The former hooker, who is famed for her celebrity clients, took to Twitter to deny suggestions she needed a DNA test to confirm the identity of the baby’s father.
The Sun had claimed that the 23-year-old believed the paternity could belong to one of five possible candidates, the Mirror reported.
The 1,200 pounds-a-night vice girl, who admits sleeping with more than 100 men, gained notoriety in 2010 after bedding Rooney while his wife Coleen was pregnant with son Kai.
Her other famous conquests include football ace Mario Balotelli and reality TV dwarf Josh Bennett.
“I know who my baby’s dad is,” she tweeted.
“Its non of the people in the story. This story has been greatly exaggerated. I have no more to say on the issue,” she added.