Jon's mouth started speaking for him,
"Give me that body below the waist"
Jon regained his own movement, feeling a tightness around his hips.
Looking down, he saw two beautiful female legs stretching to the floor. His hips were wider, and his butt was much more prominent, stretching his boxers tight against his legs.
The tightening making it more obvious the lack of masculine bulge in the front.
Reaching a hand down, Jon patted the front of his crotch, confirming the absence of his manhood.
His hand continuing downward toward his thigh gap, he stopped himself I can explore that later he thought.
Suppose I should put some clothes on
Grabbing a pair of jeans, he started slipping them on, with far more ease than usual, until he reached his hips.
But with a few tugs, and some wiggling, he managed to get the jeans on, and fastened up.
Taking a few steps across his bedroom, the jeans were rubbing and tugging very unpleasantly. So, pointing his index finger at the model on the calendar, who was sporting Jon's lower half, his bulge in her swimsuit, Jon made another swap.
"Give me those clothes below the waist."
Jon felt the tugging on his hips stop. The model in the calendar was now wearing Jon's boxers & jeans.
And Jon was wearing part of the model's red swimsuit, cut off at the waist.