As soon as Rebecca re-entered her humble home - indicated to her stomach's passenger by the clatter of keys in a doorknob - she practically collapsed in. The jacket and jeans covering her flopped off over its back as she settled in. She tossed on a sports bra and shorts from the closet, before flopping on the sofa. Blake initially felt a bit of relief to have the warm clothes off her, cooling down her sweltering abdominal region; but within seconds, she went in a slouching position that put even more weight on him. It was like the solid wall keeping him in was suddenly exposed to the open air, and all the elements.
Aunt Becky's prodding fingers being chief among these elements. She kept rubbing at him, poking, and squeezing. Finally mustering the breath amid the invasive touches to speak up, the young man within spoke up. "Th-this isn't right, stop it!"
The breath from Rebecca's laughter hit him on one side, as the rumbles from her vocal cords jostled the other side. "I'm trying to get my stomach pill to work! If you're not gonna kick in, then why don't you try getting out?"
Blake started gathering the remaining bits of air available. When he had a small amount, he began chanting. "Projection from this form, shaped to a new norm--"
SQUEEEZE. Between mumbles, his aunt's abdominal musculature closed in on him. He was caught between words, and between a sudden crunch - his entire body squeezed inwards with hers, as she lifted her bare legs. While his sense of vision was still spinning, disoriented, she relaxed it - letting out a small sigh of effort. "Don't worry, try again."
He started anew, now out of breath, and whispering at a lower cadence - both hoping to save his energy, and to remain less conspicuous to his Rebecca's keen hearing. "Projection from this form, shaped to a n--"
SMASH. She performed another crunch, like it was nothing. This one went even tighter. Becky may have actually pulled off a few crunches; the shaking was going through Blake's spiritual cell for a good long while, everything feeling at once jelly-like and rock-solid, stinging and numbing. He felt like he was splattered across a few cells at once. His biomass was actually shrinking from her exercise. "Stop! Come on, do you want me to -- my mom will..."
Rebecca stretched out, casually tapping his spot as if to reassure him - though it only felt more sickening. "She'll thank you for helping me recover, and thank me for putting you in shape. Come on, you're aaaalmost out!"
His mind scrambling, trying to recollect every crumbling bit of himself, he sputtered out "Projection from thi--"
FWUUUMP. Instantaneously, the entire mass of woman flopped her belly on the cushions; doing one more crunch. It made the remainder of Blake shrink away, burning harder and harder. She must've been exercising a lot to get to this point - and yet it all fizzled away in a blur for him.
"Well," she said, grabbing some piece of jewelry Blake couldn't make out. It shimmered in his vision and blinded him. "It's been fun, but I think this is where it'd be best for you to quiet down, Blake."
He only made it out as the clamps opened up. A navel ring. "No! Do---MMMmmmph...!" As he tried to resist, he felt his voice choked out. The tendrils of its fastener snapped into place around his aunt's belly button flesh. There was already scarcely any of him left; and what was, was now more or less a permanent fixture, closed into place with this silvery lock. Did she know that was his weakness... or did she just think it'd look pretty?
"Gmmphm... Ghhmmm..." Even his thoughts were unclear, kept closed away with that singular snap.
"Looks like you're lost in there." Rebecca rested for a second, sighing. "Maybe you'll get out sometime... Here, I'll train you for that time."
Before long, she continued her crunches. The assault on his senses lasted for longer than he could fathom. Crunch after crunch... His only sensation being the coolness of the ring, the heat of his aunt's inner workings, and the sound of her satisfied sighs as she worked them both out into a trance.