The Billionaire's Virgin Mistress: Harlequin comics

The orphaned Tess is told that she is to inherit her long-lost grandfather Dell Lorimer's fortune by his current heir, Cade. Her father was a junkie, and she doesn't want to remember him! So Tess refuses to cooperate, but is moved by Cade's serious eyes and Dell's honest heart. Tess accepts the offer and tours the Lorimer family business, growing more and more attracted to Cade until...