Her Billionaire Boyfriend by Abigail Barnette

One week isn’t enough. He wants forever.

As the billionaire owner of Ascend Red, an exclusive island resort for kinky, hand-selected clientele, Matthew Ashe prides himself on making fantasies come true. When Charlotte Holmes walked into his life, she quickly became his fantasy. But now, their stay is almost over, and their future is waiting.
Charlotte knows that she’ll have to adapt to Matt’s life of luxury, but she doesn’t expect to be thrown into the deep end quite so soon. A weekend party at his family’s estate gives Charlotte a taste of how the exceptionally wealthy live—and highlights just how different she and Matt are, despite their scorching compatibility in bed.
When they stumble into a family secret, Matt and Charlotte are forced to confront their differences, fears, and insecurities…and the reality that their match made in paradise might not work in the real world, after all.