from www.tmz.com – Since the Heidi Montag/Spencer Pratt sex tape is never going to see the light of day, a leading porn company is going after the next best thing … a porn directed by Speidi themselves.

TMZ has obtained a letter sent by Vivid honcho Steven Hirsch, offering the couple the chance to get behind the lens. The idea, it appears, is to have the gruesome twosome helm skin flicks that will draw directly from the couple’s own fantasies.

We’re told both sides will get together in the near future and discuss the deal, and Spencer is definitely interested … if the numbers are right.

That’s a phrase that applies to almost anything Spencer is offered.