I noticed that there are many plug gag in the game, which is very cute, and it has inspired me to come up with many new ideas.
Have you ever thought about adding a removable plug to plug gag, perhaps with a common key or lockpick, so that the character can drink potions or eat even while being strictly limited in her vebal by the gag?
Of course, the most important thing here is that we can see the cute little tongue in her mouth, as well as the saliva that drips down her chin. Also it would be wonderful to be able to see how strict the plug is in her mouth in a more direct way!
We could even come up with the idea of a very strict plug gag that locks back up after the plug is removed for a certain period of time, which would be a lot of fun!