Most Popular Adult Books

Single Daddy Shifters #1

Axel

Tasha Black

Fantasy · Paranormal Fantasy · Paranormal Romance · Adult · Shapeshifters

January 1, 2020

Alien Castaways #2

Wingman

Cara Bristol

Science Fiction · Alien Romance · Adult · Romance

October 6, 2020

Alien Castaways #3

Psy

Cara Bristol

Science Fiction · Alien Romance · Adult · Romance

October 25, 2020

Alien Castaways #1

Chameleon

Cara Bristol

Science Fiction · Alien Romance · Adult · Shapeshifters · Romance

September 16, 2020

Xarc'n Warriors

Pursued by the Hunter

Lynnea Lee

Science Fiction · Alien Romance · Dystopia · Fated Mates · Post-Apocalyptic

January 1, 2020

Alien Mate

Alien Mate Complete Series

Cara Bristol

Science Fiction · Alien Romance · Adult · Anthology · Romance

January 31, 2019

Alien Mate #4

Alien Mischief

Cara Bristol

Science Fiction · Alien Romance · Adult · Romance

January 31, 2019

Caveman Aliens #6

Caveman Alien's Secret

Calista Skye

Science Fiction · Alien Romance · Adult · Romance

November 7, 2018

Caveman Aliens #5

Caveman Alien's Trap

Calista Skye

Science Fiction · Alien Romance · Adult · Romance

August 6, 2018

Alien Mate #2

Alien Attraction

Cara Bristol

Science Fiction · Alien Romance · Adult · Romance

May 15, 2018

Alien Mate #3

Alien Intention

Cara Bristol

Science Fiction · Alien Romance · Adult · Romance

July 29, 2018

Alien Mate #1

Alien Mate

Cara Bristol

Science Fiction · Alien Romance · Adult · Romance

April 10, 2017

Fairy Tale Heat #1

Beauty and the Goblin King

Lidiya Foxglove

Fantasy · Fairy Tale Retellings · Paranormal Fantasy · Paranormal Romance · Adult

April 17, 2017

Wild About You #2

Werewolf in the North Woods

Vicki Lewis Thompson

Fantasy · Paranormal Fantasy · Paranormal Romance · Urban Fantasy · Werewolves

October 4, 2011

Babes on Brooms #1

Blonde with a Wand

Vicki Lewis Thompson

Fantasy · Paranormal Fantasy · Paranormal Romance · Witches · Adult

December 22, 2009

Inspector Lynley #1

A Great Deliverance

Elizabeth George

Crime Fiction · Suspense Thriller · Adult · Mystery · Thriller

January 1, 1988

Possessive Monsters #11

Gamble on a Gargoyle

Maggie Mayhem

Fantasy · Dragons · Gargoyle · HEA Ending · Monster Romance

May 1, 2026

Alien Wolf Tales #5

Alien Song

Honey Phillips

Science Fiction · Alien Romance · Fairy Tale Retellings · Adult · Shapeshifters

January 15, 2026

The Oak and Holly Cycle #1

The Wren in the Holly Library

K.A. Linde

Fantasy · Dystopia · Adult

June 4, 2024

Shadow of the Leviathan #2

A Drop of Corruption

Robert Jackson Bennett

Fantasy · Adult · Mystery

April 1, 2025

The Hurricane Wars #1

The Hurricane Wars

Thea Guanzon

Fantasy · New Adult · Adult · Romance

October 3, 2023

Treasured by the Alien #15

Return of the Alien Warrior

Honey Phillips

Science Fiction · Alien Romance · HEA Ending · Adult · Romance

May 24, 2026

Goldie and the Bear Affair

Liana Valerian

Fantasy · Cozy Fantasy · Erotic Romance · Fairy Tale Retellings · Paranormal Fantasy

April 3, 2026

Monster Mercenary Mates #9

Stalked by the Alien Mercenary

Robin O'Connor

Science Fiction · Alien Romance · Cyborg Romance · HEA Ending · Adult

April 14, 2026

Dragons on Mars #2

Ice Dragon's Heart

Honey Phillips

Science Fiction · Alien Romance · Dragons · Forced Proximity · HEA Ending

July 12, 2026

Dragons on Mars #1

Last Dragon on Mars

Honey Phillips

Science Fiction · Cyborg Romance · Dragons · Adult · Shapeshifters

April 26, 2026

The Sultryverse #1

AcClaim

Jean Thesquare

Adult · Romance

September 18, 2025

Whiteout

R. S. Burnett

Science Fiction · Dystopia · Post-Apocalyptic · Adult · Mystery

February 25, 2025

The Men of Orc Mountain #2

Claimed by the Mountain Man Orc

Pippa Rae Brook

Fantasy · Cozy Fantasy · Fated Mates · Instalove Romance · Monster Romance

October 21, 2025

The Men of Orc Mountain #1

Saved by the Mountain Man Orc

Pippa Rae Brook

Fantasy · Cozy Fantasy · Fated Mates · Instalove Romance · Monster Romance

September 23, 2025

Cyborgs on Mars

The Lone Cyborg

Honey Phillips

Science Fiction · Cyborg Romance · Adult · Romance · Western

September 25, 2025

Galaxy Alien Mail Order Brides #7

Eclipse Bound

Michelle M. Pillow

Science Fiction · Alien Romance · Paranormal Romance · Adult · Romance

September 16, 2025

Dragon Brides #11

Rook

Kate Rudolph

Fantasy · Science Fiction · Alien Romance · Dragons · Fated Mates

September 1, 2025

Vaxxlian Alien Mail Order Brides #9

Balarr

Sue Mercury

Science Fiction · Alien Romance · Paranormal Romance · Adult · Novella

October 20, 2025

The Five Kingdoms #5

The Orc's Captive Bride

Honey Phillips

Fantasy · Orc · Adult · Romance

October 23, 2025

Monsters in the Woods

Spooked in the Woods

Annee Jones

Fantasy · Monster Romance · Adult · Romance

September 10, 2025