TMZ caught up with O.J. Simpson in Vegas over the weekend, to finally addressed the conspiracy theory that’s been floating around for decades … that he secretly knocked up Kris behind Robert Kardashian’s back 34 years ago.

In the video caputured by TMZ, the photographer stopped OJ and his daughter if congratulations were in order regarding Khloe’s pregnancy.

Simpson clearly replied, “Well, for Bob, God bless his soul, yeah. I don’t know for me. I don’t think for me I have nothing to do with it.”

He added, “I would be proud … but trust me, I had nothing to do with it.”

WATCH VIDEO OF HIS REACTION