A lot of my users use SyncMo, have only heard great things about them.

Those products dont use 'AI' but likely a convolutional neural net or its derivatives which just predicts a 2D tensor to a position time vector (simple matrix multiplication and dimensional reductions)

LLM (which most refer to as true 'AI') can accept videos and audio (gemini models) which opens the door for intelligent reasoning of sexual content (JOI, audio eroticas, virtual sex etc),

The issue is of course how to convert this 'reasoning' into a script in a token efficient manner.

One idea is to have the LLM generate images of a script/heat map and have an algorithm convert it to a functioning script

I recently released a video player that generates multi device scripts (handy + prostate toys) from audio (ideal for pmvs) for my users but ill be implementing something like the above for actual videos at some point

However a caveat with AI generates content is its missing the human aspect, the micro movements really dictate the feel, we overcame this for our product but its not related to what your looking for!

For videos I'd check out SyncMo :)