Take her to his dorm

"Alice, follow me," said Julius.

Alice stood up, and Julius took her to his dorm room, making sure to lock the door behind him.

"Now strip," he said. "But leave the collar on."

Alice obeyed.

Julius felt his dick perk up.

"Alice," he said. "We'll have fun, but later tonight. For now, go into the closet, and don't make a sound."

Alice nodded, closing the closet door behind her.

Julius felt as though he was going to hell for this, but he felt as though he needed Alice to remain his fuck doll. And to do that, he needed to leave her in the closet and not snap her photo with the mind control lens again. He knew from his tests with the camera that women who were mind controlled before being frozen would remain in trance, so he could freeze Alice at any point to ensure she never went hungry, thirsty, or needed to go to the bathroom.

Now he had a personal goth fuck doll.