Books like A Suitable Mistress by Cathy Williams

Vivien leaves her billionaire Italian husband Lucca after suspecting an affair, but when she learns he may be innocent, she confronts him to reclaim their marriage—for the sake of their unborn child—and faces a surprising ultimatum: Lucca will bring her back only as his mistress.

A daring 36‑year‑old millionaire, James Dalgleish, believes he controls everything—until a new 26‑year‑old neighbor, Sara King, challenges his dominance with her fierce independence and hidden motives.

Molly and Sholto, a marriage on the rocks, struggle to reconcile their broken hearts after their wedding day separation.

Lisa is drawn into a glamorous jet‑set world when she becomes the accidental mistress of playboy Angus Hamilton, only to discover she's pregnant and that the effervescent male may be ready for a different kind of life.

Rachel’s innocent offer to help Matthew Riordan after a party turns into a tangled web of blackmail, business competition, and unexpected desire, leaving both to confront whether romance or revenge will win.

Four young London ladies employ wit and charm to secure husbands. When a beautiful and daring Annabelle Peyton attracts the powerful Simon Hunt, she must navigate seduction, friendship, and desire on one unforgettable summer night.

In the chaotic days before Waterloo, Louisa Varley is left penniless and abandoned, forced to become an actress. After the battle, she returns to England, where she is bound to Lord Lyston, who will do anything to win her over, but she refuses him.

Convenient Bride for the King is a romance novel by Kelly Hunter that explores themes of love, duty, and destiny within a fictional setting.

When the soothsayer warned Leilani Howe that a tall blond haole would soon invade her Hawaiian paradise - and her heart - bringing passion yet leaving behind pain, Lei planned to stand her ground and solidly defy fate. But the moment her company's temporary troubleshooter stepped onto the island, the very earth seemed to tremble beneath her feet, and her heart quaked in recognition of her nemesis. Instantly she knew she would have to draw deeply on her inner strength, rally her staunchest defenses, to deny the precarious destiny that beckoned so seductively. For Paul Lindstrom's sensual heat rivaled the tropical sun, and she didn't need a prophecy to tell her that he planned to make her his...

When a brief affair turns into a business partnership, a young designer must navigate love, ambition and a demanding millionaire in "The Rich Man's Mistress."

Natalia lives next to the strong, protective Clay, but she resists his advances. When he rushes to her rescue, his kindness changes her heart—yet she wonders whether a life as his mistress is enough or if she can win his marriage.

185, 184, 188 pages ; 18 cm

A contemporary romance in which a woman must navigate her growing relationship with a powerful and demanding lover.

A tale of forbidden love and political intrigue in 19th-century France, blending historical fiction and erotic romance with a touch of psychic vision for Elza, the French mistress of a French commander and the main character’s love story with Napoleon Bonaparte.

After a brief decline, Italian millionaire Angelo Falcone forces a reluctant model, Francesca Hayley, into a permanent affair—now pregnancy intensifies his obsession.

He yelled, and took a breath, standing with his face no more than a foot from hers, seeing the ugly distortion of her features and knowing that his own must be equally twisted and stiff. She hit him then, an openhanded swinging blow that caught him on the cheekbone. Instantly his own hand moved in reflex. He saw her head rock, watched her stagger off balance, sit down on the edge of the divan, and then skid off to the floor. For a long and silent moment he stared down at her, horrified. Then he wheeled and started out the door as she found her voice. When Rick Sheridan came back, he thought the room was empty. Then he saw the crumpled figure on the floor. The two years that he and his wife had been separated had cooled even whatever feelings had once existed. She had been a problem for so long. And now, now, she was to remain a problem. The slowly dawning knowledge that there had been other men in her life was the only clue Rick had to follow. With which one had she been the impetuous—and dangerous mistress?

"I have returned, Isobel, and this time I am calling the shots!" Ruthless, sophisticated Lorenzo Cicolla had one single, dramatic goal—revenge! Isobel had betrayed him once, and now it was her turn to pay…. But what Lorenzo didn't know was that she'd already paid, in heartache and tears. A cruel vendetta against her father had forced her to sacrifice the one true love of her life…Lorenzo. Now he was back—and somehow Isobel had to persuade Lorenzo that she wasn't his enemy…she was the bride of his dreams!

A ruthless CEO uses a mysterious woman to secure his sister’s freedom and uncover a hidden truth, only to discover that the woman’s allure turns the tables on him.