Tammy Sytch is licking her chops at the release of her celeb porn video that hit the Internet Monday and challenged former wrestler turned porn star Chyna to a match.

Now that she's prime time in the porn world, Tammy's taking the opportunity to challenge her friend Chyna, telling us ... "without a doubt she can kick my ass in the wrestling ring, but I really don't think she stands a chance against me where it matters most. In the bedroom."

Tammy even gave her the option of either a one-on-one sex match or they could bring in a man and see who taps out first.