- E-bookBillionaire Sadism 1 (A BDSM Proposition)Harley Harper
- E-bookBillionaire Sadism 2 (A BDSM Proposition)Harley Harper
- E-bookBillionaire Sadism 3 (A BDSM Proposition)Harley Harper
- E-bookA Billionaire Stole My Heart (My Billionaire's Romantic Soul)Harley Harper
- E-bookBillionaire Sadism 4 (A BDSM Proposition)Harley Harper