The collar shows new abilities

The next morning Jack and Ava woke up and left Abby to sleep. She had been thoroughly exhausted by the previous day and they felt she could use the extra rest. They made their way downstairs and Ava poured them both some coffee while Jack pondered what else to try with the collar.

"You could try it out on me," Ava offered as if reading his mind.

"You'll let me put the collar back on you?" Jack asked.

"I still have to follow all of your commands, so not that I'd have much choice, although you wouldn't need to command me to do it, I want to see what else it can do!"

"First. Make your hair red," Jack commanded her.

"Yes sir," Ava replied, standing up and heading out of the room.

"Wait. Where are you going?" Jack asked.

"To buy hair dye," Ava replied.

"Forgot about changing your hair, come and sit down," Jack told her. Ava nodded and sat back down.

"So, it seems while I have to follow commands as if I was wearing the collar, I can't follow any that require magic to do," Ava concluded as she sat back down and realised what had just happened.

"Seems that way. Would have been really useful if it had worked though," Jack chuckled. He took the collar from his pocket and passed it to Ava. She took it without a word and snapped it shut around her neck and Jack gave the command to stop her being completely under its influence.

"So now what do you want me to do?" Ava asked.

"How about we start small? Make your breasts three cup sizes larger," Jack ordered. Ava just looked down as her chest swelled. Her normally small breasts ballooning up until they stuck out far from her chest.

"So much for starting small," Ava gasped, her breasts now being squashed by the tight latex that was designed for her much smaller chest. The material clung tightly to her large orbs, leaving no detail to the imagination.

"Well, everything's relative I suppose," Jack chuckled. "How about, give yourself a thicc ass too."

"Sure," Ava replied, focusing for a moment as her ass grew quickly, the leggings she was wearing squeaked and crackled as it struggled to stretch and contain her new ass.

"Wow... You look both incredible and strange!"

"Oh thanks. You commanded me to do this!"

"I didn't mean in a bad way, I'm just not used to seeing you with so many curves! Hey, what actually goes through your mind when I command you to do that?" Jack asked. Ava thought for a moment before replying.

"Nothing really. It sort of feels like chewing food, you don't really think about what you're doing, it's just something you know how to do and automatically do. That's the best description I can give. It feels like I've always known how to change my body, but I can only do it when you command it."

"Like muscle memory?"

"More like a reflex."

"Interesting. What about if I tell you to hover?" Jack asked, curious to see how far this could go now.

"I can't do it," Ava replied, much to Jack's disappointment.

"Alright. Get undressed," Jack commanded. He watched as Ava peeled the latex from her body. She really struggled to pull down her latex leggings, they stuck fast on her newly inflated ass which jiggled as it finally bounced free. Her larger breasts hung heavily on her chest. "Make them firmer."

Jack watched as Ava's breasts seem to start to float, defying gravity as they firmed up and sat proudly on her chest. It was a strange sight to see, her body moving on it's on and reshaping to his desires. He pulled his phone from his pocket and began searching the web.

"Make yourself look like her," Jack commanded Ava, holding up a picture of one of his favourite actresses. Ava looked at for a second before shaking her head.

"I can't. I feels like I almost can, but I don't think I can do that yet," Ava replied. Her answer intrigued Jack. He had learned that the more he used the collar, the more attuned he became with it. Maybe he just needed to be even more attuned than he currently was.

"Alright. Well let's put those new tits of yours to use. Give me a boobjob," he grinned, dropping he trousers and sitting down. Ava kneeled in front of him and shuffled forward, grabbing his shaft and pressing it between her breasts. She then pressed them together, trapping his cock in place as it vanished in the mass of flesh she now had. Slowly she started to rub them up and down, massaging his cock slowly and gently.

"How do they feel?" She asked.

"Amazing. In fact, tell you what, from now on whenever you give me a boobjob, your breasts feel the same pleasure as my cock does," Jack commanded. Ava's eyes widened as she suddenly felt pleasure wash through her chest. She started massaging his cock faster, hefting her heavy tits up and down. She watched his cock as it appeared at the top of her cleavage over and over again.

Jack watched as Ava opened her mouth and spat onto his cock. Her saliva lubricated his skin as well as her cleavage, allowing her breasts to glide much more smoothly along his cock. The difference was incredible and they both groaned in pleasure. Ava couldn't believe how good her breasts felt, not only the size, but the sensations she felt as she worked his amazing cock.

She dug her fingers into her boobflesh, squeezing them firmly as the fingertips of her index finger played with her nipples. She felt like she was about to orgasm, but it was emanating from her chest and not her pussy which was an unusual sensation. Then she realised it was Jack, he was about to cum and she could feel it! She picked up her pace, moving her entire body to thrust her chest up and down his cock as the pleasure reached its peaked.

Jack groaned as Ava moaned loudly, both of them cumming hard as his cock pulsed and emptied its load across her chest. Ava kept massaging him, drawing out the pleasure for both of them for as long as possible until his cock ran out of fluid to give. Her chin, chest and cleavage were soaked in cum and she grinned up at Jack in satisfaction.

"That was amazing," she purred.

"I'm tempted to make you keep those tits just so we can do that again," Jack replied.

"If it feels that good every time, I have no problem with that," she smiled as she went to scoop his cum from her chest.

"Stop. I want you to wear it for a while," Jack told her. He didn't know why, he just thought the idea of her walking around covered in his cum would be hot. She just shrugged at him and smiled before standing up. It was only now Jack remembered he had made her ass bigger to and he watched as it jiggled as she walked over to the fridge. It was huge compared to her small athletic frame.

"Bounce up and down on the heels of your feet," Jack ordered. Ava complied and bounced up and down, causing her ass to wobble wildly.

"That feels so strange!" Ava giggled as she continued bouncing. She reached down and grabbed the soft flesh as it continued to jiggle.

"Ok, stop bouncing and put your ass back to its normal size," Jack told her, wondering what it would look like. He watched as her ass shrank back down, kind of like a car tire being let down.

"Ah, welcome back baby," Ava smiled, stroking her once again firm ass before gently spanking herself and winking at Jack. "I put a lot of hard work into this!"

"I'll put something hard into it in a minute," Jack shot back.

"Is that a promise?"

"Who's promising what?" Abby asked, yawning as she entered the kitchen. "WHOA! Look at those tits!"

"We've been testing the collar," Jack explained.

"No, really? I thought Ava's tits had just got bigger on their own," Abby replied dryly.

"Alright, no need for the sarcasm."

"Sorry, I need coffee. Ava, get me some please!"

"Sure."

"So, what's the story? What can the collar do?" Abby asked, kissing Jack firmly before sitting down opposite him.

"Well so far we've made her tits and ass bigger, but she can't copy the look of someone else. Yet at least. And she still can't levitate."

"Awww, no super powers then?"

"It seems not. Who knows, maybe one day?" Ava suggested as she handed Abby her cup of coffee.

"Thanks. So, I suppose you need to use it more then?"

"I was thinking that too. I wonder if it is just the amount I use it or the number of people I use it on that increases my connection with it," Jack pondered out loud.

"Well let's find out. Spend a couple of days using it on us and then if that doesn't help, let's find some other people to use it on?" Abby asked.

"How about the owner of a bank or something? We'd never have to worry about money again," Ava joked.

"That's not a bad idea actually," Jack replied. Ava looked at him surprised, but then shrugged her shoulders and agreed.

"Yeah, find someone super rich who could spare some cash, that'd be nice," Abby agreed.

Jack started wondering about what else he could do with the collar. The possibilities it constantly opened up never ceased to amaze him. Just as he started getting used to the idea of the collar doing something, it showed it could do something else to. He started getting excited about using it on more people, even if only to learn how powerful the collar really was.