Kim Kardashian's sex tape sales soar after baby news

Reality TV star Kim Kardashian poses as she arrives to attend an event celebrating the 40th anniversary of Cosmopolitan magazine in Mexico City in this October 4, 2012 file photo. U.S. rapper Kanye West and Kardashian are expecting their first child, celebrity media outlets reported on December 31, 2012. REUTERS photo

Kim Kardashian's infamous sex tape sales have doubled since her boyfriend Kanye West announced that the couple are expecting a baby.

Vivid Entertainment, that owns 'Kim K Superstar', said that the video-on-demand purchases of the sex tape have spiked 80 per cent since Sunday night, TMZ Online reported.
It is the biggest increase that the tape has seen since the 32-year-old reality star married Kris Humphries.

The reality TV star had sued distributors Vivid Entertainment for ownership of the 2003 tape - allegedly stolen during a house move but dropped the suit in April 2007 and settled with the company for USD 5 millions.