Automatic sex speed (almost) anywhere (Patreon)
Content
Koikatsu has a "Girl leads" mode that randomizes the animation speed. This plugin adds a similar functionality to basically any Unity Mono game. It does so by changing the time scale (the speed at which time itself progresses in Unity). Simple and nasty.
Disclaimers:
1. This will randomize the speed of everything (dialog scenes, minigames, etc.). In the event you don't want to play dialogs at randomly changing speeds, you can disable the plugin manually in the plugin settings.
2. Messing with the time scale is generally not a good idea, and it will almost certainly cause some games to malfunction or crash. Though that didn't happen in any of the 4 games I tested it with, please understand that if it does, there is nothing I can do about it.
With that out of the way, here it is: https://github.com/Sauceke/TimeScaleRandomizer/releases/download/v1.0.0/TimeScaleRandomizer.zip. You must already have the correct version of BepInEx installed to use it. Doesn't support IL2CPP, but I can add it on popular demand.
In the plugin settings, you can change the range of allowed speeds ("Time Scale Range"), the range of how long to wait between speed changes ("Waiting Time Range"), and the range of how long the transition between two speeds should last ("Change Time Range"). Everything is selected at random between these bounds.