The vampire is power crazed with the growing slayer seed inside her. She uses her powers to get the slayer back in bed with her so she can drain every drop of cum from him, and in turn grow bigger, and fatter with his seed. Seemingly lending her unlimited power. The rush is euphoric, and she wants more. Little does she know that the slayer had planned for this and has some of his special semen with a surprise for this oblivious vampire. Her belly grows and stretches as her pussy milks the cum out of him wave after wave. Now he is drained but her belly doesn't stop. She keeps growing and growing, and her water breaks.