From Matt's Wife: One thing we do with Matt along with edging is for him to drink lots of fluids. It thins it out and just seems like there is alot more.

You can try 'edging'...ie., aproaching orgasm and stopping stimiulation several times. This will certainly result in a larger and more powerful orgasm and ejaculation.

Various dietry items are reputed to help increase semen volume including zinc. There are others which you will find by researching on google etc.

Most of the commercial products for incereasing volume are apparently just concoctions of these same compounds that you can make up for yourself at a fraction of the cost.....