She could still resist as he'd not sealed the deal yet.  With one more feeding at sun down the next night, she'd be unable to resist.  She still had her free will to an extent.  One more feeding and it would be even harder for her to resist him.  She lowered her eyes and was prepared to follow him.  "Very well Master," She said quietly.  She didn't want to be away from him.  She felt as if she really loved him, even if it was a perverse form of love and it was his blood making her love him.  Of course, she didn't know this.