"Babe" Whispered Mia as she shook Alex awake. "Wake up." Alex opened his eyes to find Mia standing in the dark, leaning over him. He squinted at the clock and saw that it was a quarter to 6 in the morning.
"What? What's wrong?" He groaned as he rubbed his eyes. Mia turned around and pointed towards her huge ass, which was currently stuffed into a pair of pyjama shorts.
"I want to go for a run." She said. "Can you shrink me down?"
Grumpy that he'd been woken up so early for this, Alex waved his hand. "Your ass, thighs and hips change to the perfect size for jogging." Mia groaned as the transformation took place, her lower body shrinking down, her hips narrowing and her ass reducing. She quivered as her fat became muscle, her previously enormous ass and legs instead becoming lean, sturdy and toned with muscle. Her pyjama shorts slipped to the ground, leaving nothing to Alex's imagination. She turned around and squeezed her ass, which was still large for her build, but toned and muscular.
"Thanks!" She chimed. She turned and left the room to go get dressed and leave for her run. Alex watched as she left. Still grumpy about being woken up so early, he waved his hand again as she left the room.
Eyes closing, he muttered, "You'll return to normal as soon as you're back." With that, he rolled over and went back to sleep.
An hour later, Alex was in the kitchen making breakfast when Mia came through the front door, glistening with sweat. Alex stopped to admire her figure. With her current transformation, she had a slim, toned upper body and the thick thighs and ass of a female athlete. He admired her toned ass as she walked by him to get a drink. Mia put her hands on the edge of the sink, still catching her breath. "Whew!" She puffed. "It really feels incredible to be able to run without that huge ass slowing me down." She took a long gulp of her water and stopped as a familiar tingling feeling spread through her body.
"Alex," she started, mildly concerned. "Did you make a command?" Alex laughed as he remembered.
"Oh, I did this morning. Just that you'd return to normal when you got back. Nothing serious." Mia nodded.
"That's fine, although I would've appreciated some - nngh" She cut off mid-sentence as the expansion began. Mia placed a hand on the table to steady herself as her hips began to bulge out, her ass widening. She bent over and placed another hand on the table, groaning in pleasure as her ass and thighs swelled back to their former glory. As she grew, her jogging shorts began to strain against her flesh. Alex couldn't believe his eyes; Mia was bent over on the table in front of him, her ass and thighs expanding with every moment. He slapped her ass, sending ripples of pleasure through her body. As she reached her usual size, the jogging shorts tore at the sides and fell to the floor.
"That will never get old" Alex said, unable to tear his eyes off of Mia's ass.
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Dressed and showered, Mia sat at the table across from Alex. She finished off her large protein shake and was tucking into a bowl of cereal. "What I experienced at the market last night was incredible. I want to keep experimenting with these rings, if that's okay with you."
Alex smirked at her. "Love, I've been brainstorming all morning."
Mia raised an eyebrow "Have you now? Well, let's hear it."
Mia and Alex both glanced down to see if the other was wearing their ring. They were. Mia felt a hot flush run over her as she realised any ideas Alex mentioned now would come into effect. Alex felt a similar excitement as he came to the same conclusion.
"Well," he started. "Of course, we could play around with basic sensitivity. For example, making your nipples ten times as sensitive as they already are." Both rings vibrated gently, and Mia stifled a small groan as her nipples, simply brushing against her shirt, sent a wave of pleasure through her.
"Of course." She said, playing it cool. "It's only logical."
Alex nodded in agreement, grinning at Mia's obvious pleasure. "I also thought that playing around with different methods of growth could be fun. Something milk-related, maybe."
Mia's heart fluttered with excitement. The idea of her breasts swelling with milk was always something that had excited her. She'd been flat-chested all her life, and seeing pregnant women's breasts grow even bigger as their milk came in had struck a chord of jealousy with her.
"Interesting." She said, still playing it cool. "And how would that work?"
Alex grinned, seeing the redness rising in her cheeks.
"Well, I was thinking that your breasts could grow bigger, heavier and fuller as they swell with milk, according to how much dairy you ingest. Of course, you'd be very sensitive to this growth. It wouldn't take much dairy to make you really blow up. Also, you'd fill with milk just a little bit faster than you grew. That way you'd always be full to leaking" Both rings vibrated, signalling that a command had been made. Mia's eyes widened as she looked down at the table in front of her, with her drained large smoothie and a now-empty bowl of cereal.
"Alex..." she murmured, eyes wide with excitement and arousal. "I just had so much milk."
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Mia felt the familiar wave of warmth wash over her that signified that a change was coming. This time, however, it felt different. It felt like there was a swirling pressure building in her chest. She looked up at Alex with arousal in her eyes.
"How big am I going to get Alex? How full?" she asked.
"Honestly, I don't know." Replied Alex.
A loud gurgling noise emanated from Mia's chest and two dark patches appeared on her shirt. She groaned as she felt the milk come through, her nipples still ten times as sensitive as usual. Now that the milk had begun, she felt the sensations within her grow more powerful. Mia's chest bloated forward, going from flat to apple-sized almost instantly. A loud gurgle erupted from her chest and two thin streams of milk shot from her shirt before reducing to a drop. She threw her head back and groaned with pleasure as her breasts expanded. They weren't getting bigger like they had the previous night at the market. Now, her breasts felt as though they were getting fuller.
Their weight on her chest was increasing, as was the feeling of pressure and tightness.
Another gurgling noise came from Mia's chest, and it suddenly bloated again. Her tits swelled from apple-sized to watermelon-sized, and her heavily stretched top gave Alex an incredible view of her cleavage. Swelling within Mia's shirt were two massive mounds of flesh, light veins running along her tanned skin. As Alex watched, Mia's chest lurched forward again, straining against the confines of her shirt. She leaned forward and rested them on the table and looked at Alex, pulling up her shirt. As it slid off of her breasts Alex marvelled at how big they had become. Swollen enough to fill her lap, they rested on the table like two gigantic water balloons. Every little movement from Mia caused them to slosh side-to-side. Alex was amazed to actually hear the milk within them.