Dark Mage

Magic is real, and nobody else knows. You're in classes with a gorgeous, busty girl, and you're in love. You do her homework and she thinks you're friends. She's infected with an unknown bug, but the microbiology prof has an experimental drug that may cure her. It turns out that magic used to exist, until there was a plague that made everyone immune to it. The drug has cured her of the plague, the first person in ten thousand years, and now magic can find her. When a suggestive picture of her appears on the web, it channels all the magical energy that has nowhere to go into her breasts, making them enormous. You have to isolate the plague bacteria and re-infect her, and learn to control the magic that's swirling around her, before the magic overwhelms and kills her. That means learning to control it, becoming the first mage in millennia, and deciding what to do with an insanely busty girlfriend, a torrent of magic, and a world full of girls who need bigger breasts. Can you do it, and will she accept your help? Will her flirty younger sister stay out of your way? And what about all the other girls?