Kim Kardashian's unborn baby is already helping her cash in, but in a very unexpected way.

TMZ reports sales of the 32-year-old's sex tape, "Kim Kardashian Superstar," have skyrocketed since news broke that she and Kanye West are expecting their first child together.

Adult entertainment company Vivid Entertainment owns Kardashian's sex tape and told TMZ that video-on-demand purchases of the reality star's romp with then-boyfriend Ray J have spiked 80 percent since Sunday night.

Read the full Huffington Post article here.