Blac Chyna quickly conceded that she was the woman giving the worst top ever in a brief sex tape that leaked last week.

In fact, she claims she's going to pursue charges against whoever leaked it. (But hasn't yet.)

However, the reality TV figure is denying she's the female talent in a different 13-minute video that shows a woman with Chyna's skin tone, body type and hairstyle engaging in extended sexual intercourse.

Chyna's legal team has sent cease and desist letters to the porn sites which are hawking this video with Chyna's name.

For that reason, we're not going to link it. But it's easy to find: Just go to your favorite adult page and put Chyna's name in the search bar.

If you did, do you think that's Chyna?