"The first thing Usher said was, 'How did this happen?' - because he was gone a lot, and their sex life was very, very limited," a friend of Usher told the tabloid. "People have been telling him that around the time the little boy was conceived, Tameka got together with another man."

Tameka, however, claims Naviyd is Usher's child and says it was the singer who was being unfaithful at the time.

"She says that although they weren't spending much time together, they did get together for one night of passion. And that's when she got pregnant," the source said.

Meanwhile, E! is reporting that Tameka's new court filing states she and Ursh have not been separated since July 2008 and, in fact, were "intimately together" less than a week before he started divorce proceedings.

She had "every reason to believe her marriage was intact," her attorney stated in documents filed Monday in Atlanta.

Tameka's filing seeks to ensure that her estranged husband takes care of all of her legal fees pertaining to the split and continues to support his family financially, according to E! Online.

Usher filed for divorce June 12, checking off "irretrievably broken" as his reason to end the marriage and requesting joint custody of the couple's two sons.

Source: EURweb.com