Welcome to the Exclusive World of the Titans
Sierra Cartwright's Titans universe is one of the most popular and expansive contemporary BDSM romance collections on the market today. Centered around a secret society of the world's most powerful, wealthy, and dominant gentlemen, the series blends high-society luxury with consensual power exchange, intense vulnerability, and deeply romantic character arcs. While the main series is often referred to simply as the Titans Billionaires series, Cartwright has expanded this elite world into several connected subseries, each exploring different locales, professions, and relationship structures (including MFM menage in the Captivated spin-off).
Because these series are so interconnected—with characters crossing over or sharing social circles—navigating the reading order can seem daunting at first glance. However, Cartwright writes her books as standalones, meaning you can dive into any story that catches your eye. That said, reading in order allows you to watch the secret society and its friendships evolve. Here is your definitive guide to reading the entire Titans universe.
The Recommended Path: Where to Start
If you want the absolute best experience, we recommend starting with the original series that launched it all: Titans Billionaires. Specifically, you should begin with the very first book, Sexiest Billionaire (2018). This book establishes the foundation of the Titans' secret society, introduces key recurring characters, and sets the tone for the BDSM dynamics and emotional trust that define the entire universe.
From there, you can read the main series in order, or branch out into the spin-offs based on the tropes you enjoy most: the elite New Orleans setting of The Quarter, the high-stakes thrill of Sin City, the ménage dynamics of Captivated, or the dark romance elements of the Moretti Mafia series.
Titans Billionaires (The Main Series)
This is the core series focusing on the original members of the Titans secret society. The books follow these powerful men as they find women who challenge them, demand their respect, and ultimately capture their hearts. Read them in publication order to get the best character progression:
- Sexiest Billionaire (2018) – Jaxon Mills and Willow Vance
- Billionaire's Matchmaker (2018) – Rafe Sterling and Hope Malloy
- Billionaire's Christmas (2018) – Damien Sterling and Nikki
- Determined Billionaire (2019) – Jack Sinead and Ashley
- Scandalous Billionaire (2020) – Braden Gallagher and Lizzie Ryan
- Ruthless Billionaire (2022) – Hunter Devlin and Avery
- Forbidden Billionaire (2025) – The latest release in the main series line
- Billionaire's Obsession (Expected August 2026) – The highly anticipated upcoming addition
Titans: The Quarter
Set in the historic and atmospheric French Quarter of New Orleans, this spin-off series centers around the exclusive club established by the Titans. It features the same intense power dynamics and emotional depth as the main series, with a sultry Southern backdrop:
- His to Claim (2019)
- His to Love (2019)
- His to Cherish (2021)
Titans: Sin City
Leaving the opulent estates of the South behind, the Sin City subseries takes readers to the neon-lit, high-stakes casinos of Las Vegas. The romance here is fast-paced, intense, and carries a thrilling edge of danger:
- Hard Hand (2018)
- Slow Burn (2021)
- All-In (2021)
Titans: Captivated
For readers who enjoy polyamorous BDSM romance, the Captivated subseries is a fan favorite. These books focus on MFM (Male/Female/Male) ménage relationships, where two dominant men share and cherish a single submissive woman. These are highly emotional, protective, and intensely steamy books:
- Theirs to Hold (2021)
- Theirs to Love (2022)
- Theirs to Wed (2022)
- Theirs to Treasure (2023)
- Theirs to Corrupt (2024)
- Theirs to Possess (2025)
- Theirs to Tempt (2026)
Titans: Moretti Mafia
If you prefer your romance with a darker, more dangerous edge, Cartwright's Moretti Mafia subseries blends the elite wealth of the Titans with the high-stakes, forbidden underworld of organized crime. These stories feature protective, alphamale heroes and high-risk scenarios:
- Vengeful Vows (2024) – Originally titled Billionaire's Revenge
- Savage Vows (2025)
- Merciless Vows (2026)
Titans Quarter Holidays
This festive subseries brings holiday cheer to the Titans Quarter setting, offering fans sweet, steamy, and emotional BDSM romances set during the Christmas season:
- His Christmas Gift (2022)
- His Christmas Wish (2022)
- His Christmas Wife (2023)
Titans: The Reserve
This spin-off features exclusive retreats and luxury country environments where Titans go to escape the pressures of the corporate world and indulge their BDSM desires:
- Tease Me (2022)
What to Know Before You Start
Before diving into Sierra Cartwright's Titans universe, keep in mind that the books heavily feature BDSM elements, consensual power exchange, and dominant/submissive dynamics. Unlike some darker erotica, Cartwright's stories are deeply rooted in safety, communication, and emotional connection. The heroines are strong, independent women who choose to surrender control in their personal relationships, while the heroes are fiercely protective and respectful of boundaries. Whether you read by publication order, follow your favorite subseries, or pick books based on specific tropes, the Titans universe offers a luxurious escape into passion and power.