Oral stimulation is a fantastic way to greatly intensify a person's pleasure.

As great as the process is, it is more often than not what is specifically required to trigger a person's orgasm. The reason has to do with the fine art of the mechanics that we have developed over time and have come to rely upon to bring us to the brink of an orgasm. If we are off the mark a bit either the orgasm won't happen, or, it will often not be as pleasurable.

Oral stimulation will do wonderous things yet in and of itself is not always what we require to trigger an orgasm. Very often in the final stages of peaking a guy's arousal he requires stroking as well as oral. This is not unusual so please do not think that there is anything wrong with him or in your technique. It is just the way we are wired.

You provided the proof of this in your post by stating that you either need to stroke the shaft or accomplish the same via intercourse. The alternative is to have her provide the stroking at the same time she is also stimulating you orally. This becomes a dynamic duo and results in some very intense sensations, particularly if she rubs a finger back and forth along the Frenulum!