Lauren Sánchez's new children's book is already a bestseller. But one particular Amazon review is getting noticed.

In the post, she also shared a photo of old school yearbook portraits and added in her caption, "Even one of my old teachers showed up and brought a yearbook. 😮”

Jeff Bezos' fiancée, Lauren Sanchez, is being sued by her former yoga instructor over her new children's book, 'The Fly Who Flew to Space.'

Jeff Bezos’ fiancee, Lauren Sánchez, is being sued by her former yoga teacher over her new children’s book. Wellness guru Alanna Zabel alleges Sánchez’s “The Fly Who Flew To Space,” which was published in August, is a rip off of her children’s book “Dharma Kitty Goes To Mars,” according to a lawsuit obtained by TMZ.

Zabel’s self-published book, “ Dharma Kitty Goes to Mars ” — which came out in March of last year and is sold, ironically, on Amazon — is a tale of a science student’s pet cat that falls asleep on a space shuttle and wakes up on a different planet.