London, May 29 (IANS) Australian actress Nicole Kidman sparked pregnancy rumours after she was seen with husband Keith Urban with what appeared to be a slight baby bump.

The Oscar-winning actress, who gave birth to daughter Sunday Rose last July, is believed to be expecting another child with rocker Urban after she was pictured with a baby bump, reports contactmusic.com.

'Nicole looked glowing and was a far cry from her usual skinny self. She was wearing a silky red dress which failed to hide her expanding stomach,' said an onlooker.

Even the 41-year-old's friends said she was keen to expand her brood.

'Nicole grew up in a happy family home with her sister and she would very much like to emulate that with her own family. She's been saying how she doesn't want to wait around, so another baby could soon be on the way,' said a friend close to the actress.