Arnold Schwarzenegger -- I Didn't Pay My Baby Mama Mildred Baena 'Hush Money'

Arnold Schwarzenegger I Didn't Pay My Baby Mama 'Hush Money'

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Arnold Schwarzenegger SWEARS the money he religiously paid his baby mama for their secret son was not "hush money."

In an interview for "60 Minutes" on CBS that aired tonight, Arnold refused to answer questions regarding how he found out about Joseph -- the secret son he had with his former housekeeper Mildred Baena.

Arnold says he never had a point-blank conversation with Mildred about Joseph, he just "put things together" and secretly started sending her money.

Arnold says Mildred -- who was still working for him at the time -- never questioned the cash, saying she "knew what it was about," but insists it wasn't money to keep her quiet.

He then defends her and says,"Mildred is a good person. She was not out to get me or take advantage of me."

So we gotta ask ...