A sex tape to a celebrity has become like a hot dinner to us mere mortals…

And now there’s a new sex tape threatening to make the rounds on the worldwide web. This lady is so famous, it could become the biggest film of 2013.

The victim/culprit? The beautiful Emma Stone…

While the Easy A actress has always been known as more of a comedic sweetheart than a sex tape poser, a close insider told RadarOnline that Emma, 24, has a wild streak that culminated in the production of this homemade sex tape.

"Emma Stone has a sex tape and that's a fact," the source told RadarOnline.com.

"She made it long before she started dating Andrew Garfield (damn, says us), and before she really became a household name. She was just young and probably thought nothing would ever come of it."

According to the insider, the tape has not been shopped around…yet.

"The tape remains in the hands of the person she made it with," the source said.

"But that doesn't mean there's any guarantee that it won't eventually hit the market. The higher Emma's star rises, the more valuable that tape becomes."

The source also told the gossip publication that Emma certainly isn't the type who would relish in releasing a sex tape and sees no benefit of making a name for herself by using it.

"Emma's really happy with her career and proud of where she is," the source said.

"There's no way she would organize the release of the tape; in fact, she would fight to stop it. She has no respect for women like Kim Kardashian and Paris Hilton who became famous from making a sex tape.”

Oooh, harsh.

Here are some more celebrities caught with their pants down...