According to a firsthand account at The Dirty a woman is claiming that Brandon Blackstock is having an affair with her and has done so for the past five months. Brandon is married to Kelly Clarkson. His first wife split with Brandon after he cheated on her and there have been persistent rumors that Brandon has been cheating on Kelly too. I'm not sure why you would marry a guy when his own family and his ex-wife said he cheated on his first wife. The woman who spoke out at The Dirty says that she has not slept with Brandon but they have been intimate in other ways. She isn't clear about other ways. From what she says I'm assuming sexting and some petting. I'm guessing The Dirty has seen the texts.