Their Master By S.m. Laviolette Direct

: A bisexual hero described as "sexually fluid" and "unconventional". He is a man of significant power with a dark, traumatic past that is fully explored in this installment.

: As their arrangement deepens, Smith must choose between his thirst for vengeance and his unexpected feelings for Moira. Key Characters Their Master by S.M. LaViolette

If you'd like to explore or need a breakdown of the trigger warnings for this specific book, let me know! : A bisexual hero described as "sexually fluid"