Threaten her
From Lord Of Utterdom
"If you will not, I'll see to it that you are no longer the apprentice of anything, save maybe the apprentice to the Leper who cleans the horse shit from the stables." You smirk, weilding your power like a sharply edged sword.
The girl swallows hard, and waits to see if you'll change your mind. When you stand in silence, she puts down the rolling pin and begins sinking to her knees.
You open your trousers and remove the royal phallus. You level it with her lips as she gets to her knees. You push it forward until the tip is actually piercing her lips just a bit, and you look down at her with staunch resolve.
"Get to it," you say.
She reaches up and takes hold of your cock, parting her lips, and swirling her tongue out and around the head. Her inexperience is showing, and the pleasure is minimal, save for the flexing of your power. You reach down and push at the back of her head, forcing her to take you into her mouth deep. She gags around your cock, but you press on, pushing and pulling your hips and watching your cock piston in and out of her mouth. Spittle leaks from the corners of her lips, and tears stream from her eyes. You can see your cruelty reflected in her gaze.
Just as you're starting to enjoy it, you feel something heavy hit the back of your head. You hear a loud thud and feel a pressure build at the base of your skull. The world grows dim and you fall to the floor, out like a light.