Bush's New Orleans Saints are just one win away from the big game, which will take place in Miami, Florida on 7 February.
Recent reports suggested the couple agreed that if Bush comes home a winner he'll ask Kardashian to be his wife.
But the Keeping Up With The Kardashians star insists the on/off couple is still taking its romance slowly.
She writes on her official website: "There is a story going around saying I made a bet that Reggie would propose if The Saints won the Superbowl. This is not true. I never made any kind of bet. A radio interviewer asked what I dreamed for in 2010 and I was hesitant and thinking about it and they said what about a ring... I said yes, a Superbowl ring for Reggie. Then they said that if he gets a Superbowl ring, I get an engagement ring, and I said 'ok deal!' LOL (laugh out loud).
"This was taken way out of context by a lot of media outlets, who are saying I made a bet with Reggie, which I didn't. In NO way is that a bet I made with Reggie! If you listen to the interview you can hear exactly what I said! It bugs me how people twist stories when the interview is right there to hear for yourself. I just wanted to clear that up!"
The couple, who've been dating for over two years, got back together in late September 2009 after announcing a "break" last July (09).