Redhead Laura, who along with Marco Pierre White Junior sparked more than 600 complaints following their sleazy romp on the reality show, apparently stars in the frisky footage with an unnamed English Premiership player.
A source has claimed to the Daily Star that a mystery seller is attempting to flog the sex tape for a staggering £10,000.
Laura's agent, however, warned: "We will be instructing Laura's legal team immediately to take action against the individual attempting to sell this private tape."
On Friday night, Marco became the first BB housemate to be evicted. His exit from the Channel 5 reality show came after he and Laura were seen having sex in the Big Brother house.
At first, there was confusion about exactly what had gone on, however Laura later admitted she had slept with Marco.
Their sleazy on-screen antics, which were aired before 10pm, has sparked more than 600 complaints to Ofcom. The TV watchdog has now launched an investigation.
Meanwhile, since his eviction, Marco appears to have confirmed his split with fiancée Kim Melville-Smith, while she has branded Laura "rude, trashy and disrespectful".
Big Brother continues tonight at 9pm on Channel 5.
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