Spencer Pratt 'shopping Montag sex tape'

Spencer Pratt is reportedly trying to sell a sex tape featuring estranged wife Heidi Montag and himself.

The former Hills star, who split from Montag earlier this year, has contacted Vivid Entertainment to arrange a meeting about the footage, according to TMZ.

Steven Hirsch, boss of the adult entertainment company, said: "I just got off the phone with Spencer Pratt about a sex tape with Heidi Montag. We are in early negotiations to possibly come to terms for a deal."

Pratt apparently told a friend that the tape "makes Kim Kardashian look like an amateur". He also allegedly has footage from both before and after Montag's extensive cosmetic surgery procedures.

Montag recently threatened to sue her former husband after he announced plans to write a tell-all book about their marriage.