Books like 'Unnatural Selection'

Readers who enjoyed Unnatural Selection by Amanda Milo also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.

sc-fi  romance  military, war & conflict  aliens  reverse-harem  dark  steamy  enemies-to-lovers  alpha-mc  captivity 

  • Three Babies and the Alien Warrior by Honey Phillips

    Three Babies and the Alien Warrior by Honey Phillips

    Rated: 4.46 of 5 stars
    · 13 ratings
    Can a jaded alien warrior redeem himself in order to protect the woman and children who need him? After a painful divorce, Linda takes a job as the chief administrator of a rural hospital. Her hard won peace is shattered when strange black-suited men raid the maternity ward and she finds herself on board an alien spaceship...
    Categorized as:
    aliens  slavery  alpha-mc  humor  steamy  first-contact  invasion  dark
  • The Strip Down by Honey Phillips

    The Strip Down by Honey Phillips

    Rated: 4.50 of 5 stars
    · 10 ratings
    Can Amanda discover the secrets behind an alien ruin? And the mysterious alien with the haunted eyes?Amanda is happy with her life as an elementary school teacher - and making plans to expand her family. Waking up naked and alone on an alien planet is not on her schedule.Desperate to return to Earth, she reluctantly accepts the help of the massive alien who appears out of the sands...
  • A Family for the Alien Warrior by Honey Phillips, Bex McLynn

    A Family for the Alien Warrior by Honey Phillips, Bex McLynn

    Rated: 4.44 of 5 stars
    · 26 ratings
    A grumpy alien warrior. A pregnant librarian. A ready-made family?Wanda has never hankered after excitement - or romance. A quiet life as a small town librarian suits her just fine. But while she doesn’t need a man, she does want a child. Just as her hard-earned dreams come true, she is abducted by aliens...
    Categorized as:
    aliens  alpha-mc  dark  first-contact  invasion  slavery  steamy  adult
  • Kate and the Kraken: A SciFi Alien Romance by Honey Phillips

    Kate and the Kraken: A SciFi Alien Romance by Honey Phillips

    Rated: 4.42 of 5 stars
    · 12 ratings
    A rebellious alien prince. An overworked human female. A planet in crisis.Kate spends most of her time in her lab, and as much as she believes in her job, she occasionally longs for a break. Being captured by aliens isn’t exactly what she had in mind.Neither is being forced to abandon ship and almost drowning in an alien ocean...
    Categorized as:
    aliens  alpha-mc  dark  first-contact  invasion  slavery  steamy  adult
  • Drakkar by Honey Phillips

    Drakkar by Honey Phillips

    Rated: 4.38 of 5 stars
    · 13 ratings
    Can a vulnerable human become a dragon warrior’s greatest treasure?For generations, Drakkar’s people have chosen to live alone, only coming together for brief periods, but when he joins the battle raging across his home planet, he finds an unexpected family in a set of misfit warriors. After the war ends, he chooses to cut all ties to his past and accompany his new brothers to a backwater planet...
  • A Home for the Alien Warrior by Honey Phillips, Bex McLynn

    A Home for the Alien Warrior by Honey Phillips, Bex McLynn

    Rated: 4.51 of 5 stars
    · 19 ratings
    Can a lonely alien warrior find the family he’s always wanted?When tragedy shatters Claire’s world, she abandons her corporate job and retreats to a remote mountain town. Just when she finally begins to rebuild her life, she is abducted by alien slavers.Unable to escape the scientist who purchases her, she devotes herself to the young alien twins who are also trapped by his twisted experiments...
  • Alien Most Wanted: Mastermind by Honey Phillips

    Alien Most Wanted: Mastermind by Honey Phillips

    Rated: 4.50 of 5 stars
    · 8 ratings
    Can an icy alien warrior save the woman who finally thaws his frozen heart?Sophie’s life is a mess. She’s broke and on the verge of losing her home. Her former lover - and former boss - wants nothing to do with her or the child growing inside her.Just when she thinks life can’t get much worse, she’s kidnapped and transported to an alien prison...
    Categorized as:
    aliens  alpha-mc  first-contact  invasion  slavery  steamy  adult  book
  • Alien Most Wanted: Unchained by Honey Phillips

    Alien Most Wanted: Unchained by Honey Phillips

    Rated: 4.50 of 5 stars
    · 8 ratings
    Can an alien warrior reap his revenge without losing the woman he loves?A debilitating medical condition has taught Marcy to live her life within carefully maintained boundaries. The one time she allows herself to test those boundaries, she is abducted and taken away from her restricted life.But being thrown into a dark alien prison cell isn’t the worst thing that could happen to her...
  • Flame by Tana Stone

    Flame by Tana Stone

    Rated: 4.50 of 5 stars
    · 8 ratings
    The only thing worse than always being upstaged by your perfect sister? Falling for her alien fiancé.I wasn’t supposed to end up on the Drexian space station or be matched to one of their gorgeous warriors as a tribute bride. My perfect twin sister is the one they wanted. Instead, I stole her spot...
  • Craved by the Alien Lord by Ella Blake

    Craved by the Alien Lord by Ella Blake

    Rated: 4.40 of 5 stars
    · 10 ratings
    RaynaIf one male remained alive in the universe, and that male was Lord Ledos, I’d let both of our species die out. He looks like a rock star, swaggers like the galaxy’s greatest gift swings between his leather-clad legs. He’s a force of nature. I’m a wallflower. We couldn’t be more opposite...
  • Blaze by Tana Stone

    Blaze by Tana Stone

    Rated: 4.40 of 5 stars
    · 10 ratings
    I swore to myself that I’d never fall for an alien warrior. Now my life depends on trusting a Drexian I’d hoped to never see again.I was coming on board the Drexian space station to attend my cousin’s wedding. That was it. Despite every other woman on Earth falling all over themselves for one of the tough aliens, I wasn’t interested. Not even a little bit...
  • Endark by Honey Phillips

    Endark by Honey Phillips

    Rated: 4.31 of 5 stars
    · 13 ratings
    Can a determined human bride save an alien shifter from his beast?Half human and half Vultor - and rejected by both - Endark has lived his life alone. The only family he knows is the one he has formed with his warrior brothers. But even that bond is not enough to save him from his father’s cruel legacy. His only hope is a mate who will calm his inner beast...
  • Alien Hunter's Fate by Ava Ross

    Alien Hunter's Fate by Ava Ross

    Rated: 4.50 of 5 stars
    · 6 ratings
    An alien insists I’m his fated mate. After we escape a deadly alien game called the labyrinth, he says he’s keeping me. This deal was supposed to be simple. Take a shuttle to the space station. Connect with an alien in need of Slaking—their term, not mine. One week between the furs with no hearts involved, something I’m determined to avoid after being burned...
  • Alien Pirate's Plunder by Ava Ross

    Alien Pirate's Plunder by Ava Ross

    Rated: 4.50 of 5 stars
    · 6 ratings
    An alien pirate promises to give me a child. But what if he steals my heart?Aliens are real and they’re eager to Slake. What’s Slaking, you ask? It seems Xilan males go into a voracious heat period every three years, and there aren’t enough females to fulfill the needs of these beastly aliens. Enter me and other Earth females eager to have children...
  • A Gift for the Alien Warrior by Honey Phillips

    A Gift for the Alien Warrior by Honey Phillips

    Rated: 4.50 of 5 stars
    · 6 ratings
    Can a forgotten alien warrior protect his newfound family?Taranov spent years doing his duty before finally escaping his dying planet. His new life as a trader is calm, peaceful… and empty. Then he stumbles upon an abandoned ship, a helpless infant, and a beautiful female who can’t even remember her name. His instincts demand that he protect them, but his heart wants so much more...
    Categorized as:
    aliens  alpha-mc  dark  first-contact  invasion  slavery  steamy  adult
  • Dragon's Isolation by Miranda Martin

    Dragon's Isolation by Miranda Martin

    Rated: 4.50 of 5 stars
    · 6 ratings
    I've lost my happily ever after...My story was supposed to be over. We were supposed to grow old together in each other's arms and watch our tiny son become a man with a life of his own.The Zmaj, seven foot tall winged and scaled dragon warriors, are getting sick. It's stealing their memories and making them regress into primal barbarians, losing themselves completely...
  • The Start of Time by Marilyn Foxworthy

    The Start of Time by Marilyn Foxworthy

    Rated: 4.50 of 5 stars
    · 6 ratings
    It was my second day on the ‘Red Planet’. Today I’d better find water. That had been the instructions in the box: learn to walk; find Water; make a weapon; find a nice Martian girl to teach you to speak the language. I figured that finding food would be a good idea too. It wasn’t exactly like I had expected, but how could it be? I had followed an unbelievable path to an unbelievable destination...
  • Caveman Alien’s Cage by Calista Skye

    Caveman Alien’s Cage by Calista Skye

    Rated: 4.50 of 5 stars
    · 6 ratings
    He tied me up and put me in a cage. I should hate him.So why can’t I look away from his twitching pants?Morfan’ox is the most striking warrior in his caveman tribe.Supremely confident, eight feet tall, with bright green stripes and muscles from here to Earth, he moves like he owns this deadly alien jungle.I’ve barely talked to him, but he’s always on my mind.But his tribe and mine are enemies...
  • The Alien Tyrant's Conquest by Bella Blair

    The Alien Tyrant's Conquest by Bella Blair

    Rated: 4.50 of 5 stars
    · 6 ratings
    I can offer her a queenship, but not my heart, still, I need her to be MINE.AUDRA: I knew pissing my boss off was a bad idea. But I didn't know how bad until I am sent to The Tribulations to become fodder for the contestants. Resigned to my fate, I can hardly believe it when this golden god appears from out of nowhere to save me...
  • I Married A Dryad by Regine Abel

    I Married A Dryad by Regine Abel

    Rated: 4.43 of 5 stars
    · 7 ratings
    He was her perfect match.Fed up with the deadbeats and jerks infesting the standard dating pool, Maeve reaches out to the Prime Mating Agency, hoping to improve her luck. Her fear of ending up with some weird primitive alien is immediately alleviated when she’s paired with a stunning Edocit...
  • Alien Savage's Stolen Bride by Juno Wells

    Alien Savage's Stolen Bride by Juno Wells

    Rated: 4.38 of 5 stars
    · 8 ratings
    Rebecca While fleeing a dying Earth I've endured cold, hunger and thirst. The one bright spot in my nightmare is my friend and fellow red-head, Willow. I've never had a friend like her before, one who I'd do anything for and she'd do the same for me. We're traveling to the Draconian home-world to accept an offer of sanctuary. Of course nothing in the universe is free...
  • Ensnared by the Alien Lord by Ella Blake

    Ensnared by the Alien Lord by Ella Blake

    Rated: 4.38 of 5 stars
    · 8 ratings
    ScaronI go out on a hunting expedition and what do I return with? An alien female. I’d toss her out, but…she’s absurdly appealing to me. The longer I allow her to live on my ship, the less I want to kill her. With a looming showdown against our enemy to prepare for, the last thing I need is a female distracting me, but I cannot stay away and I would kill to protect her...
  • Tordan by Jennifer Julie Miller

    Tordan by Jennifer Julie Miller

    Rated: 4.38 of 5 stars
    · 8 ratings
    LunaThey stole my dreams, my hopes, my very identity, and I had no idea. Years went by and I did everything I was told, I was always the perfect specimen, and the perfect lab rat. I was dissected, even maimed all in the name of science. Then one day a strange smoky voice entered my head, and I knew things were not as they seemed...
  • Izzie and the Icebeast by Honey Phillips

    Izzie and the Icebeast by Honey Phillips

    Rated: 4.30 of 5 stars
    · 10 ratings
    A jaded alien gladiator. A heroine who won’t give in. A battle worth winning.After a fatal mistake drives Baralt away from his world, he has to rely on his fighting skills to survive. Despite his success in the arena, he grows increasingly tired of violence - until a soft, beautiful human female gives him a reason to fight...
    Categorized as:
    aliens  alpha-mc  dark  first-contact  invasion  slavery  steamy  abuse
  • Alien Alliance by Honey Phillips

    Alien Alliance by Honey Phillips

    Rated: 4.30 of 5 stars
    · 10 ratings
    Lizabet always knew she wanted an alien warrior of her own, but can she handle two of them?Tired of waiting for T'kol to decide she's ready, Lizabet is determined to move on with her life and leave the massive horned warrior behind. However, an unexpected blizzard and a wrecked alien flyer alter more than her destination...
  • Consumed by Presley Hall

    Consumed by Presley Hall

    Rated: 4.30 of 5 stars
    · 10 ratings
    All I wanted was one hot night with an alien gladiator…Ever since the Kalixian warriors rescued us from our Orkun captors, I’ve made no secret of the fact that I think these bronze, horned aliens are hot as hell.I have no interest in the whole “fated mate” thing, but I definitely wouldn’t mind a roll in the sheets with any of these men.Well… one man, if I’m being honest.Tycran...
  • Chained to the Stryxian by Ella Blake

    Chained to the Stryxian by Ella Blake

    Rated: 4.30 of 5 stars
    · 10 ratings
    Arus Bor'vak understands machines better than people. He likes them better, too, so when human women begin to populate the Stryxian settlements, he finds it best to give them a wide berth. They’re beautiful, soft, and utterly incomprehensible, and none captures his attention like Keira Becker, the strong ex-lieutenant who makes him lose his tongue in her presence...
  • Rita and the Raider by Honey Phillips

    Rita and the Raider by Honey Phillips

    Rated: 4.30 of 5 stars
    · 10 ratings
    Every good mating begins with a kidnapping… Worvak was taught to value honor above all else. When his honor demanded he sacrifice everything to save a friend, he didn't hesitate. But then a dangerous mission leads him to a fragile, dirty female with enough courage for ten warriors - a female he would do anything to call his own. For the first time in his life, his honor and his heart are at war...
  • Provoked by Tana Stone

    Provoked by Tana Stone

    Rated: 4.45 of 5 stars
    · 15 ratings
    I snuck onto the wrong ship. Now I’m at the mercy of the most terrifying and deadly of the Vandar warlords—and he refuses to let me go.Running away and joining my sister and her Vandar mate seemed like a great idea. Until I stowed away on the wrong ship.Now I’m on a Vandar warbird flying far away from my home planet, but my sister is nowhere in sight...
  • The Buff Beast by Honey Phillips

    The Buff Beast by Honey Phillips

    Rated: 4.25 of 5 stars
    · 12 ratings
    Can Mina survive the icy cold of an alien winter? And melt the heart of the hardened alien warrior who rescues her?Her home. Her job. In a few short months, Mina has lost everything, including hope. Freezing and alone on a winter night, she isn't sure if she will make it to the next day. Or even if it matters.She wakes up to find herself naked and freezing, but no longer alone...
  • Escaping Fate by Regine Abel

    Escaping Fate by Regine Abel

    Rated: 4.25 of 5 stars
    · 12 ratings
    Enslaved. Exploited. Hunted.Born and raised on a slavers ship, Amalia is one of the rare survivors of the Veredian race. Like all Veredian females, Amalia possesses a unique psi ability which makes her the prized pet of her master Gruuk. She escapes to Xelix Prime, a warrior planet where slavery is prohibited...
  • Lily and the Lion by Honey Phillips

    Lily and the Lion by Honey Phillips

    Rated: 4.39 of 5 stars
    · 16 ratings
    A wealthy, bored alien. A fierce, unlucky woman. A primitive hunting planet. Let the games begin!Lily has never been lucky - not with jobs, not with money, and certainly not with men. Her bad luck continues when she is first abducted by aliens, then shoved into an escape pod and abandoned on a jungle planet.The enormous, and admittedly gorgeous, alien who finds her seems as much beast as man...
    Categorized as:
    aliens  alpha-mc  dark  first-contact  invasion  slavery  steamy  adult
  • Bound by Tana Stone

    Bound by Tana Stone

    Rated: 4.44 of 5 stars
    · 13 ratings
    She’s been given a choice. Mate with the part-cyborg alien who abducted her. Or die. For Shreya, taking an alien for a mate was never in the cards. As one of the human women who rejected the idea of being a tribute bride to the Drexian warriors, she was just fine without a big, hulking alien. Even if they are gorgeous...
  • Tempted by an Alien Warlord by Ava Ross

    Tempted by an Alien Warlord by Ava Ross

    Rated: 4.50 of 5 stars
    · 11 ratings
    She hates him (not really). He hates her (not really?). But when she's kidnapped by the duskhorde, he mounts a bold rescue, only to be captured himself. Can they escape and find true love together?Zetar: After losing my mate to the disease, I promised never to love another. Then I meet Josie. She’s full of fire, and she tests my patience...
  • Ull by M.K. Eidem

    Ull by M.K. Eidem

    Rated: 4.24 of 5 stars
    · 24 ratings
    Ull Rigel is a fit and worthy Tornian warrior, the first male of a powerful and respected Lord. Because of this, he'd always believed he'd be able to attract a female, securing his bloodline. But he hadn't. He hadn't even been able to attract one of the Earth females they'd discovered. But his younger brother, a third male, did...
  • Warrior's Pain by Stephanie West

    Warrior's Pain by Stephanie West

    Rated: 4.33 of 5 stars
    · 6 ratings
    Riley was sick of constantly getting the short end of the stick. If it wasn’t enough that she’d been sent to prison for her brother’s crimes, then got abducted by aliens; being hauled onto the auction block certainly took the cake.“You know what, fine, bring it on!”Unwittingly, Riley goaded Fate into throwing everything it could at her, and it did...
  • Flying in Spaceships with Aliens by Erin Raegan

    Flying in Spaceships with Aliens by Erin Raegan

    Rated: 4.33 of 5 stars
    · 6 ratings
    I once had what I thought were small dreams. Dreams that I was never sure if I would have the chance to pursue. Even so, I had been content. Happy. Or so I thought.All that changed when Killian entered my life. But just as quickly as he lifted me up, he shoved me down so far I didn’t think I would ever have the strength to find myself again...
  • Drex by Ella Blake

    Drex by Ella Blake

    Rated: 4.33 of 5 stars
    · 6 ratings
    Madison McGurdy didn’t enter herself into the selection process to become mistress to a powerful Virilian male for the money. She did it to escape. When your obsessed ex is one of the most ruthless men in the world and there’s no place on Earth to hide from him (because you’ve tried), going to a faraway planet sounds like an adventure and a chance for a fresh start...
    Categorized as:
    aliens  first-contact  humor  invasion  steamy  adult  book  fiction
  • Scorched by Heather Fox

    Scorched by Heather Fox

    Rated: 4.33 of 5 stars
    · 6 ratings
    Rachel: Mama always said that when I open my mouth, stupid comes out. I guess that's why instead of telling Grace the real reason I'm at the medical hut, I tell her I want to train to be a healer. It's not so bad, though. It's nice to give something back to the tribe, and also, it means I get to care for injured warrior Vantos...
  • Callim's Challenge by Pearl Tate

    Callim's Challenge by Pearl Tate

    Rated: 4.33 of 5 stars
    · 6 ratings
    Shelly... Abducted from Earth, contracting a deadly disease, getting matched up to an alien I’ve never met… welcome to the chaos that’s my life. Now, I’m on a spaceship travelling to Quasar, to get the vaccine that I need to survive and meet my future mate! I’m used to being at the mercy of others. First, it was my drug-addicted mother and eventually the foster care system...
  • Ravaged by L.V. Lane

    Ravaged by L.V. Lane

    Rated: 4.33 of 5 stars
    · 6 ratings
    Fierce, untamed, and brutal, Quin, the alien ravager, is all these things and more.The kind of alien that wants to claim me and make me into his pet.One small problem, he's not real. He's a character in a book.None of this matters anymore, for the lines have gotten blurred. I need to be protected, and my fierce alien ravager is going to protect me...
    Categorized as:
    aliens  steamy  dark  humor  invasion  first-contact  romance  fantasy
  • Nkarri by Annabelle Rex

    Nkarri by Annabelle Rex

    Rated: 4.33 of 5 stars
    · 6 ratings
    It was as if his focus narrowed, the rest of the people in the room fading out as he took her in...Jas has spent years regrowing her confidence after getting burned by her ex. Now she has great friends, a beautiful home and a successful career - everything she thought she needed...
  • Raith by Annabelle Rex

    Raith by Annabelle Rex

    Rated: 4.33 of 5 stars
    · 6 ratings
    If he suggested it, she was absolutely going to unwrap him like a Christmas present.Mia made a promise to always attend her family’s Christmas ‘gathering’. Hard to call it a party when they’re about as much fun as a funeral. It’s the same thing every year...
  • Charlie's Order by Miranda Martin

    Charlie's Order by Miranda Martin

    Rated: 4.33 of 5 stars
    · 6 ratings
    He's a member of the enemy Order, but his dragon staked its claim and he killed a Brother to defend me...CharlieI’m a scientist. Logic has always gotten me through, but there's no logic to love. Lusting over the alpha, domineering alien dragon man, sure, makes sense. But instant love? Fated mates? Impossible.Besides, he’s a member of the evil Order...
  • Rescued by the Zandian by Renee Rose, Rebel West

    Rescued by the Zandian by Renee Rose, Rebel West

    Rated: 4.33 of 5 stars
    · 6 ratings
    Humans lie. I learned that lesson once before.I thought I found a mate, but she betrayed us all.I won't let that happen again.Not even when I find Sia and four other females nearly dead on a defunct planet.Not when the lovely female is remanded to my custody.She's not being honest about what she knows.But with a little pressure, a little punishment, I might get her to talk.Teach her to obey...
  • Cheating in the Alien Bride Lottery by Margo Bond Collins

    Cheating in the Alien Bride Lottery by Margo Bond Collins

    Rated: 4.33 of 5 stars
    · 6 ratings
    I have no desire to join the Alien Bride Lottery.But even more than that, I don't want my parents to choose a husband for me. And that's what will happen if I stay on Earth.So I make a deal with them: if I go to Station 21 and don't get chosen by a Khanavai male, I will come home and allow them to plan the rest of my life...
  • Asia's Fate by Miranda Martin

    Asia's Fate by Miranda Martin

    Rated: 4.33 of 5 stars
    · 6 ratings
    There's an old saying that no plan survives contact with the enemy. But what if the enemy is your fated mate?AsiaFalling in love wasn’t part of the plan.I was supposed to be "captured", gather intel from the inside, then be rescued and returned to safety.But the moment I saw the enormous, electric blue scaled alien dragon warrior, my heart leapt into my throat...
  • Allie's Match by Miranda Martin

    Allie's Match by Miranda Martin

    Rated: 4.33 of 5 stars
    · 6 ratings
    AllieI know Balan is 'the one' the instant we meet. It's hard to miss my breath catching in my throat, my heart galloping out of my chest, and my stomach deciding it's a gymnast. It's either love at first sight, or maybe I'm just dying.That's what it feels like when the new chisel featured Zmaj with a panty melting physique shows up and proceeds to completely ignore me...
  • Belle's Knight in Shining Armor by Miranda Martin

    Belle's Knight in Shining Armor by Miranda Martin

    Rated: 4.33 of 5 stars
    · 6 ratings
    Bahr is my happily ever after.The seven feet tall, Adonis built alien Zmaj men know the moment they set eyes on someone that they're their one true pairing. Or that’s the way it’s supposed to work. And I’m all in.The human survivors have a simple plan to escape from the evil of the Order to a new home. Lucky for me, I get to travel with Bahr...
  • The Consul's Taming by Bella Blair

    The Consul's Taming by Bella Blair

    Rated: 4.33 of 5 stars
    · 6 ratings
    So many females to choose from… but I only want HER!Selena: The Lord Consul Garrath Ryx is the greatest lecher in the universe, and I despise him with all my heart. Unfortunately, he is also the one person I need to persuade to champion Earth if we humans want to survive. When I finally meet him face to face, I am entirely unprepared for his all-consuming persona, his charm, and good looks...
Fantastic book recommendations by book lovers for book lovers.
Find out more about thebooknaut.com.



Looking for more inspiration? Enter another book title to get more suggestions on what to read next.


Or - use our amazing romance book finder to get recommendations based on your favorite content tropes and themes. Mix and match at will.