Ruthless Billionaire, Inexperienced Mistress

Pure and innocent, until her night with the ruthless billionaire...Alli Pierce is desperately seeking her real mother. But hotel magnate Slade Hawkings is convinced she's after his family's money, and that she is nothing but a scheming gold digger!Despite Slade's misgivings, the handsome billionaire can't deny the incredible chemistry between him and Alli. Unaware that Alli is a virgin, Slade makes a proposal that will give them both what they want. He'll help her find what she's looking for—in exchange for one night in his bed.

Alt title: *The Billionaire's Passion* by Robyn Donald
Not to be confused with
*Island of Secrets: The Billionaire's Passion* also by Robyn Donald
Which is a totally diff book with diff characters