Originally Posted by
zippy
How long between cumming? If you wait a day or two, volume should be a bit more. Also, how long do you masturbate? 'Edging' for hours can produce major cum volume. If your session is 15 minutes, I wouldn't expect as much. This also works that muscle, or can, that you talked about with the kegels...
Finally, how aroused do you get? And what do you use to do it? Vibrations, rings, rubber bands, whatever, can help create heightened stimulation, that maybe your hand just can't do.