Books like 'Crimson'
Readers who enjoyed Crimson by Ethan X. Thomas also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.
futuristic sc-fi romance mlm steamy friends-to-lovers age-gap law-enforcement aliens
-
Lor by Lily Mayne
Rated: 4.38 of 5 stars · 16 ratingsMy role as Moric—ruler of a small and prosperous fiefdom in a quiet corner of the world—has always been painfully dull and stifling.Until a beautiful, otherworldly creature with pink skin and a mane of golden hair falls through a strange void that has appeared in my guestroom.And I am instantly captivated by him.I have never seen anything like him... -
![Affiliations, Aliens, and Other Profitable Pursuits by Lyn Gala]()
Affiliations, Aliens, and Other Profitable Pursuits by Lyn Gala
Rated: 4.33 of 5 stars · 12 ratingsA desire for status has brought Ondry and Liam to a human world to trade, but dealing with humans has brought up all the old pain in Liam’s heart. Even though Ondry would do anything to protect his beloved palteia, he doesn’t know how to protect Liam from himself... -
![Aces Over Queen by Susan Hayes]()
Aces Over Queen by Susan Hayes
Rated: 4.50 of 5 stars · 6 ratingsTo win their queen’s heart, this pair must risk it all. Royan Watson lived by three simple rules: No regrets, no relationships, and no slowing down. No exceptions. Then steady, reliable, and sexy as hell Owen Connors crossed his orbit, and Royan’s rules went out the airlock. Astek station is in chaos and Tiana Astor has been sent to set things right... -
![Inversion Point by Jenn Burke, Kelly Jensen]()
Inversion Point by Jenn Burke, Kelly Jensen
Rated: 4.38 of 5 stars · 8 ratingsZander and Felix's relationship has been to the brink and back: the Human-Stin War, imprisonment and an actual death/resurrection. Zander's death, to be specific, and the experience has left him…changed. The mysterious race known as the Guardians chose to revive him and appointed him as their emissary... -
-
![Pancakes by Manna Francis]()
Pancakes by Manna Francis
Rated: 4.38 of 5 stars · 8 ratingsAnother short story based on The Administration series. Warrick's and Toreth's relationship goes to the next level but it frightens Toreth off... -
![The Captain's Mate by C.W. Gray]()
The Captain's Mate by C.W. Gray
Rated: 4.38 of 5 stars · 8 ratingsWelcome back to Charybdis Station and the crew of the Blue Solace: (Sixth Book in the series) Draif Ando started life as a slave on Vextonar. When he was fifteen, he met his best friend, Leti Ando, and life got a lot better. Now he's a Charybdis Station captain and works closely with the Lord Admiral of the Station... -
![Assimilation, Love, and Other Human Oddities by Lyn Gala]()
Assimilation, Love, and Other Human Oddities by Lyn Gala
Rated: 4.21 of 5 stars · 14 ratingsOndry and Liam have settled into a good life, but their trading is still tied up with humans, and humans are always messy. When political changes at the human base lead Ondry to attempt a difficult trade, the pair find themselves entangled in human affairs. Liam wants to help the people he left and the worlds being torn apart... -
![Dark Cure by Cynthia Sax]()
Dark Cure by Cynthia Sax
Rated: 4.33 of 5 stars · 6 ratingsA warrior seeking forever faces a medic living in the moment. Gisella, the Refuge’s medic, is dedicated to her role. She doesn’t have the space in her lifespan for love, a mate, or children. Healing is her entire focus. But she’s also a female in her prime. She has needs, wants, cravings…especially for a scarred, long-haired barbarian warrior temporarily residing in the settlement... -
![Playing Their Parts by Evangeline Anderson]()
Playing Their Parts by Evangeline Anderson
Rated: 4.33 of 5 stars · 6 ratingsTwo detectives, hot on the heels of a killer...Undercover as adult actors on the wild planet of BachanaliusWill Steel and Cassie find passion while...PLAYING THEIR PARTS? Cassandra Steel and Commander Stone are a unique pair. Together, they comprise the first human/Kindred detective team on the Tampa PD... -
![Taoree by Michele Notaro]()
Taoree by Michele Notaro
Rated: 4.33 of 5 stars · 6 ratingsIf you’re reading this, I hope that means that we’ve survived, but after everything I’ve seen, I’m sure that’s only wishful thinking… This is my story… a story of what happens when you trust an alien race. A race that lived peacefully with humans for over two years, but something suddenly changed... -
![Stealing Her Heart by Evangeline Anderson]()
Stealing Her Heart by Evangeline Anderson
Rated: 4.33 of 5 stars · 6 ratingsA Kindred thief who longs for a female to love... An abandoned woman, trying to start again... When the two of them are thrown together, sparks fly. But what happens when Vicky has to pretend she's a professor Who teaches sexual techniques to younger men? You'll have to read Stealing Her Heart to find out. Vicky Erickson is having a lousy Valentine’s Day... -
![Designed Collision by Viola Grace]()
Designed Collision by Viola Grace
Rated: 4.33 of 5 stars · 6 ratingsA stranger walks through the woods and offers to take her from her broken world. Hell yes. With conditions.With the asteroid looming, she makes a run for a family farm and the animals therein. After the crash with communications cut off, she lives a routine of subsistence and survival with no other soul to speak to... -
![Clan and Command by Tracy St. John]()
Clan and Command by Tracy St. John
Rated: 4.33 of 5 stars · 6 ratingsLosing the one man he loved convinced Piras he would never have a chance at happiness. He is too different from the other members of the Dramok breed to attract a Nobek warrior and Imdiko nurturer to his clan. Unwilling to pretend to be someone he is not, he faces a lonely future. Nobek destroyer captain Kila’s one night with Piras was a shocking revelation... -
![Game, Set by Manna Francis]()
Game, Set by Manna Francis
Rated: 4.33 of 5 stars · 6 ratingsAnother not-so-short story in The Administration series. Toreth gets saddled with a Socioanalyst, who just so happenes to know Warrick from long back... -
-
![Shopping & Fucking by Manna Francis]()
Shopping & Fucking by Manna Francis
Rated: 4.33 of 5 stars · 6 ratingsAnother short story in The Administration series.Toreth takes Warrick shopping for something a bit more lucrative... -
![Wait For It by Manna Francis]()
Wait For It by Manna Francis
Rated: 4.33 of 5 stars · 6 ratingsAnother short story in The Administration series.Warrick asks Toreth to wait for it as long as he can stand it. It being sex... -
![Boy's Toys by Manna Francis]()
Boy's Toys by Manna Francis
Rated: 4.33 of 5 stars · 6 ratingsAnother short story in The Administration series.Warrick finds a new kink: guns... -
![Smoke & Cameras by Manna Francis]()
Smoke & Cameras by Manna Francis
Rated: 4.33 of 5 stars · 6 ratingsAnother short story in The Administration series... -
![Pets in Space 4 by S.E. Smith, Anna Hackett]()
Pets in Space 4 by S.E. Smith, Anna Hackett
Rated: 4.33 of 5 stars · 6 ratingsFor a limited time only! Pets in Space® 4 is proud to present 13 amazing, original new stories! Join the adventures as today’s leading Science Fiction Romance authors take you on a journey to another world. Pets in Space® proudly supports Hero-Dogs[dot]org, a non-profit charity that provides service animals to veterans and first responders in need... -
![Class Zero by Viola Grace]()
Class Zero by Viola Grace
Rated: 4.33 of 5 stars · 6 ratingsPadana has negotiator training and an imperial bloodline. It makes her valuable to one man in particular…if he can find her.Growing up in the shadow of one of Terra’s champions was a comfortable place to be. Padana was the third child of the Empress Amanda Tyrell of the Haldis Imperium, and she was a very requested bride... -
![Fated Consort by Viola Grace]()
Fated Consort by Viola Grace
Rated: 4.33 of 5 stars · 6 ratingsTwo hellish years after the asteroid hit Earth, Mercy and Mender stagger to a pickup point and get taken to the education station. They get medical care, education, and languages. Mender goes through a few queries while Mercy is in medical, and when she is out, he comes to her with the offer. After discussion, they decide that he should take the offer, and he does, but she has to remain with him... -
![Unexpected Hero by Viola Grace]()
Unexpected Hero by Viola Grace
Rated: 4.33 of 5 stars · 6 ratingsKidnapped, ransomed, and rejected, she didn’t think things could get any worse until she realized that the rescue approaching was going to have conditions.Misty survived a horrible life and terrible parents and siblings to make it across the stars when her world ended. Those that hurt her were on the same ship... -
![Reaver's Kiss by Elin Wyn]()
Reaver's Kiss by Elin Wyn
Rated: 4.33 of 5 stars · 6 ratings“What are you?” a deep voice rumbled, and I sat up in shock then froze.I was at the side of a clearing, tall, twisted trees lacing the sky with slender branches far overhead all around, deep shadows at their bases.A circle of dark sky above was filled with a giant full moon.I swallowed hard.To its side, I saw a second smaller orb.Two moons. That… that was different.I looked around again... -
![Taken by Jessica Grayson, Aria Winter]()
Taken by Jessica Grayson, Aria Winter
Rated: 4.33 of 5 stars · 6 ratingsWhen we crashed on an ice planet, my A'kai master drank of my blood to survive. We find a settlement of his people; they've been stranded here too, for the past five years.Bound and thrown in a cage, I've all but given up hope of rescue until one of the A'kai guards takes pity on me.Defying his people and his Commander, Erolas helps me escape... -
-
![Ragoru by S.J. Sanders]()
Ragoru by S.J. Sanders
Rated: 4.33 of 5 stars · 6 ratingsHundreds of years before RedCivilization is failing in a steady decline. In a last-ditch effort to save themselves, humanity has turned to trying to understand their world even as they seek to protect themselves from the monsters within it... -
![Regi's Goddess by Lyn Gala]()
Regi's Goddess by Lyn Gala
Rated: 4.33 of 5 stars · 6 ratingsRegi and Dante landed on one of the Empire's border planets while the exalteds try to understand the involvement of the gods. Regi's people are xenophobic, so he's determined that his crew will make a good impression. The alternative is unthinkable, especially with so many Kowri suggesting that the gods would rather see the outsiders dead rather than show them respect... -
![Clan and Conviction by Tracy St. John]()
Clan and Conviction by Tracy St. John
Rated: 4.25 of 5 stars · 8 ratingsThe drug Delir is sweeping the Kalquorian Empire, leaving madness and death in its wake. Investigator Dramok Gelan has already lost his enforcer partner in a deadly shootout because of the case. With no clues or suspects, he despairs of putting an end to the epidemic. Then a familiar face enters the picture: new partner and former lover Nobek Wynhod... -
![Dark Fire by Cynthia Sax]()
Dark Fire by Cynthia Sax
Rated: 4.25 of 5 stars · 8 ratingsWhat the Beast wants, the Beast gets. Dare’s savage nature has made him an outcast among his kind. The silver-scaled Dracheon warrior can’t control his inner beast. It’s too strong. When his primitive instincts told him his destined mate was on Carinae E, he had no choice. He had to travel to the outlaw planet. There, he hoped to meet a female powerful enough to survive his Drache... -
![Crashed on an Ice World by Anna Hackett]()
Crashed on an Ice World by Anna Hackett
Rated: 4.25 of 5 stars · 8 ratingsHe’s her boss. She’s his best friend. These two deep-space convoy security specialists are fighting their simmering attraction…until a starship crash on a deadly ice world changes everything.Elana Korra loves her security job as a medic on the convoy ship, the Sky Nomad…except for the fact that she’s in love with her boss... -
![Surrendered by Evangeline Anderson]()
Surrendered by Evangeline Anderson
Rated: 4.20 of 5 stars · 10 ratingsCommander Thornex is a Hybrid--half Kindred and half Pyro--a much feared people who have the ability to unleash horrific maelstroms of flame whenever they are angered. All his life Thorn has struggled to control the destructive power within him. A horrible accident in his past made him swear to never unleash the fire again and for many years, he has kept himself under tight control... -
![Ice Planet Barbarians Part 5: Truth by Ruby Dixon]()
Ice Planet Barbarians Part 5: Truth by Ruby Dixon
Rated: 4.20 of 5 stars · 10 ratingsNow that I've learned the alien barbarian's language, all the holes are filling in. Ahem. Not like that. Okay, like that, too.The problems are mounting. The alien abductors are coming back. My fellow human captives are dying as we speak. And the alien hunks? When they claim, it's forever. We've got to decide how to proceed, and soon, because whatever path we choose?There's no turning back... -
![Out of Bight, Out of Mind by Tymber Dalton]()
Out of Bight, Out of Mind by Tymber Dalton
Rated: 4.17 of 5 stars · 6 ratings[Siren Ménage Everlasting: Erotic Futuristic Sci-Fi Ménage a Quatre Romance, M/M/M/F, reverse harem, HEA]Emi Hypatia loves her job exploring the galaxy with her three husbands, Aaron Lucio, Caph Bates, and Ford Caliban. When a nonhuman crewman is temporarily assigned to the Tamora Bight for a mission, Emi hates and mistrusts him at first sight due to what her empath training tells her... -
![Alien Outcast by Tracy St. John]()
Alien Outcast by Tracy St. John
Rated: 4.17 of 5 stars · 6 ratingsShe escaped to Kalquor to warn the empire…but did she bring its destruction instead? When a rogue Kalquorian raider snags a Bi’isil cruiser in Empire space, the outlaw crew is hoping for supplies. Instead, they find a Tragoom and an Earther woman with a dire warning: Bi’is is set to unleash a fatal plague on the Kalquorian Empire... -
![Fits Like a Glove: A Velvet Glove Tale by Sean Michael]()
Fits Like a Glove: A Velvet Glove Tale by Sean Michael
Rated: 4.17 of 5 stars · 6 ratingsHercules is the owner of the Velvet Glove, the premier men's bdsm club in the galaxy. He's made sure to hire the best people for their jobs, from the cleaners to the trainers. It's exclusive, it's hot and it's all his. Malachi is the club's main trainer and an extraordinary top; he was handpicked by Hercules. The man has a secret though, one that Hercules discovers and shares with him... -
-
![Secret Santa Surprise by Evangeline Anderson, MacKenzie Cartwright]()
Secret Santa Surprise by Evangeline Anderson, MacKenzie Cartwright
Rated: 4.17 of 5 stars · 6 ratingsListening Length: 5 hrs and 46 minsSeries: Kindred Tales, Book 29, Brides of the Kindred, Book 25.3One lonely older woman...Two younger warriors who think she’s beautiful...Add some spiked punch and a mix-up with the Secret Santa Gifts,And who knows what might happen? Melanie Jameson is afraid it’s going to be a lonely Christmas... -
![Frrar by Layla Nash, Juno Wells]()
Frrar by Layla Nash, Juno Wells
Rated: 4.17 of 5 stars · 6 ratingsHe's lost in the past.She's lost in the mission.When they're lost in space, will love find them?Maisy Cunningham was the youngest doctor to graduate from the Fleet Academy, but that doesn't stop the rest of the crew from treating her like a helpless little sister... -
![Velvet Glove: Volume V by Sean Michael]()
Velvet Glove: Volume V by Sean Michael
Rated: 4.17 of 5 stars · 6 ratingsThe fifth installment of the Velvet Glove series about an exclusive men's BDSM club, features three works: Three to Heal, Rock Stars and Size Queens and Fits Like a Glove... -
![Surprises by Manna Francis]()
Surprises by Manna Francis
Rated: 4.17 of 5 stars · 6 ratingsAnother short story from The Administration series. Toreth meets Warrick's ex wife and things get even more steamy in the bedroom... -
![Mirror Mirror by Manna Francis]()
Mirror Mirror by Manna Francis
Rated: 4.17 of 5 stars · 6 ratingsAnother short story in The Administration series... -
![All Work And No Play by Manna Francis]()
All Work And No Play by Manna Francis
Rated: 4.17 of 5 stars · 6 ratingsAnother short story in The Administration series.New juniors are coming in at I&I and Warrick is severely distracted by work... -
![Losing It by Manna Francis]()
Losing It by Manna Francis
Rated: 4.17 of 5 stars · 6 ratingsAnother short story in The Administration series.Toreth and Warrick go out to a corporate party. Toreth lets his jealousy rule him... -
![Then And Now by Manna Francis]()
Then And Now by Manna Francis
Rated: 4.17 of 5 stars · 6 ratingsAnother short story in The Administration series.Warrick and Toreth talk about their past... -
![Sunday by Manna Francis]()
Sunday by Manna Francis
Rated: 4.17 of 5 stars · 6 ratingsAnother short story in The Administration series... -
![Taken as His Pet by Sassa Daniels]()
Taken as His Pet by Sassa Daniels
Rated: 4.17 of 5 stars · 6 ratingsDesperate to escape the stifling confines of Earth's repressive society, Lucy Bainbridge has only one hope. She proposes a deal to a warrior of Taar-Breck, promising to serve as his pet in return for passage to his home planet, but when the huge, fiercely handsome alien immediately orders her to strip and kneel at his feet, Lucy wonders if she has gotten herself in way over her head... -
-
![A Perfect Muse by Viola Grace]()
A Perfect Muse by Viola Grace
Rated: 4.17 of 5 stars · 6 ratingsRunning from a broken heart sends her home, but home ends up a thousand worlds away, and she ends up at the mercy of the master of the shattered world.Keva has been having the worst day. She has found out her boyfriend was cheating, gone home to her father’s house, and been teleported across the stars. It has been trying... -
![The Harvest: A Tah'Narian Christmas by M.A. Church]()
The Harvest: A Tah'Narian Christmas by M.A. Church
Rated: 4.13 of 5 stars · 8 ratingsSo what’s an alien to do when his mate refuses to say what’s bothering him? Why, he sends a deep space message to his mate’s mother on earth, what else? Keyno not only learns the importance of Christmas to his chosen, he’s also shocked and confused as to why Dale hasn’t shared this with him... -
![Morax by Kelly Lucille]()
Morax by Kelly Lucille
Rated: 4.13 of 5 stars · 8 ratingsMorax is a Tellox, built for the sole purpose of battle and the hunt. An assassin during the great wars, he has lived most of his life in the shadows. Even among his own kind he is feared.Creeg made a place for him among his chosen men and, along with a handful of others, they have formed the only family Morax has known... -
![Elas by G. Eilsel]()
Elas by G. Eilsel
Rated: 4.38 of 5 stars · 8 ratingsFor almost a century, we’ve believed the prophecy to be a hoax. The promise of Fated Mates being the cure to this ruined world was a beautiful story, a romantic lie told to keep us in line. Nothing more than an idyllic promise to make us work together.Only we never did, and the world only suffered more.Joining the military has turned my life into a monotonous cycle of schedule, routine, and order... -
![Fallen from the Stars by Tiffany Roberts]()
Fallen from the Stars by Tiffany Roberts
Rated: 4.26 of 5 stars · 11 ratingsVasil has spent his life serving the needs of his people, denying his own desires — until a star falls from the sky. He follows its fiery trail and finds the unexpected: a mysterious human female. She is his chance at having the mate, the family for which he’s longed... -
![Kraving Tavak by Zoey Draven]()
Kraving Tavak by Zoey Draven
Rated: 4.24 of 5 stars · 11 ratingsA female is the last thing I want or need.Doesn’t matter if they’re Laoti, or Luxirian, or human….females mean trouble and I’m so vauking tired of trouble.What I want is to spend my days in peace. After years of working in a brothel, of being pawed at and owned and consumed by women, I want to be left alone.Then I see her...
Or - use our amazing romance book finder to get recommendations based on your favorite content tropes and themes. Mix and match at will.
