Reinhardt's lawyers have fired off a cease and desist order to gossip website ZackTaylor.ca, warning the blogger to remove the claims or face a lawsuit.
The rumours surfaced online earlier this week suggesting Hilton had become the star of a second steamy home video while she was dating Reinhardt, the Femalefirst.co.uk reports.
Reinhardt's representative dismissed insisting "it doesn't exist and never existed".
The socialite previously starred in 2004's racy “1 Night In Paris”, which was shot by ex-film producer Rick Salomon.
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