She resists. But her resistance to Kazex weakens with her resistance to the potion

After that Kazex realized that although she was supposed to act like a willing **** it seemed she only meant during sex time. Outside of that, perhaps as payback, Helga made him do several chores. She made him clean the tower, make her meals, assist her in spells and many other tasked he was unable to refuse because of the deal. She even referred to him as a servant. But the **** cooking was actually lucky. He could mix more potion with their food to accelerate the effect. Even if she noticed she's just think it was aphrodisiac and ignore it.

One day when Helga finished her meal and she started breathing heavily. She was started to sweat and feel her heart beat increase. "Excuse me, Mast-servant. I need to......lay down for a second. Clean up here." She was so disoriented she started using sex play talk without meaning to so she went to her bedroom and shut the door.

Kazex smiled knowing that the potion had finally broken through her resistance. Once he cleaned up, he then quietly went up to her door and listened in through the keyhole. He could hear her moaning and her voice changing. He was sure she was slowly transforming. He knew that once she was fully turned, she would need a goblin dick to breed her Goblin nature and inner slut combined to form a natural slut. Then the door swung open by magic making him back away.