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John Kostly

Goodreads Author

Born

in The United States

Website

https://pricelessgemstone.com

Genre

Romance, Ebooks, Science Fiction

Member Since

November 2023

URL

https://www.goodreads.com/john_kostly

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Hello, I’m John Kostly, but you may know me better by my pen name, “Kostly”. For the past twenty-five years, I’ve been deeply involved in the BDSM and Polyamorous lifestyle, not just as a participant but also as a passionate advocate, educator, and writer. My journey is one that has spanned continents, crossed barriers, and broken stereotypes, all while fostering a deep understanding of this subculture. I have a rich background, including a background in psychology and extensive experience in human sexuality.

My passion for writing began as a personal quest to improve my English, but it quickly became so much more. It became a platform for me to share my experiences, educate, and advocate for a lifestyle that is often misunderstood and misr ...more

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Combine Editions
John Kostly’s books

Average rating: 4.24 · 25 ratings · 7 reviews · 1 distinct work • Similar authors

Amber: Priceless Gemstones

4.14 avg rating — 14 ratings — published 2023 — 6 editions

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* Note: these are all the books on Goodreads for this author. To add more, click here.

2 posts
John Kostly's Blog

FREE BDSM Erotica - How to Mine Amber: Amber Pebble 1 of 3 (Priceless Gemstones - Pebbles Edition)

WARNING: Book is very spicy, and the following ones are more spicy.

Get Free on Amazon Now

GoodReads Page

How to Mine Amber Amber Pebble 1 of 3 by John Kostly

Should be free in ALL countries. If you need a country link, please comment bellow. Read more of this blog post »

1 like · Like • 1 comment • flag

Published on February 23, 2024 03:25

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John is Currently Reading

John Kostly is currently reading

Apex: Book 1: Chloe

by Jen Baldwin (Goodreads Author)

bookshelves: dominant, romantic, romantic-male-dominant, submissive, bdsm, currently-reading

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Jan 13, 2024 02:14PM

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John’s Recent Updates

John Kostly is now friends with PG Devlim
Jan 27, 2026 07:45PM · like
John Kostly joined the groups Advance & Beta Readers and Beta Reader Group
Jan 09, 2026 04:41PM
John Kostly wants to read Captive Prince (Captive Prince, #1) by C.S. Pacat (Goodreads Author)	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Aug 27, 2025 03:50PM · like
John Kostly wants to read An Accident of Stars (Manifold Worlds, #1) by Foz Meadows (Goodreads Author)	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Aug 23, 2025 12:19PM · like
John Kostly wants to read Kushiel's Dart (Phèdre's Trilogy, #1) by Jacqueline Carey (Goodreads Author)	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Aug 23, 2025 12:18PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of Kushiel's Dart by Jacqueline Carey. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — Kushiel's Dart by Jacqueline Carey <iframe sandbox id="wrongBookKindlePreviewScreen">
John Kostly wants to read Lilith's Brood: The Complete Xenogenesis Trilogy (The Xenogenesis Trilogy) by Octavia E. Butler	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Aug 23, 2025 12:18PM · like
John Kostly wants to read Woman on the Edge of Time by Marge Piercy	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Aug 23, 2025 12:17PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of Woman on the Edge of Time by Marge Piercy. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — Woman on the Edge of Time by Marge Piercy <iframe sandbox id="wrongBookKindlePreviewScreen">
John Kostly wants to read Stranger in a Strange Land by Robert A. Heinlein	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Aug 23, 2025 12:17PM · like
John Kostly is now following Angela Knight Author of Shifter (Includes: Warriors of Poseidon #2.5; B...
Aug 23, 2025 12:16PM · like

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Quotes by John Kostly (?)

“This adult novel is a dystopic/utopia sci-fi fetish fairy tale. The story within is erotic. It contains politics, intimate encounters, and depictions of heavy BDSM sex—including sadomasochism—between consenting adults that will inspire a wide range of emotions. I only intended it for those who enjoy such content. Many will find it engaging and entertaining, but some will not. If you do not enjoy BDSM erotica, I suggest you read something else.”
― John Kostly, Amber: Priceless Gemstones

tags: content-warnings

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“It starts as it always does, with a glimpse. Her stunning looks light the fire of his deepest desire. She’s one of many, though no others have come close. The customary slave offering encompasses a plethora of stunning specimens. Though, only one catches his eye.”
― John Kostly, Amber: Priceless Gemstones

tags: intro, sexy-romance, start

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John’s Quotes

tags: intro, sexy-romance, start

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“The road to hell is paved with adverbs.”
― Stephen King, On Writing: A Memoir of the Craft

5735 likes

“So many books, so little time.”
― Frank Zappa

tags: books, humor

151695 likes

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”
― Albert Einstein

tags: attributed-no-source, human-nature, humor, infinity, philosophy, science, stupidity, universe

148500 likes

tags: content-warnings

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John’s Groups

Siϻpʟy Sϻuʈ — 1559 members — last activity Jan 14, 2026 01:33AM
Welcome to the Smut Lair… We read, vent, chat and share about our passions and favorite reads.

Beta Reader Group — 29888 members — last activity 5 hours, 49 min ago
A place to connect writers with beta readers. Sometimes writers get so involved in the plot they can't see the wood for the trees. Hang on a sec'--th ...more

Goodreads Librarians Group — 313415 members — last activity 0 minutes ago
Goodreads Librarians are volunteers who help ensure the accuracy of information about books and authors in the Goodreads' catalog. The Goodreads Libra ...more

Book Promotion Forum by Genre — 718 members — last activity Dec 19, 2025 08:59AM
Authors: An opportunity for authors to post descriptions and internal links to their books. Readers: A resource to find new books.

Guilty Pleasures — 1429 members — last activity Feb 08, 2026 11:38AM
Have that ONE genre you just can't get enough of? We're here for you! Don't be shy explore all of your bookish Guilty Pleasures . Must be 18+ to ...more

Sex, BDSM, and Romance? — 234 members — last activity Oct 23, 2024 10:20AM
How much is too much? What would a person have to include in a romance to completely turn you off?

BDSM — 6902 members — last activity Feb 01, 2026 02:05PM
This is a group where you can share - whether you live the lifestyle, enjoy reading stories with BDSM elements, or both. We have Educational Topics, ...more

Kink*Freaks — 162 members — last activity Jan 16, 2026 07:18PM
all kinky book related topics.

Femdom — 627 members — last activity Jan 24, 2026 10:25AM
This is a group catered for female domination form of bdsm.A group for chatting, discussing about female domination books.If you like femdom stories c ...more

Turning Pages At Midnight — 3581 members — last activity 39 minutes ago
Turning Pages at Midnight is a friendly, easy going group of avid readers who love to read, chat and discover new books. We offer optional monthly bud ...more

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