Having checked through a lot, he decided to keep it simple. "You know what. Are you alright with a pouch, like that of a kangaroo?" She contemplated for a moment. "I mean... Sure, why not. Even if we aren't doing anything with it, I can still think of ways to use it!"
"Alright, let's do it then." He initiated the transformation, deciding to have it replace her belly button. Her eyes widened, and she clutched her stomach. "I-I don't feel very good..."
Her navel hollowed out, expanding downward. The Chronivac automatically adjusted the positioning of her organs, such as moving and shrinking the bladder slightly, managing to make it fit between the bladder and uterus. A few teats popped up inside of it.
With some more minor modifications, the screen showed complete. "Alright, it's done." He looked up at Emily, who was still wearing only a short skirt. "It should be ready for me to go inside, so, let's see!"
She giggled, and he leaned down in front of her navel. Putting his fingers in, the hole stretched, showing the pouch inside. "In we go!" Stretching the opening enough, he pushes his way inside.
She seemed to shudder for a moment. "That feels weird! But... Not a bad kind of weird... I-It's hard to explain." Once he got all the way inside, he went down to the bottom and got comfortable. "I can hear your stomach and everything from in here! And the exit's easy to reach... I actually kinda like it!"
She moved around a bit, letting him see how it feels. He sits back, but feels the teats against his back. "Hey wait, I wonder how these are..." He pokes it for a moment. "Feeling something in that area is so weird! Like, I just know that area shouldn't be feeling anything..."