They were too consumed in the act of copulation to notice the changes happening to their bodies. In fact, they were to absorbed in the sex to notice anything. For a brief moment Jon forgot about his new over-sexed body, it was like he didn't feel the inconviniently huge boobs or hips he now possesed. Like his brain detached from his body. For anyone watching the scene though it was clear, that the changes happening to the couple would be impossible to ignore.
With each pump of Jon's penis into now huge Karyn his boobs seemed to be moving slightly differently. They didn't grow, they just looked like they were getting... pumped up. One of the nurses pointed at his massive bosom as one by one delicate blue veins started to show through Jon's soft skin, as it tried to stretch to accomodate the buildup of pressure. His butt too seemed to be changing, this time not growing in volume but with each thrust of his hips they would get slightly wider. Before they begun they already were almost twice as wide as his waist... And it was only getting worse. Also, was it just the growths that made it seem that he was shrinking or was he actually becomming an exaggeration of the word 'petite'?
As for Karyn, one thing the nurses could clrearly see was that she grew. With each pump whe seemed to be gaining another fraction of an inch in stature which with her already towering at 6'5'' couldn't have possibly end well...
