Managed to find the LCG folder (Computer\HKEY_CURRENT_USER\Software\HotPink Games LLC\Lewd City Girls) Can't find a folder named "playerprefs" though, have I done something wrong?
Edit: Based on my experience with starting other games over, is it the FirstPlay folder I have to delete?
Edit 2: No it isn't....
Edit 3......: Managed to reset my progress by just changing the values of undies 1 unlocked, undies 2 unlocked, etc. to 0, playercoins to 0 and undies equipped to 0