Nicole Kidman’s rep insists that the star isn’t pregnant, but Keith Urban fans are saying that lyrics on his new album suggest that he’s expecting to have two children.

Urban wrote the romantic tune, “Once In A Lifetime,” in which he apparently croons to his bride Kidman and sings of their children.

“I close my eyes and I see you standing there saying, ‘I do’ and they’re throwing rice in our hair,” he sings, then turns his attention to their kiddies: “Well, the first one’s born then a brother comes along/And he’s got your smile.”

“The lyrics are already fueling speculation that Kidman’s growing bump is more than just weight gain,” reports The Star, which quotes a “friend” of Kidman as saying, “Nicole is keeping her lips zipped about whether she’s pregnant or not, but if you ask her about Keith writing that they’re going to have two kids, she just says, ‘That would be lovely.’”

Kidman’s rep last week told The Scoop that the actress is not expecting and that she believes photos of Kidman looking pregnant are digitally altered.