Searching for a Story.

When I read a story I tend to save it. And well, a friend was talking to me. About a story he was gonna do. And the details he provided sounded similar to a story I read. But it was a story, I never saved. Soni told him about it, he said he won't write it till I find it. If I can't he Wong. So I'm hoping someone can help me.

The story, I think it was kind of like a Transformation and a Rape. What happened in the story was that a Regular stallion got went to the MLP Univers. And came across fluttershy. Something along the lines rape later happened. And slowly fluttershy gave in, but also turning into a real regular mare. And I believe this might have happened with a few other ponies. But I honestly don't remembered. Since it has been that long. I do hope someone can help me find it. I've been searching for almost a week. And maybe with help Of others, it could be found. And if not, well there will be a new story about it.

And Thank you to anyone who replies with hints or a link!