Once you're inside, try to touch the underside of your belly button, and you should feel something like a golf ball. Short fingernails, clean hands, and some lube are essential. The best way to find your prostate is to stick a finger up your butthole.
When a guy blows his load, a big part of that load is fluid from the prostate to help the sperm swim toward an egg, though in most cases it just lies on your stomach and turns into a sticky mess. The prostate is a small, walnut-sized organ between the end of the penis (the part that's inside your body, not the end of your exterior shaft) and the bladder. The most efficient way to get there, as anyone over the age of 35 knows from going to the doctor, is through your poop chute.
This kind of orgasm-which lasts longer and is far more intense than a penile one-only comes from massaging the prostate.
