A gasp and a blush

He watched Sandy's eyes dialate until only a thin rim of green surrounded the pupils. She gasped and her paper-white skin flushed pink across her face and down the top of her chest, a look of shock and something more on her face. She started panting, her mouth wide open. He could see the bumps of her nipples in her t-shirt.

"Oh, my God, John! It works!" she exclaimed. She closed her eyes and mouth to moan softly. She tilted her head back and pushed her chest out, luxuriating in the feeling. Seeing her like this was getting him aroused as well. His pants got a little tight in the crotch.

He didn't know how she felt about the spell working. Before she was joking about it working. Maybe she didn't want this. "Do you want me to read the counterspell?" he asked, trying to be polite.