Dave was laying on top of the hard muscular naked body of Jeannie. They just finished having sex and Dave was finally completely spent.
It had only been 4 hours since Jeannie first appeared in his life and he hadn't been able to keep his hands off her since.
It didn't help that she currently looked like the muscle goddess he had a crush on since he was a 12 year old kid. After the first 2 orgasms and hours of muscle worship he thought he couldn't go anymore, but his hands couldn't stop exploring every detail of her muscles and after 2 more hours of muscle worship and sex his cock needed a break.
They laid in silence and for the first time Dave was able to think about what had happened up to this point. He could feel the proof under him, it was real. Even completely exhausted he still casually cupped each bicep in his hands. Jeannie had her hands behind her head in a relaxed position. She still flexed her biceps for Dave, never tiring of showing off her incredible body.
Dave still had so many unanswered questions, now that his overwhelming lust had subsided he was hoping to get answers.
He knew that Jeannie clearly had some kind of magical powers. She was able to increase the size of his dick and balls, plus it seemed she was able to change her appearance to anything he could imagine.
"So Jeannie..." Dave started.
"Yes Master?" She responded.
"You made physical changes to me, are there other changes you can make?" He asked.
"Sure Master, what do you have in mind?" She inquired.
"Can you make me stronger?"
Dave had always wanted to be muscular himself, but was never able to put in the work. Call it genetics, laziness, or lack of knowledge, but he was never able to build much muscle after years of work in the gym.
He always dreamed about looking like a bodybuilder, but the best he could do for himself up until this moment was slightly above average.
Could she change him into a pro bodybuilder in an instant he thought to himself. If she could, it would probably not be wise. People don't just get that big overnight, but maybe she could slowly add muscle to him every day.
It was Spring, but the Midwest still hadn't really given them many days above 70 degrees. Around family and friends he had still been wearing pants and long sleeve shirts. Maybe she could add 20-30 pounds of muscle and see if people notice.
"Yes, would you like me to do that now?" She asked.
"That would be amazing, but can we do it slowly, I wouldn't want people to ask too many questions."
"Whatever you would like Master." She responded simply.
Dave got up and went to his bathroom where there was a mirror. Jeannie followed close behind.
Dave looked at his reflection in the mirror. His body was lean with average muscle development and a little bit of fat on his belly. He still couldn't believe how big his cock looked. It must be at least 6 inches flaccid.
"Maybe we should remove my fat first. I wonder what my body fat percentage is?" Dave said to himself.
"Your average body fat percentage is currently 24%." Jeannie answered.
"Wow, you know that?" He asked.
"Yes Master."
"Do you know what a professional bodybuilder body fat percentage is?" He asked.
"Yes Master, usually between 3 to 7% during competition." She answered.
"That's incredible, it's like talking to a computer. Can you change my body fat percentage to 10% for starters? Can you remove fat from my body without affecting my face?"
"Yes. Get ready Master, this might tingle a little."
Dave watched himself carefully in the mirror. He started to feel a little warm and then he could see his body shrinking before his eyes. All over he could see himself thinning and the muscle becoming more visible.
In a matter of minutes Dave was standing in front of the mirror with his jaw wide open in shock. He looked like a skinny teenager with no body fat.
"Wow, I had no idea I was actually so little. Jeannie, you're amazing." Dave said.
"I am glad this makes you happy Master, would you like me to make you stronger now?" She asked.
"Yes please! Can you add muscle to my frame slowly? Maybe increase my muscles so I am proportional first. My legs have always been skinny, so they would need to be increased more than my upper body."
"That makes sense Master, I can do that."
Again, Dave looked into the mirror enthusiastically waiting to see the results. Again his whole body felt warm. He could see his legs increasing in size. His arms and chest started to get a little bigger.
His skinny legs and calves looked like they doubled in size as they filled out and grew. His upper body, which was a little bit more developed, rounded out and filled in. Muscles that were completely underdeveloped started to show.
"Okay Master. I balanced you out so you are more symmetrical and then added a little size everywhere." Jeannie said.
Dave looked himself over. He looked great, like Brad Pitt in Fight Club. He was lean and muscular. He flexed in the mirror admiring his new physique.
"I look incredible! I have abs!" He said as he hit different poses to see how defined and ripped he looked.
"I need to see how I look with my work clothes on." He said as he hurried to his closet. He quickly picked out a typical outfit he would wear to work. He put on his dress slacks and button down shirt.
The shirt and pants definitely fit differently. The shirt was a little more snug in the shoulders/chest and loose around the waist, but overall it fit him well and didn't show his muscles.
The pants fit totally different, he now had a butt. They were more loose in the waist but at least they fit. He would be interested to see if anyone noticed the difference but overall thought he should be able to avoid any real suspicion.
"Not bad, I don't think I will get too many questions." He said.
"You look great Master." Jeannie said.
Jeannie still looked like the incredibly musclebound Kim Chizevsky. As impressive as he looked, he still paled in comparison to her physique. As much as he hated to say goodbye to those muscles, he really found it hard to think with her in her present form.
"Jeannie, would you mind going back to how you looked when I first met you?" Dave asked.
"Certainly Master." There was a flash and the familiar form of Jeannie when they first met appeared before him.
Dave looked at Jeannie realizing for the first time they haven't had any real conversation between the two of them.
"So what do you think of the world, seeing it again after 70 years? A lot has changed eh?" He asked.
"Yes Master, a lot has changed." She said simply.