A loRA made by NSFW on CivitAI: https://civitai.com/models/142948/succplant-xl
"Turns people into single-purpose plants 😉. To use, I found a weight of 0.7-1.5 depending on the model and prompt works well, with around 0.75 weight for upscaling. Prompting can make a big difference in results, so see example images for prompts. In general, "a succplant with a long mouth" will get some decent results. Throwing in "woman" will tone down the effect. Sometimes "legless" and "in a pot" will help get better results. Overall this lyco takes a good bit of messing with the prompt to get what you're looking for, but the quality and flexibility of XL is very fun."