Oh, this is going to be an awkward birds-and-bees conversation. Sales of Kim Kardashian’s sex tape have apparently soared since the reality-TV star announced she is expecting a baby with Kanye West, TMZ reported on Wednesday. Vivid Entertainment, which owns the “Kim K Superstar” tape, said this is the biggest spike in sales they’ve had since Kardashian’s short-lived marriage to Kris Humphries. But don’t fret Kimye fans: sales have been increasing since Kardashian and West started dating last spring.