Sales of Kim Kardashian's sex tape got an unexpected boost after Kanye announced to the world that the couple is expecting, according to TMZ.
Vivid Entertainment -- the porn company which owns "Kim K. Superstar" -- reported that video-on-demand purchases of the tape have shot up 80% since Sunday night. This is the largest increase in sales of the tape since Kim's wedding to Kris Humphries.
Kanye has been boosting sales of the tape for a while now. According to Vivid, overall sales of the video have steadily increased every month since he started dating Kim last Spring.