Yes

You let Julie enthusiastically suck your cock while you decide how to handle her. This might be her obeying your implicit will, but that seems unlikely as you'd never so much as implied you wanted any of these girls to stick around. That would make Julie the first girl to go down on you of her own free will, so that had to count for something. You write a new rule in the Rulebook.

New Rule: Julie Yang does not have to obey the implicit will of the owner of the Rulebook. She is still beholden to all other rules written herein.

Julie continues to suck, apparently unfazed by the new rule. Her free hand reached under her micro skirt, clearly seeking her own pleasure as well as yours. You push her face down with both hands, forcing your dick past her throat and pressing her lips up against the base of your cock.

"Alright. You can come with me. But before we get to anyone else, I'm going to take you up on that offer and break you, first."

You hold her down, enjoying the feeling of her throat constricting around your shaft every time she gags. She holds out for a while, about 30 seconds, before she tries to pull up. You hold her there anyways. Her gags increase in speed and intensity, and her eyes look up at you, pleading for air.

You resolve to train her, and decide to administer her first lesson immediately.

"First lesson: Nothing is more important than my pleasure. Not your pleasure, not your consent, not the air in your lungs, not even your life. You are my property now, and if I decide to hurt you to get myself off, you should be thankful for the attention."

She still struggles to breathe, her tear filled eyes shut against the pain of her burning lungs. Her resistance fades as she begins to lose consciousness. You pull out of her throat quickly, using one hand to pump your now massive cock and the other to hold her face in position. As she sucks in air for the first time in minutes, thick ropes of cum cover the petite Asian's face, her first facial and ragged breathing marking the beginning of her life as your toy.