$20 Million Lawsuit Alleges 'A-List Celebrity' Gave Sexual Partner Herpes

May 13, 2011— -- A $20 million lawsuit filed in California claims an unnamed "A-list male" celebrity deliberately gave his sexual partner herpes.

"As a carnivorous plant lures unsuspecting victims with veiled deceit, so too did the defendant in the case," states the complaint filed in Los Angeles County on Wednesday by attorney Keith M. Davidson. It alleges that the "celebrity of substantial fame intentionally wielded his influence, money and notoriety to attract his prey."

Read the entire $20 million lawsuit against the "A-list celebrity"

The suit claims that the plaintiff, who is not named or identified as a man or woman, contracted the sexually transmitted disease by the defendant, who is listed as "John Doe" in the complaint, after they engaged in sex and drug use in a Las Vegas hotel room last month.

"For Plaintiff, the night will last forever, not solely in the form of the video-tape that recorded the evening, but in the form of a dreaded sexually transmitted disease spread by the Defendant to the Plaintiff," the complaint stated.

The plaintiff is suing for sexual battery; intentional infliction of emotional distress; negligent infliction of emotional distress; and fraud in the misrepresentation against the defendant.

The complaint described the celebrity as a star who has appeared on television and whose net worth is more than $100 million.

The plaintiff claims that the defendant said he was STD-free "without equivocation" when asked, while the defendant inquired about plaintiff's sexual history, the complaint said.

The plaintiff claims that she or he was also STD-free and was in a "monogamous relationship for years."

The complaint revealed that the pair participated in "mutual self-gratification, rubbing and massaging each other, play-wrestling, licking and intercourse," and that they recorded the events - including ingesting illegal drugs - on their cell phones to, as the defendant expressed, "relive the magic over-and-over again."

The plaintiff claims that the defendant did not do his legal duty to prevent injury and misled the plaintiff by not disclosing he did have a sexually transmitted disease, resulting in the plaintiff enduring physical pain, anguish, shock and humiliation.

"Defendant has taken advantage of Plaintiff causing Plaintiff previously unnecessary medical care, comfort, safety, health and emotional well-being," the complaint said.

The video tape of the sexual acts has erupted a bidding war among porn companies, according to TMZ.

Required Disclosure?

Time and again, courts have decided that if someone is infected, aware of it and is sexually active, that person has a duty to inform a partner.

In November of 2010, less than two years after Behr's victory, a Los Angeles court awarded $2.49 million in damages to a woman infected with herpes by an unfaithful husband.

In March, a California court upheld a jury's previous verdict that millionaire Thomas Redmond was responsible for $6.75 million in damages after exposing his former girlfriend Patricia Behr to herpes.

ABC News' Sherisse Pham contributed to this report.