Most Popular Adult Books of 2025

Fablewood Monster Mates #3

My Fated Bigfoot Hero

Leela Ash

Fantasy · Bigfoot · Instalove Romance · Monster Romance · Adult

February 3, 2025

Alien Wolf Tales #2

Alien Huntsman

Honey Phillips

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

March 20, 2025

Eastshore Isle #8

My Orc (Secret) Boss

Veronika Kane

Fantasy · Monster Romance · Orc · Paranormal Romance · Adult

February 14, 2025

Sweet Monsters Treats

Bidding on the Orc Outcast

Honey Phillips

Fantasy · Monster Romance · Orc · Adult · Romance

February 24, 2025

Mated to the Monster: Season 3

Can't Get No Satyrfaction

Honey Phillips

Fantasy · Monster Romance · Satyr · Adult · Romance

March 11, 2025

Brides of the Lonesome Creek Orcs

Saddling the Orc Cowboy

Ava Ross

Fantasy · Monster Romance · Orc · Adult · Romance

January 3, 2025

Monster Mercenary Mates #4

Entangled by the Alien Mercenary

Robin O'Connor

Science Fiction · Alien Romance · Monster Romance · Adult · Romance

March 11, 2025

Cursed Kingdoms #2

The Princess and the Orc

Sabrina Silvers

Fantasy · Fairy Tale Retellings · Monster Romance · Orc · Adult

February 25, 2025

Hillcrest Hollow Shifters #2

Bound to the Minotaur

Vala Stone

Fantasy · Fated Mates · Minotaur · Monster Romance · Paranormal Fantasy

May 28, 2025

Serpents of Serant #7

The Naga Princess's Soldier Mate

Robin O'Connor

Science Fiction · Alien Romance · Monster Romance · Naga · Adult

January 14, 2025

Fairhaven Falls #7

Wedding for My Werewolf

Honey Phillips

Fantasy · Monster Romance · Paranormal Fantasy · Paranormal Romance · Werewolves

February 2, 2025

The Age of Blood #2

Lord of Ruin

K. M. Enright

Fantasy · Vampires · Adult

August 12, 2025

The Five Kingdoms #2

The Orc's Promised Bride

Honey Phillips

Fantasy · Orc · Adult · Romance

January 2, 2025

The Oak and Holly Cycle #2

The Robin on the Oak Throne

K.A. Linde

Fantasy · Dystopia · Adult

June 17, 2025

Shadow of the Leviathan #2

A Drop of Corruption

Robert Jackson Bennett

Fantasy · Adult · Mystery

April 1, 2025

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

Alien Abduction #26

Zinnia and the Zombie

Honey Phillips

Science Fiction · Alien Romance · Adult · Romance

September 4, 2025

Alien Abduction #24

Xara and the Xenobeast

Honey Phillips

Science Fiction · Alien Romance · Adult · Romance

July 3, 2025

Galaxy Gladiators Alien Abduction Romance Series #22

Aries

Alana Khan

Science Fiction · Alien Romance · Slow Burn Romance · Adult · Romance

July 27, 2025

Witches and Shifters: Scott Pack #6

His Whispered Witch

Lucy Piper

Fantasy · Fated Mates · Paranormal Fantasy · Paranormal Romance · Romantasy

July 30, 2025

Historical Ever After #1

Sophia White and Her Seven Promises

Anastasia Hayward

Fairy Tale Retellings · Regency · Adult · Retellings · Historical Fiction

March 1, 2025

Monster Mountain Romance #1

Devilishly Hers

Alana Khan

Fantasy · Fated Mates · Jersey Devil · Monster Romance · Slow Burn Romance

June 29, 2025

The Gargoyle Next Door #3

The Gargoyle in the Cathedral

Alina Riley

Fantasy · Gargoyle · Monster Romance · Paranormal Fantasy · Paranormal Romance

March 2, 2025

Twisted Carnival

Ensnared by the Stone Freak

Vala Stone

Fantasy · Fated Mates · Gargoyle · Paranormal Fantasy · Paranormal Romance

February 28, 2025

Xarc'n Warriors #13

Fated to the Hunter

Lynnea Lee

Science Fiction · Alien Romance · Dystopia · Post-Apocalyptic · Adult

September 25, 2025

The Five Kingdoms #3

The Orc's Bonded Bride

Honey Phillips

Fantasy · Orc · Adult · Romance

April 3, 2025

Season of the Witch #4

The Witch's Spell

Emberly Wyndham

Fantasy · Paranormal Romance · Witches · Adult · Winter Fiction

April 4, 2025