The reality TV star and ex-pop singer said that the sex lasted less than a minute and that the footage was "dreadful".
"Yes, I made a sex tape once. But it wasn't on long enough," she told Now magazine.
"It was over within a minute. I watched it back and it was dreadful. So we smashed it up."
It was reported in the tabloids in 2010 than Katona's ex-lover Mark Croft was threatening to release a sex tape featuring the pair, but the footage never surfaced.
Katona also confesses in the interview to regularly drunk dialling and faking orgasms with past partners.
Photo gallery - ten worst sex tapes:
Copyright: PA Images