First and foremost in the list of concerns Jackson had was his health.
Whatever this was, he was interested in the option of seeing how this machine might handle improving upon his health and wellness. Certainly, Jackson was in good shape for his age, but he was always feeling like he was going to slip up more and more each passing day. Inputting some commands into the Chronivac, Jackson started to alter the image he saw in there. He changed up his bodily composition, taking the body fat percentage to 8% - which the younger men always seemed to be enthusiastic about getting to - and the older man flushed a bit red as he added some length to his manhood and eased the wrinkles on his face.
He even went as far as adding about ten pounds of muscle on there. He saw a vastly improved version of himself in the Chronivac device, grinning a bit as he saw the work the device did on his image. Jackson wondered if he would get to see the image in there change, or if this would be a character for some kind of mobile game or something.
"You're a vain son of a bitch, Jackson," He told himself, "But hey, probably no harm in trying this thing out. Let's see how it works..."
Huh, seemed like the machine had a length of transformation open, and a duration option. Shrugging his shoulders, he decided to make it take just five minutes. He didn't want to make it take too long to see what was going to happen.
Reality change option? He declined that. He didn't know what the deal was with some of these options, but went through, figuring they were just things the odd game / service wanted for the sake of whatever image it ended up producing. Jackson hit "begin transformation" on the device, and laid back into a couch to watch whatever was going to happen.
The first hint that this was more than some sort of game or photo editing service was a flush of heat across his body. Jackson wiped off his forehead, and gasped, "Wow! That feels hot all of a sudden. Hope I'm not getting some kind of heat episodes in my age..." The older man then looked down at his arm to see the skin there tightening and the muscle strengthening.
"Holy shit." He gasped out as he looked at his arm and flexed it, seeing his musculature flex and alter in the midst of his change.
His bicep swelled and pulsed as it stood out permanently on his arm, triceps before long joining in prominence. Even his forearms were looking meatier, stronger, and more well toned, Jackson able to see every single striation. He gasped and then groaned as he felt something like a kick to the stomach...
...And when he lifted his shirt, he watched his stomach quivering, shivering and tightening intermittently and forming more and more into a powerful abdominal relief. Jackson felt his chest likewise getting tighter in his shirt, and he took off the shirt before things could get much tighter. He saw a tight, strong pair of pecs, an astonishing set of abs, and his adonis belt leading down to his crotch - which was growing increasingly aroused as the changes progressed.
Jackson felt a tingling feeling in his face and hurried into the bathroom to see some of the deeper wrinkles on his face easing, bringing him to more of a handsome appearance, relieved of the weathered look of age. Jackson outright flexed for the mirror, "I-I...I am handsome!" It felt like such an unbelievable statement to be making, after so long spent as he was.
He felt with eager fingers the muscular countenance that was now restored to him.
He groped at a swolen, aroused groin that felt more hale and healthy, a stronger erection than he'd had in weeks or even months. Jackson moaned as he felt himself up, enjoying the sensation of his newly healthy, powerfully built body. His legs...oh, his legs! His formerly loose pants were now tight and flattering to the extremely toned quads and thighs, even his calves looking more developed than he ever remembered.
Jackson did some light flexing, only stopping when he looked back over where he'd left the Chronivac. His mind immediately went to what else he could use the device for, and he hurried back over to it. He was grinning like a lad again, feeling like he was suddenly capable of answering all these anxieties he'd been afflicted with of late. The shirtless older man looked down at the finished transformation displayed in the device and thought about what next to do for himself.
He had so many options, and so many paths to take. Cupping his chin in his hand, he once again looked in a nearby window, flexing his arm and lightly thumping his pectoral. Jackson enjoyed the tightness and strength, but the fact was...he was still as old as he was before. Just more healthy than ever.
"Hm..." That could be answered any number of ways. And there were so many different ways of using this lovely little device. Now, where to start with more transformations to be undertaken on Jackson...