I believe him. He simply wanted to have a pic of Aniston and Vaughn. That Aniston just went out of her house topless, it's a bonus. I don't believe, however, that he didn't want to sell the pics.
I wouldn't believe Aniston just went out of her house topless either. She would have to be a real idiot. Or maybe this is just publicity. Always keep the attention on those stupid celebrities.