Aaahhhh... great topic all! How can one not love anything to do with edging... in any sexual form? Anal edging is exquisite, and we have indulged with toys, as well as a fist or two! My fiance can roll along and orgasm with a predictable and measurable buildup vaginally, but when I insert a finger or more, or a plug or dildo into her ass, I have more input into the process and outcome. We both enjoy the wild abandon and torturous hanging there at the precipice of the great fall that is orgasm... in fact, it is a central theme to most of our play sessions, which usually last for hours... and have lasted entire weekends! I cannot fist her due to my large hands, although she loves my trying, especially if I am slowly working her ass with a plug or dildo! Again, letting it just slip to the widest part, then holding it and pushing it deeper back into her seems to bring about wonderful results.
As for me, we have several 3-4"wide dildos and one 3.5" plug that she uses to hold me at that point when to expel it would be a relief in some way yet having it buried again right at the last moment when it is stretched to the max only re-ignites the ecstasy.
The best example we have of this in our playtime is when I tell her of my desire for a second fist inside my ass, which she usually can tell by the way I am pushing out against her deeply buried hand. I can feel my heartbeat jump as can she when her other hand's fingers, slathered in Crisco, make contact with my tightly stretched and thinned anal lips, and begin the exquisite slide inside me. This is a slow, pain/pleasure stopping of time and space, our room flooded in blacklight, a disco lazer light show tracing patterns on the ceiling and a strobe light flash-stopping our scene in a skipped frame quality that puts us both into an erotic trance that enhances the orgasmic flood of time when at last she is buried to the wrist with both hands inside my rectum.
Moments pass as the music and lights and amazing reality of the event are the only things we know. Slowly, she moves about, in and out, adjusting where she feels she can go, and I am silent or moaning or grunting in pleasure, indescribable otherworldly pleasure. She will slowly withdraw both, regaining that over the top stretch, dragging my body toward her by my anus! I go off, anal orgasms flooding my entire body, and she pushes back into me. This happens with various iterations and time until I simply must cum, which depending on many factors, may take a few minutes of stroking my cock to upwards of 30 minutes or more of tortuous edging and frantic flailing of my cock before, at last, fully stretched, exposed and opened wide, I explode.
Yeah... anal edging is wild. Must try Susie's rib cage play!!!