All You Zombies

""I know where I came from, but where did all you zombies come from?""

"--All You Zombies--" (1959) is a short story by Robert A. Heinlein that presents to the reader an interesting time paradox. "The Unmarried Mother," as a bar patron calls himself, unloads his life story onto a willing barman. The barman, however, knows more about The Unmarried Mother than he could ever guess.

At roughly a dozen pages, "--All You Zombies--" provides a provocative story and incorporates many of Heinlein's favorite themes.

As the story contains a twist ending, it is recommended you read it for yourself before reading the associated tropes.

Provides Examples Of:

 * Everyone Calls Him Barkeep - The narrator is only referred to as "the barman" until the end of the story
 * Foreshadowing - The barman becomes very annoyed at the song "My Own Grandpa."
 * Fun With Acronyms - The same "elite military service corps" is referred to at various points in history as the Women's Emergency National Corps, Hospitality & Entertainment Section, the "Space Angels" or Auxiliary Nursing Group, Extraterrestrial Legions, and the Women's Hospitality Order Refortifying & Encouraging Spacemen.
 * No doubt inspired by the Real Life Women Airforce Service Pilots and their naval counterparts, Women Accepted for Voluntary Emergency Service.
 * Help Your Self in The Future
 * Hermaphrodite
 * Incest Is Relative - and how! See also One Degree of Separation below.
 * Luke You Are My Father / Luke I Am Your Father -
 * Most Writers Are Writers - The Unmarried Mother writes short stories for magazines.
 * My Future Self and Me
 * My Own Grandpa - In possibly the most convoluted, mind screwing way possible.
 * Noodle Incident - The Mistake of '72.
 * One Degree of Separation - The various characters are connected by degrees of separation.
 * Ouroboros - The bartender, quite understandably, wears an Ourboros ring.
 * Parental Incest - Again, all part of the story's Timey Wimey Ball.
 * Screw Yourself
 * Stable Time Loop - The barman already knows the recruitment will work.
 * Tangled Family Tree - It's a very tangled family tree, considering that.
 * Take That: Jack Chalker claimed he wrote Downtiming the Night Side to address the questions this story raised but failed to answer.
 * Time Paradox
 * Time Travel
 * Timey Wimey Ball - Don't think too hard on the paradox of the story. You will start bleeding from the nose.
 * Title Drop - In the closing lines.
 * Twenty Minutes Into the Future - As with all Heinlein's works. The latest date given in the story is 1993.
 * Wrong Genetic Sex: The protagonist starts out as an intersex female and...it gets complicated. Her actual degree of intersexualization approaches true hermaphrodism and isn't biologically possible, at least for normal humans.
 * You Already Changed the Past