Between Two Billionaires (Between Two Billionaires #1)
Sky Corgan

Her step-sister Ethel is the complete opposite.
When Ethel guilts Sarah into sneaking into a party under the guise of being strippers, Sarah's entire world turns upside down. Everything she thought she knew about herself is changing, and she doesn't know how to stop it.
What was supposed to be a night of trespassing and fun quickly turns into an unexpected love affair with a handsome stranger. Tristan Locke is perfect. Too perfect. And Sarah's about to learn that if something seems too good to be true, it usually is.
Between Two Billionaires is the first part of a three part novella serial.