Which Kindle Unlimited Sci Fi Books Focus On Hard Science Themes?

THIS BOOK CONTAINS EXPLICIT SEXUAL CONTENT and is rated 18+ . Forbidden dreams is a collection of fast paced, drama filled, pleasure stimulating stories that ignites that spark and passion for sinful desires that knows no bounds. Get to read stories in your favourite genres—billionaire, mafia, werewolf, fantasy, college sports, age gap, forbidden love, M×M, fetishes, and more.

No safe words. No limits. Just raw, wicked pleasure. Step into a world where boundaries don’t exist, only desire does. This collection of scorching short stories takes you from moonlit rooftops to steamy locker rooms, from public restrooms to private fantasies. Threesomes, breath play, BDSM, and irresistible encounters collide in explosive tales that promise to leave you breathless. Whether it’s a secret tryst with an ex lover, a scandalous game with an athlete, or a lust-fueled session in zero gravity, a fuck by the pool, each story delivers unfiltered, unrelenting heat. Wild. Wet. Wanton. You’ve never read sin like this before. If you’re not dripping by the end of each tale, check your pulse. Content Warning: This book is dark, raw, and unapologetically explicit. It explores the deepest, most tantalizing corners of desire, pushing boundaries and playing with power. For those ready to indulge in their darkest fantasies. If you know you don’t have a partner, don’t read. Haha, just kidding. It’s for everyone above or at 18 years of age. It will leave you hot and bothered, craving sinful things.

Megan Harding has just landed her dream job on the Elite space station, but her dreams quickly turn to disaster when gravity pulls her in crash landing into the King of Altundral's spacecraft, where she finds herself falling for the handsome Alien king Halturian.Can Megan save the Altundral people from extinction? Will the universe bring them together to save his people?

5 Age-Gap MM Forbidden Romances- Ever fantasize about a battle-hardened Alpha King spotting your scent in the shadows until you’re whimpering for his mark? Feel the Lycan Daddy’s touch tracing your spine post-shift, growling how he’ll own you forever. The Bratva CEO in the boardroom with you. High-ranking professors rob secrets from trembling omegas. Step-dads date their step-sons on midnight. Rival Silver Fox Alphas collapsing decades of territory war into knotting ecstasy. These Daddies devour minds, leaving you psychologically chained, leaking. Raw power imbalances. Psychological grooming into feral bliss.

This collection is designed for adults only—a series of intense, provocative stories exploring desire, power, and surrender. Each story dives into forbidden connections and high-intensity dynamics where control is tested, boundaries are blurred, and temptation takes over completely. From dominant partners who demand obedience, to willing participants discovering their deepest desires, every encounter is charged with tension and emotional intensity. These are stories of obsession, submission, and overwhelming chemistry—where resistance fades and desire takes the lead.

In a world where the moon shattered and the strong devoured the weak, Neoma Solstice is nothing. A scentless Null. A ghost. A mistake. Until the day she saves a dying Lycan warrior with a touch, and her secret is revealed: she's Void-Born, the rarest mutation in existence. The same power that makes her invisible makes her invaluable—a living weapon that can cure the incurable Feral Rot plaguing the Lycan Ascendancy. Captured and collared, Neoma is forced to serve as "Tether" to Unit Vanguard: four elite soldiers on the brink of madness. Barzil, the ruthless Commander who sees her as a mission. Wolfy, the cold Tactician who sees her as a puzzle. Viggo, the feral Berserker who sees her as salvation. Guller, the fallen Priest who sees her as redemption. They own her contract. They control her life. They swear she's just a tool. But tools don't make their masters kneel. As Neoma's power grows, so does the threat she poses to the regime that enslaved her. When the prophesied Blood Moon rises, she'll have to choose: remain the Ascendancy's battery, or become the Void that devours them whole. Some bonds are forged in blood. Some in magic. Theirs was forged in desperation—and it might be the only thing strong enough to save a dying world. The Obsidian Covenant is a dark dystopian reverse harem romance featuring a morally gray FMC, four obsessive MLs, found family dynamics, enemies-to-lovers, rejected mate redemption, and a slow-burn that explodes into high heat. Perfect for fans of The Cruel Prince meets Den of Vipers in a post-apocalyptic wasteland. No choosing. No apologies. No mercy.