I started wearing a plug daily about two months ago. I started small and quickly moved to a 5" diameter plug. It is very comfy. However, I can't seem to get enough and want to go bigger. About three days ago I purchased a round ball plug that is 7" diameter. It feels AMAZING once inside my ass, but inserting and removing is painful. Should I continue with a smaller plug to get the desired stretching point or try getting used to the larger one. I'm not sure the best way to get my asshole stretched permenantly. Help!