>>19751648 (OP)start with seeing if your pc can run the software first. here are 2 guides to get comfyui started, and then the actual workflow for vids
https://rentry.org/comfyui
https://rentry.org/wan21kjguide
if you are able to get all that up and running, the vids for facefucking and cumshots will be easy to do. they are just prompts / loras (smaller models that are trained for a specific instance)