I like it when they suck and suck, you cum but they keep sucking and they suck the soul out from your cock.
I don't know what it is, the orgasm makes your cock so sensitive that it's slightly painful but I Imagine that as the closest to heaven a man can be.
You don't get that from pussy.
My pussy eating skills I believe are 5*, I'm not happy until the girl loses control, some try to push away than grab on for dear life. I live for those two orgasms.