Sarah Morgan 
Blackmailed by Diamonds, Bound by Marriage [EPUB ebook] 

The Brandizi Diamond has been in the Kyriacou family for generations. So when it comes into Angelina Littlewood’s possession, Nikos Kyriacou must get the jewel back.But Angie has her own reasons for keeping it—and for wanting to teach arrogant Greek Nikos a lesson!What better way than to agree to marriage? But then Angie discovers what being Nikos’s wife entails…. He has one demand: he’s her husband and she’ll share his bed!