I'm really into being gagged (that's why it entered my nick) and being muted with a hard rubber gag does feel sexy. Before you've tried it you don't realize how slippery your jaws and lips will feel after a while. people in movies who are gagged (cloth or soemthing heavier) always keep control of their faces though they can't speak a word. That's part of what made those scenes so sexy when you were a kid; the contrast between fully alert and angry eyes and mmphing mouth that just can't say a thing.

Ring gags are a personal favorite of mine. Oh to be silenced with a gag that also makes me surrender my mouth to any hard cock that peeks in - the classic "give-head position", on your knees, hands tied behind your back and secured to your tied feet, and you're made to suck one or more cocks - take it deep in, baby! - is an image I'll get realized some day not too far from now.