It wasn't the best time for the Chronovac to glitch... but it was the most ironic time, unfortunately for Jeff. He found himself suddenly unable to move, and rapidly shrinking. It was only seconds later that he found himself in Chris/Diana's mouth, being chewed on playfully. He non longer had eyes or ears or even a brain, yet somehow he could still "see" and "hear". He knew it should hurt being chewed on by Diana, but it really didn't bother him, in fact it felt pleasant.
Then he got a glimpse of himself hanging out of Diana's mouth in a nearby mirror. He was a specialty dildo - specifically a dildo of a dog's cock. He would have freaked out, but somehow he remained passive and simply enjoyed being chewed on by his once best friend who he had turned into a bitch. He wouldn't be mounting her after all, instead he would be her chew toy.