If you provide an initial image from a dressed person, you may undress her. Please use with care...
You may use nude initial images and this should work in most cases.
And please... don't forget to publish in the "adult" category!
Have fun!!!
Some hints:
The generated images/video format will be similar to the original image: portrait, square, landscape...
Before attempting to produce a video, which could sometimes give unexpected result, it is often better to start generating some images (which costs only 1 token) and then use the generated image to generate a video.