Humanized Equestria Story. Taking place after the episode: Secret of My Excess. Aged 18+ in case anyone was wondering.

It’s amazing what greed can turn a dragon into. One moment, a dragon is given some measly trinkets, the next thing you know he’s rampaging through town as a several stories tall monster.

Being the huge nerd Twilight Sparkle is, she would not let this incident go without further research. Especially since so little is known about dragon physiology. Perhaps she could reproduce the effects in a more controlled environment… and at a slower pace than before. She’ll have to trigger his greed with something he couldn’t exactly steal or own… something like herself.

What's the worst that could happen?

Contains:
Chapter 1: Light action, seduction, hand job
Chapter 2: Medium action, oral
Chapter 3: You should be able to piece this puzzle together