There was a long, pregnant pause.
"Um, Professor?" said Melona. "It's not working."
Cosyt looked up at Melona, a look of panic, frustration, and growing hunger passing over her face. With a sudden scream, she shot upwards. Melona was half worried that Cosyt was lunging for her. Instead, she watched as Cosyt vaulted onto the desk, displaying a level of agility Melona never thought her scrawny old body would have been capable of mustering. She was pretty sure that Cosyt was trying to jump over the desk, but fell short. Evidently Melona's old legs were less luscious and less powerful.
Bellowing an expletive in some infernal language, Cosyt scrambled forward, clawing at the wood with white-knuckled hands as she ripped open a desk drawer. From it, she grabbed a syringe filled with a dark, purple fluid, sat bolt upright, snatched her robes up to expose her scrawny thigh, and stabbed the needle into the pale flesh, depressing the plunger with a primal, pained growl. Her breathing slowed, growing less raspy and more measured with each inhale.
"P--professor?" asked Melona. "What's--what's going on?"
Cosyt looked up at Melona, her eyes distant and unfocused. "Tell them that class is dismissed, Mel. Please."
Melona turned back to the rest of the students. They had all fallen dead silent. Wait, that wasn't true. Melona could hear their hearts beating, their frenzied pumping sounding like the galloping of hooves. The room seemed to fill with a strange sensation, a tension that begged to be broken, and--
"Melona!" Cosyt slapped the table, breaking Melona out of her trance. "Please, there's not much time."
"Oh. Right." Melona gestured at the door. "Class is dismissed. You can all go."
The students stood and left, their eyes lingering on Melona and Cosyt as they filed, almost reluctantly, out of the room. Melona was about ready to get up and join them when she felt a rush of pleasure, traveling up her spine from--her tail? That wasn't--
Melona turned around to find Cosyt lying on her side, shuddering slightly. The back of her hand was brushing a pointed tail that Melona slowly realized was hers. She hadn't noticed it until now. She pulled it away, trying to ignore how sensitive it was.
"Mel--" Cosyt closed her eyes, swallowed again, and sat up. She scooted off the desk and half-collapsed into her chair. "We need to talk."
Melona leaned in towards Cosyt, suddenly aware of how much every movement showed off her new cleavage. Cosyt didn't seem to mind that; indeed, she managed to actually meet Melona's gaze. Melona suspected that was the first time in a while that anybody could do that in the presence of her new body. "Professor, do we need to get you to the nurse?"
Cosyt shook her head. "No, no." She took a deep breath, letting her flat chest rise and fall. When she opened her mouth again, her tone started to return to normal. "Well, probably, but first--" She shook her head again. "Mel--