This Lora was created for a bounty and the bounty requester suggested we share the files for all users here to use, which is pretty awesome. The description for the Lora I'm borrowing from the bounty post:

Looking to have a Lora created for generating G-string style panties compatible with SD1.5 models. A G-String is similar to a thong in the front but provides minimal coverage of the buttocks. The back is usually made up of a single string of fabric. This back style is sometimes referred to as a "T-Back" ("T-Back Thong" is the tag on sites like Pixiv) or less commonly referred to as a "T-String". The back of micro bikini bottoms often resemble this style. Panties of this style that are highleg or high-waist are sometimes referred to as Y-Back.

https://en.wikipedia.org/wiki/G-string

I am requesting this because this particular panty style is difficult to prompt for consistently. The term thong and G-string are often used interchangeably and so prompting G-string often results in thongs more often the not. The "string" term also seems to occasionally trips things up during generation. Available loras that create similar results tend to be heavily associated with micro bikinis which causes issues when trying to use alternative tops (shirts, tank tops, camisoles, etc). I plan to use this Lora with primarily anime style models with female subjects across body types (petite, plump, fit, etc). If a trigger word is used I would prefer something like, "gstr" that is a bit removed from the usual tags.

So that's what this Lora should be able to recreate. The trigger words are gstr and ystr and it works well in animated/anime/comic style checkpoints.