Mentally, Illyana knew full well she was unreadable to most psi abilities. Limbo had taught her to steel her mind against such intrusions.

Physically - she knew how to endure, but she was as susceptible to her baser impulses as the next person. Her body was certainly flush with want, a fine tremor shivering up her spine. She throbbed with anticipation for how very close they were, how easy, how satisfying it would be... If not for her iron-forged will and conditioning, she would most likely be a fawning mess of dumb desire already.

"You are responsible for your influence on others. Today, you have been negligent. You will not be so negligent again. Not in the library. Or you will be banned to safeguard the others trying to make use of the space unmolested." Her hand tightened, but carefully. Only to demonstrate her determination to resist. "Tell me that you understand these terms."