>>58376204I'll break it down for you. Novelai makes it pretty simple with all the tools, but I'll try to break it down into steps for you.
1. Switch to furry model instead of anime 4.5. Furry model doesn't necessarily sample only furry art, rather, it samples from places like deviantart, furaffinity, e631, etc where furry art is more prevalent, rather than the anime model, which samples from pixiv and the like. The reason I do this is because TF fetish arts are much more prevalant on sites that furry model samples from, to the point where "transformation", "transformation sequence", "forced transformation", "3/4 panel sequence" are all recommended tags in the system that aren't present when you use anime model.
2. Separate the main prompt from the character prompt. You only need 1 "character" as long as you detail that said "character" is in 4 frames and is transforming.
3. Add your tags, and I'll use picrel as an example. For the "base" prompt, I used the following tags: "transformation, 1girl, fusion, clothes changing colors, transforming into someone else, startled, scared, hair changing, genderswap (mtf), gender dysphoria, male to female transformation, morphing, asymmetrical clothes, nsfw, jiggle, motion lines, {3 frame sequence}, {sequence}, poof, bedroom, smear frame, gradual transformation, {{partial transformation}}, magic," which is enough to tell the ai that it's generating a transformation sequence.
4. Click add character and put your tags in, they should all just about follow the same format.
"girl, man, brown haired man, sideswept hair, young man, boy, blue eyed man, transforming, {Delphox (pokemon)}, transforming clothes, startled, man transforming into Delphox, fusion, shorts, asymmetrical clothing, solo, nsfw, panicking, motion lines, jiggle, morphing, anthro, huge breasts, :o, simple eyes, human to anthro, thicc, voluptuous, eyelashes, cute, hair falling out,"
5. Keep the image settings on "normal landscape". Don't go for large.