Thanks for the safety notice on that one SirW, I hadn't thought to explain anymore than what I had but it's a good idea to do so, especially with something that a lot of people may not have tried.

As with ringags you really have to look at the gag and then look at your erect penis. Is it going to fit through the ring. I have seen a lot of ringags that would not accomodate the "average" erect member. So if you are larger than average, and you can be honest with yourself, then you need to really scrutinise the gag size. Otherwise you're in for a lot of scraped skin or some severe frustration

I find that if you want to use a gag for "simulated forced oral sex" then a jennings gag would be the best. True they do tire the jaw but no more than other gags as long as you don't open them too wide, and I would hope you wouldn't be fucking your sub's face for hours! The other point tht SirW brought up is a good one. Ring gags by their design are positioned close to the teeth and are made of a stiff material. So any forceful action that may cause the gag to move in the mouth (ie your cock pushing it) and abrade the teeth and roof is not a good idea.

Jason