Best of both worlds

 Tiffany hasn´t always been Tiffany. At one point in time she was a fairly good looking guy named Luke who ventured into a bar late night.
He was looking for a girl to bang and he was rejected at every turn by those girls he approached. It wasn´t until the bar was about to close up that he found a girl willing to follow him home. She was kinda fat but looked cute in a way in the damp light inside the bar.

The pair engaged in an awkard sex session in Luke´s bed. 
When the moment of release came Luke felt an disorientation, then he was looking at himself from another perspective.
Besides from the strange vantage point and the wrongness he felt in his body he also felt that something was inside of him.
"It worked", his face said with a broad smile. "It freaking worked!", his exclaimed with a laugh.
"Get off me!". Luke was pushed away from the person underneath him that looked just like him. The guy hurried to a mirror and began exploring himself.

After looking down on his own body Luke began to realize that he was in the body of the fat girl.
"It´s a curse. I wanted to become male again but it was damn hard finding someone with a suitable who wanted to fuck my fat ass. Next time you and your partner orgasm you will change bodies just like we did".
The night ended with Luke being booted out from his own apartment by his bodythief.
Days later when Luke went to the bodythief to plead to get back his body he discovered that the thief was gone.

Devastated at first being trapped in a girls body, and a rather plump one in addition to that, he began to pull himself together and find a solution.
At first he actually tried to hit the bars for a victim to trade lives with but in the end it just felt wrong. He was no thief.
Instead Luke began to work out and eat healthier, and identified himself as Tiffany. Within a year she had reached a shape of her body that she was most pleased with. Thin but yet curvy.

Still she had a yearning for intimacy, but she knew what would happen when they had sex.
She pondered on the problem and found a solution.
Nowdays she has got an entourage of men willing to have sex with her, switch bodies and have sex again and switch back.
It was the best of both worlds.