Let's see

The small part of her that still remained untouched began to panic as her mouth started to move, she could feel the words being formed in her head that the voice would say, admitting to her situation. Just as she began to speak she fought back with all her might, putting everything she had into one final effort of resistance.

“I’m still here asshole,” She managed to squeak out, breaking free from the voices control the split second before it could speak.

A brief expression of surprise flashed across Azzans face before he gathered himself, “Congratulations Selena, you are one of the first women to win a bargain against me.”

As he spoke he waved his hand, a magical aura drifting off of it. As he did, the voice of temptation faded from her mind and the humiliating sensation of being a passenger in her body faded, once more regaining complete control of herself. Her dainty hands drifted to the bottom of her breasts as she tried to shift her legs out from under them, the milk that coated her body made it difficult to grasp herself.

“It’s time you change me back,” Selena said, looking him in the eye as she said it.

“You are quite right that is what we agreed. I will be sad to see you go, you would have been a great servant,” He said, smirking as he continued, “Time to turn you back into the skinny, plain nerd you once were.”

Azzans words struck her and caused her to think about her life back home. Did she really want to go back to being the same girl she used to be? A washboard chest and unassuming figure? She didn’t have time to think about it for very long as Azzan clapped his hands together and a bright green glow surrounded Selena.

The milk immediately stopped dripping from her sore nipples as her tits began to shrink. It wasn’t extremely obvious at first but she could feel the weight reducing bit by bit. Her tits shrank back to roughly the size of yoga balls, shrinking smaller and smaller as they looked almost like basketballs. Her once dainty legs that had grown to match her wide hips were also shrinking too.

Selena could now wrap her arms around her breasts and hold them, something she hadn’t been able to do in almost two days. But as she saw them shrinking even further Selena felt a stirring emotion she didn’t think she would feel, she was beginning to feel regret.

“Wait!” She shouted, “Stop for just a second!”

Azzan clapped his hands again and the light faded as she stopped shrinking. “Yes?” he asked her, that same smirk on his face.

“I- I don't want to be a nerd again.” Selena said, trying not to look ashamed with her desire to be hot.

Azzan grinned, having realized she was not immune to being corrupted after all. He shook his head as he said, “That was not our wager. We agreed that if you survived I would return you to normal.”

Selena’s mind was racing as he raised his hands to slap once again, trying desperately to think of some way to keep just a few of her curves. Finally, she realized there was a way, “I want to make another wager,” she said.

Azzan chuckled as he sat across from her, dipping a finger in the mana filled milk on the floor before tasting it, “What would you like to wager?”

“Well… well I want to keep my boobs big, bigger than these,” She said, gesturing to her breasts that were just a bit larger than softballs. They looked almost proportional to her body but she had grown so accustomed to being massive that her mind was skewed to thinking it was small, “I want people to stare at me and admire me.”

“Well I can’t just let you keep them, you should know that I am not one to benefit others without something in return.”

“I know,” Selena said, “but I am willing to make an arrangement to help you.”

“Oh? And how would you help me?” He asked.

“I… I- I will keep gathering mana for you.” She said, breaking eye contact and looking down in shame.

Azzan grinned and scratched his chin as he thought. “How will you do that?”

“To be honest… I don’t dislike sucking dick and swallowing cum. If you allow me to do this and make sure it still tastes good to me I wouldn’t mind doing it for you,” She said but realized she might have left a loophole for him to exploit, “But! Only for a few days a month, I don't want to be desperately sucking dick every day, I want a normal life.”

“Hmmm,” Azzan muttered as he thought about her proposal, “Well how about this, I will grant your wish to make sure cum retains its pleasant flavor for you but I will add this: instead of having a period, you will instead become infertile for one week with a heightened libido. During this time, any cum that enters your body will be stored in it until I am ready to collect it. At that time it will then be converted into mana.”

Selena thought about it for a second but then Azzan said, “On top of that, I will allow you to change the size of your breasts at the end of your new ‘period’ so you may change it at will. But, I will also send a servant to tell you how much mana I desire and if you fail to obtain it, you will be brought back to my palace until your next period where you will be used as my personal mana generator. My entire court will use you as a mana making machine until it is time to send you back.”

Selena waited to make sure he was done speaking and adding conditions to their arrangement before she considered anything. She stayed silent for a while, pondering his offer. She had to admit it wasn’t completely awful, for a couple days a month she would be able to satisfy all her urges and at the end of it all make her tits bigger or smaller. There was the prospect of being taken away if she didn’t produce enough mana for Azzan, spending the next month as a cum dumpster for all the beasts and monsters in his realm. Selena hated to admit that even that sounded hot to her, having no worries besides being pumped full of hot and sticky jizz.

Finally she spoke up, “If I agree, can you make it so no one will find it weird that I go feral for cum once a month?”

Azzan nodded in agreement, “I can do that.”

“And if I do fail to gather enough cum or mana, can you pause time until I return so my family doesn't think I'm missing and I don't miss class?”

“I thought you said you didn't want to be a nerd anymore?” He retorted with a chuckle before waving his comment away.

Azzan tilted his head as he thought, “Well I can’t pause time but I can return you to about the same time, so yes, no one will know you went missing. Is there anything else?”

Selena leaned back against the wall, closing her eyes as she thought, “I’m not sure I can trust you.”

“I understand how you feel that way,” Azzan said as he raised both his hands, “but I promise you this, I will not make any underhanded, sneaky changes to our agreement and I will not take anything out of context to screw you. This I swear as the lord of this land.”

A red stream of light shot from Azzans chest and struck Selena’s, the light resting right in the center of her soft cleavage. “Now I have made a solemn vow and am bound by magic.” He said, “If I break our deal you will be completely free of my control and I will be **** to remain in my realm along with any of my servants until someone casts a spell from my book, just the same as you did.”

Selena would be lying if she said she completely trusted him now, but if she wanted to keep her sexy figure she had no other choice. “Fine, I agree,” She said.

Azzan stood up and helped her to her feet, “Splendid!” he said, “Now close your eyes and I will return you to your home. Once you get there you will be able to change your bust size one last time until the end of the month.”

Selena nodded and closed her eyes, “I’m ready.” she said.

“See you in a few weeks,” Azzan said with a wink before wreaths of fire began to twist around Selena and then vanished with a puff, leaving Azzan standing alone in the cabin.