Maddox was quiet for a few moments, before he gently sighed. "Yes," he said, slowly pulling out of her, slick with unknowable fluids. "Just hold on a moment," he said, his hands coming together. "Devil's Arithmetic: Reversal," he murmured softly, an equation writing itself onto ethereal strips of paper around his arm... and suddenly, she would feel whole again, her virginity returned. "And now," he murmured softly, a small orb of light coming to life before his hand. "You won't remember this," he said. And he pressed his hand to her forehead.
And as far as Maddox knew, she wouldn't remember it, right up to the point of him preparing to enter her. After that, her memory would be blank, free to work up its own solution as to what had happened. As far as she knew, he had stopped when she'd asked him to. Her clothes had been returned to her, and he'd taken her off to her dormitory.