A New Vampire King

An early B-Day present from My Co- host and friend Atomsk... what if instead of Marceline being able to absorb the Vampire King's essence back into her, the cloud surprised everyone and tried to attack her but Finn gets in the way and as a result... he gains the Vampire Kings powers and becomes a vampire himself... get ready for A New Vampire King. (Lemon warning(Finn X mass Harem)