Fluttershy blushed so hard that her whole face was turning red. The only thing that prevented her from squealing and dashing out of the room was the thought that the doctor examination her was a mare. Still, it felt very embarrassing sitting there with her legs spread wide.
"S-so, doc," said Fluttershy after a several seconds had past, "d-do you think it could be a allergic reaction?"
The doctor suddenly looked up, looking as if her question had surprised her. "Allergic reaction?" she said, "I've seen some bad allergic reactions in my life, from Poison Joke to peanut butter, but this...this can't be an allergic reaction! If it was, it would be a very bad one indeed."
She was right. Fluttershy's boobs were bigger than grapefruits now, which, during its growth on her way to the hospital, had wrecked her crotch bra. If it was an allergic reaction, it would be a terrible one for it so swell her tits to such a ludicrous size.
"W-well, do you think it is?" Fluttershy asked.
"There's only one why to find out," said the doctor, narrowing her eyes. "May I?" she asked, indicating what she wanted to do with her hooves.
Fluttershy swallowed. "G-go ahead," she said.
The mare squeezed her left boobs, and Fluttershy had to struggle with all her might not to moan. Her assets felt extremely sensitive, and the way the doctor squeezed it was sending jolts of pleasure through her body.
A thin line of milk squirted out of her nibble, and the doctor took a step back, looking relieved but still worried. "No, it's not an allergic reaction," she said, "or else something entirely different would have come out, not milk."
"But if it's not a reaction, then what is it?" asked Fluttershy, growing even more worried, "Could I be p-p-pregnant or something."
It was the only conclusion that she could come up with, even though it was ridiculous. She didn't have any partners, or any slip ups in her life. So far as Fluttershy's memory goes, she was still a virgin. But there could still be a chance...
"No, no, no!" said the doctor, "It can't be that. Not even a pregnancy could have this effect on a mare's mammeries. Yours are far too big! No, something else is going on here. I suspect that you might have eaten or drank something that caused this or it could have been-" she looked at Fluttershy suspiciously "-a spell gone wrong."
"No, I would never put a spell on me," said Fluttershy, trying to suppress her sudden outrage.
If there was one thing that she would never do, it was draw unneeded attention to herself. The doctor's sly accusation made Fluttershy rather angry.
"O, well then," said the doctor with a shrug. "If it's not magic then I don't know. I could prescribe you a few things that could stop swelling."
"No thanks," said Fluttershy, jumping off the table, wincing as she felt her breasts jiggle, "I'll be fine."
She wanted to leave, but suddenly remembered that her crotchboobs was still exposed for the world to see, and she couldn't go out in public like this.
"Umm...you don't happen to have anything that I can use to cover...these, do you?" she asked, turning to the doctor.
"I think I do, but it's not clothes, though," said the doctor.
She reached in a drawer and pulled out some bandages. Later, Fluttershy was leaving the clinic, some bandages tied around her breasts. It was skimpy and it made her look stupid, she knew, but it was the only thing she had to conceal herself, provided that her boobs didn't grow again.