Myka and the Millionaire (Dark Sin #1) by Alexis Alvarez

Computer expert Myka Thomas is determined to start her own business, and the last thing she needs is a man bossing her around and getting in the way. But Gabriel Chevalier is not just any man, and when the dashing, dominant millionaire makes his interest in her very clear, Myka cannot resist his advances. Stripped bare, spanked soundly, and brought to one shattering climax after another, she soon finds herself both yielding even more completely to his command of her body and even begging shamelessly for more of his masterful lovemaking.

As Myka juggles two demanding jobs, she savors the time she spends in Gabriel’s palatial home. When she is in his presence, surrendering to his firm, loving control seems natural, even when that means submitting to a painful, embarrassing spanking when she has been disobedient. Before she can stop herself, Myka is falling hard for Gabriel, but can she dare to risk giving her heart to a man with so many shadows in his past that there may be no room for her in his future?