have yet to comment on the pregnancy speculation, her former 'X Factor' boss, Simon Cowell seemingly added fuel to the fire in July when he said she'd make a great mother because she's a "natural" with his two-year-old son Eric.

He said at the time: "I guess that is what happens when you are with someone. Cheryl would be an amazing mum.

"I have seen her with my son Eric and other kids over the years and she is incredible. She is very good with them.

"I think she is in a good place in her life right now. I had dinner with her a couple of months ago with Liam and they were great. I saw her the other night and she was on great form. She stays in contact on phone and text and she is good. But I do think she misses working with me."