In Both these books the harem grows over time. Their Vampire Queen is finished but Blood Empire is still going, but worth the read this series had me literally laughing out loud. Both offered on KU.

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Queen Takes Knights (Their Vampire Queen Book 1) by Joely Sue Burkhart https://www.amazon.com/dp/B076JFJ8ZF/ref=cm\_sw\_r\_tw\_dp\_12PKQMMGEC0TJR3XMFT6

Rising Queen (Blood Empire Book One) by Alisha Williams https://www.amazon.com/dp/B08WWYT5ZQ/ref=cm\_sw\_r\_tw\_dp\_MXXT3J4V7K9QTYQ62D8A