Please don't laugh at the spells that Moody says. I didn't want to think too hard on it and this is what happened.
Daphne practically ran to Moody's classroom. She couldn't wait to see what spells he would teach her. Ones that gave her constant orgasms? Or that made her vag tighter? Or that made him huge down there? She felt herself getting wetter at the thought of what awaited her as she knocked on his door. She pressed her thighs together as she waited for a response. She hadn't even worn panties in anticipation.
Moody opened the door and she ran inside. He closed it behind her and turned to her.
"Sit on the desk." He gestured with his cane. She sat obediently. "Good."
He walked in front of her and tossed his cane to the floor. In the next moment, he grabbed her blouse and ripped it open, spilling buttons everywhere. He groped her breasts for a few seconds before removing both her blouse and her bra. She squirmed in excitement. His hands hovered over her breasts.
"This first spell will help with these twins." He lightly squeezed them. Daphne practically moaned. "Titicus Growum!"
Her C-cups turned into D's then DD's then borderline E's. Moody was going all out on that spell.
"So much better." He massaged them. Daphne moaned, thrusting her hips forward. Her juices were beginning to drip onto the desk. Moody pinched a nipple and she squeaked. "So eager. I'm just going to have to fuck you raw."
He lifted her right leg and pressed his crotch against her warmth. She moaned, rubbing herself harder against him. His erection was ready to burst out of his pants.
"Next." He panted. "Is that little cunt of yours. Tighticus!"
Daphne felt her vag get smaller, tighter. It was a virgin cunt. She knew his cock would feel amazing inside of her now.
"Now me." He said. He undid his pants and they fell to the floor. His erection sprung out at her. "Bigus!"
Daphne watched as his cock grew almost half a foot in front of her. She looked up at him, a bit concerned.
"You're going to rip me in half." She wanted the pleasure, but she didn't want to die.
"Don't worry. I have a spell that will keep your cunt tight, but it'll expand as my cock burrows inside you. It'll still feel as tight, but it'll stretch so it doesn't kill you." He explained. "Tardisisus!"
Her vag felt a bit tingly, but she couldn't think about it for long before he had thrust into her. He used the force of his thrust to push her onto her back, kneading her breasts in his hands. He began a hard pace.
"So . . ugh . . fucking . . ugh . . tight." He said between thrusts.
His cock felt amazing inside of her. It filled her completely, something she'd never felt before. He stroked her inside walls, groping her breasts at the same time. The pleasure he was giving her made her cum quickly. She clenched around him and he came immediately after. He fell into her cleavage, exhausted.
"Again." He panted. "Erectius!"
Moody got another erection then and he began thrusting again. His head was still in between her breasts and he began to suck and bite them. They both came again, and Moody used the erection spell again. This cycle continued until dawn was dangerous close. Then he pulled out and fixed his pants. Daphne laid exhausted on the desk. She doubted she could use her legs at this point. Her enormous breasts were still there and stuck out into the air so high Moody could hardly see her face.
Moody picked up his cane from the floor.
"You better get dressed and leave. I don't want to get fired for fucking you." He said.
She sat up and grabbed her breasts.
"What about these? I won't fit into any shirts!" She said.
"Fine. Titicus Normalis!" He said. Her breasts went back to a C. "Such a shame. I half-wanted you to keep them and watch at the boys mind-fucked you or actually fucked you in the halls. Or me fucking you in class and calling it a teaching demonstration. All the boys could join in."
At this point, Daphne had dressed.
"As much as that thought makes me wet, I'd rather not get caught. It'd be a shame to go sexless for even a day." She pouted.
She jutted her ass into the air and walked out of the classroom. Moody felt his cock stir in his pants and willed it down, promising he'd fuck her tomorrow.