Mildred Patricia Baena, a member of former California Governor Arnold Schwarzenegger's household staff for 20 years, is seen in an undated photo from her MySpace page appearing on the site May 18, 2011. U.S. newspapers and other media reported May 18 that Baena is the mother of Schwarzenegger's son, born during her time living with Schwarzenegger and his family.(Xinhua/Reuters Photo)?

Arnold Schwarzenegger's mistress Mildred Baena gave an interview to HELLO! Magazine intending to set the record straight, according to media reports Thursday.

The housekeeper told the magazine she didn't realize at first that the boy, Joseph, was Schwarzenegger's son.

“It was as Joseph grew and I started to see the resemblance that I wondered – but It became more apparent as time went on.” HELLO! quotes Baena as saying.

When his grandmother sat him down one year ago to explain that Arnold Schwarzenegger was his father, Joseph exclaimed: "Cool!".

His mother said the 13-year-old boy is looking forward to building a relationship with the former Hollywood star.

Baena also described collapsing to the knees of Schwarzenegger's wife, Maria Shriver, and tearfully confessing to Shriver late last year. But, instead of being vengeful, Shriver told her to get up and then cried with her.

She said the 63-year-old former California State governor was a ''good man'' who would be ''suffering too'' and added: ''He loves Maria. I hope with time they work things out.''