Is this a super o? Am I doing something wrong?

Hey, folks!

I've been lurking here for a while, but I haven't really joined the conversation until now. I have an Aneros Progasm, and I've been using it intermittently for a couple months.

At first, it didn't do much for me. But over the last couple of weekends, I seem to have made some progress, including intense orgasms. Even so, I'm not sure if what I'm feeling constitutes the fabled "super o."

If you'll indulge me, I'll try to describe the sensations and the result, and hopefully the more experienced members of the community can give me some guidance.

I usually lay down on my back, with my legs and arms straight. With the Aneros inside me, I primarily clench my anal muscles (the ones used for holding in a bowel movement). This draws the Aneros inside, and feels pretty good. I'll sometimes incorporate PC muscle clenching as well, but this doesn't seem to have as strong an effect.

Here's where things get interesting. Sometimes it happens in 15 minutes, and sometimes it takes an hour, but I'll start to feel contractions in my anus and in my cock. If I keep clenching and relaxing my anal muscles, with periodic holding, my cock will get extraordinarily hard and start pulsing, accompanied with trembling throughout my body. Sometimes I even moan involuntarily.

Soon after this, I'll feel the swell of an orgasm, and my cock will pulse very intensely. Then the orgasm hits and I ejaculate a small amount of what appears to be semen. It's whitish, but a little less thick than my usual ejaculations.

After a few more seconds of strong contractions in my cock and deep in my ass, things subside and I seem to enter a refractory period.

Here's my question: does this constitute a super o? I was under the impression that I wouldn't actually ejaculate, and if there was discharge, it would be clear.

Am I using the right muscles? Am I accidentally triggering a different kind of orgasm (penile or anal?). I'd be grateful for any advice you might have for me.