Guynes, who is estranged from Moore's half-brother Morgan, claims the actress is helping her ex gain custody of their 6-year-old twins--because she is desperate for young children of her own.
Guynes, who is seeking full custody of sons, Cooper and Oliver, as part of a messy divorce battle with Morgan, tells tabloid Star she believes 44-year-old Moore, who has three teenage daughters, is contributing to her estranged husband's legal fees, so she can help him raise his kids in Los Angeles.
Lesley, who wants the twins to stay with her in Georgia, says, "I think Demi is getting too old to have kids of her own.
"I think there is some kind of codependency. Demi has been bankrolling Morgan so that she can stay involved with all his offspring and keep all of her little flock close. She's a piece of work."
Guynes' claims are part of a four-page exclusive in the new issue of Star, which features family photographs of Moore with her sons.
The actress' representatives have dismissed Guynes' argument that the actress is trying to make any claim on the boys.
COPYRIGHT 2007 WORLD ENTERTAINMENT NEWS NETWORK LTD. All Global Rights Reserved.