According to the TMZ .com

Sources tell TMZ ... Spencer Pratt has a price in mind for the Heidi Montag sex tape -- $5,000,000

As we first reported, Spencer is shopping the tape to porn powerhouse Steven Hirsch at Vivid Entertainment. Sources close to the deal tell TMZ they have heard Spencer's asking price and that Vivid doesn't think the figure is "an unreasonable price."

For his part, Spencer tells TMZ that he has an "entire website's" worth of footage, saying, "I will knock Club Jenna out of the water."

Spencer went on to say he thinks releasing the tapes will be good for Heidi, saying, "When I realized how much Kim [Kardashian] was making, my logic is this is the best thing I can do for my ex-wife. Kim is on the cover of Allure right now. Heidi isn’t on the cover of Allure."

Has learned Spencer Pratt is currently shopping what he claims is a sex tape featuring himself and his soon-to-be ex-wife Heidi Montag.

Heidi Montag Sextape

We're told Spencer has contacted the Rolls-Royce of porn -- Vivid Entertainment -- and is asking for a meeting.

As we first reported, Heidi has threatened to sue Spencer over a tell-all book -- but she has not made any mention of a sex tape. Unclear if the alleged sex tape with Heidi is pre or post-op.

Vivid honcho Steven Hirsch tells us, "I just got off the phone with Spencer Pratt about a sex tape with Heidi Montag."

He continues, "We are in early negotiations to possibly come to terms for a deal."

Spencer has told a friend that the alleged tape "makes Kim Kardashian look like an amateur."