Montag, Pratt 'kill sex tape negotiations'

Heidi Montag and Spencer Pratt have reportedly ended negotiations with a porn company that sought to distribute their sex tape.

TMZ reports that the couple have stopped discussions with Vivid Entertainment because "they're no longer interested".

Pratt's assistant reportedly sent a letter to Vivid boss Steven Hirsch claiming that "Heidi's made it very clear that she is not interested in releasing any tapes".

The letter goes on to assert that "it looks like she pulled the kill switch".

Hirsch stated that the letter from Pratt's assistant also said: "Spencer's not interested in further destroying their relationship by pursuing an avenue she's so vehemently against."

The assistant allegedly told Hirsch that Pratt initially believed a $5 million offer would have swayed Montag to release the tape, but she insisted that she will "bring out the legal team if he persists".