What Long-Running Sci Fi Novel Series Are Written Specifically For Adults?

WARNING ⚠️ This series are meant for 18+ and above. It contains Deliciously dark erotic tales of total surrender. “where Forbidden desires have no limits—priests fall, stepbrothers claim, women claimed and professors own. Thirty-five filthy and erotic stories. Zero mercy.”

WARNING: THIS SERIES IS STRICTLY FOR ADULTS (18+). Step into a world where every fantasy is explored and no desire is too forbidden. This collection of scorching short stories dives deep into raw passion, taboo cravings, and the kind of encounters that blur the line between temptation and surrender. From intoxicating age-gap romances that burn with forbidden heat, to sultry girl-on-girl (GG) affairs dripping with desire, to explosive man-on-man (MM) connections that set the pages on fire — and many more sinful delights waiting to be discovered. Each story is designed to push boundaries, awaken hidden desires, and leave you breathless for more. If you’re ready to indulge in the wild, the daring, and the downright irresistible… this series is your guilty pleasure.

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.

Seven Classic Faery Tales are given a very adult makeover. You are entering a world of myth, magic, and Immortals. Throw in the humans for the added spice of erotica and violence. Mix together and you have dark adult faery tales ........ Do not read if easily offended!

Beyond Earth, there is an alien species known as the Dagerstanteens. These mighty warriors are wise, strong, and powerful. Unfortunately, they're dying out slowly. Just as the royal family accepts that they will be the last, a new hope arises. Humans. As each of these aliens discovers love, humans will sacrifice much, and both worlds will change forever.This story contains graphic sex, violence, non-consent, and erotic scenes with tentacles. 18+The Alien Love Series is created by C.M. Moore, an eGlobal Creative Publishing Signed Author.

The Saga Series is a nine book series. I was born to die... But to defy fate is to control your own destiny. Little did I know that I was entering a world of ritual and magic and that my blood needed to be spilled so the witches legacy could be complete. Vampires . Witches, werewolves. Supernatural creatures. Dramatic revelations. A ritual sacrifice. Ancient Artifacts. A cold hearted killer . Spilled blood. Secrets. A hidden heritage. A love so deep. Supernatural bloodlust. A dangerous curse. An uneasy alliance with a dangerous vampire. Legends of vampires and shape shifters have been around for centuries so Taylor Sparks isn't too worried when the rumors start to fly. When Taylor learns secrets that are beyond terrifying,the threaten to destroy her entire world. She is born to die...But to defy fate is to control your own destiny. She warns her crush to leave. But how do you forget someone who is aligned with your soul? The fight against the witches,the vampires and the werewolves. They know the risk. But they don't care. Nothing will get in the way of these two stars. Crossed lovers. Taylor finds out she's A KEY player in a dangerous game created 1000 years ago that will give the witches and werewolves the upper hand against the vampires. Blood will be spilled and secrets will be revealed in this action packed thrill ride. Will she accept her destiny??