Sure, I could, and would, say that. I would also say that the vast majority of genres are stuck in their own ruts as well. As for what should be done, seeing more pieces written from alternative perspectives would be nice, but that doesn’t really apply to weight gain stories, more to wider genres (Fantasy, Sci-Fi, etc.) As for this genre in particular, there are a few ways to make a piece which feels original.
1) You can utilize an interesting for of MacGuffin which hasn’t been used before. This is definitely the hardest one to use, because pretty much everything has been done before.
2) You can be very clever and original with your triggers, so that your description of the TF feels refreshing and new. This, again, is a lot harder than it would seem, especially for a subgenre like weight gain. How many different ways can you really describe someone growing heavier?
3) Lastly, and this is the one everyone forgets, you can remember that part of what we’re doing here is telling stories. The weight gain itself doesn’t have to be the centerfold–if you can make it serve a broader narrative, that more than anything will make a story feel original.
Bracken's Corner 