Arnold Schwarzenegger and Mildred 'Patty' BaenaArnold Schwarzenegger's mistress, Mildred "Patty" Baena, has threatened to sue Entertainment Tonight over an interview with her ex-husband, Rogelio Baena.

In an interview with ET, Rogelio revealed that Patty led him to believe her 13-year-old child with Schwarzenegger was his own and only learned the truth last week ago when the news of the affair and Schwarzenegger's confession came out. Rogelio said he felt 'betrayed' by the news.

TMZ is reporting that after the interview was aired, Patty's lawyer sent a letter to ET claiming that Rogelio always knew that the love child wasn't his and said that the entertainment channel ran the interview without doing any research into Rogelio's history with his ex-wife.

The one time Schwarzenegger family housekeeper is also claiming that ET paid "in excess of six figures to spew lies."