Updated

TMZ has learned the person who is suing an internationally famous celebrity for intentionally transmitting herpes has multiple videos of the sex acts that allegedly transmitted the disease -- and now there's a bidding war for the tapes.

On Wednesday, TMZ was the first to report that an unnamed plaintiff has sued "an A-list celebrity of substantial fame internationally," claiming the unnamed celeb came on to the plaintiff in Las Vegas and swore he was STD free.

The suit claims the celeb actually had herpes, and the pair engaged in "mutual oral copulation, mutual self-gratification, rubbing and massaging each other, play-wrestling, licking and (unprotected) intercourse."

The plaintiff -- who is unnamed and unidentified as either a man or woman -- claims the celeb transmitted the herpes virus and is seeking more than $20 mil in damages.

Now, TMZ has learned that several porn companies have already offered the plaintiff -- through the lawyer, Keith Davidson, a fortune. Youporn.com has offered a cool $1 million, while other companies are offering even more.

Finally, as for why these alleged Las Vegas sex acts were videotaped, the lawsuit claims, "as the [celebrity] expressed, so they could relive the magic over -- and over -- again."