It actually worked, Jon thought and ran his hand on the fabric of the nightgown, feeling the soft material. Wow, it really was readjusted to fit me! And I didn't expect Zoe's sleepwear was so... Nice... and then Jon grinned, having the kinkiest idea.
He aimed the device at Zoe again and pressed the buttom. Once again the time stopped and he was able to browse the holographic display. In few moments he found what he was looking for, right at the Body menu. He found a hidden part not mentioned before that allows him the swap of body Height and/or Weight.
"Lets try this." he said to himself, choosing the height and weight option and the time resumed. Jon then felt really weird looking around noticing things from a different point of view, Wow! I'm actually smaller! he thought, and then looked to Zoe.
Now Jon had Zoe's previous height, 5'4", and Zoe now had his previous height 6'1", and since they also swapped body mass, Jon's body was now quite andogynus, being small and skinny; While Zoe body with Jon's height and weight suffered a nice body mass distribution, which made her more curvy than Jon could ever imagine.