After many years of masturbating as often as three or four times a day, I discovered something new about myself. I was reading some of the stories here and, as I usually do, started sprouting an erection. Unbuttoning my fly, I spread my pants open and looked down at my penis, poking against the front panel of my white cotton underpants, pre-cum stained enough that I could see the pinkness of the circumsized head and the darker slit of my pee-hole showing right through the material.
I grabbed the elastic waistband and peeled the soaking wet cotton off, hooking the material beneath my testicals. I keep my entire groin smooth and utterly hairless, and the clear fluid leaking from my piss-slit rolled down the shaft, making it shiney and slippery.
I found a story of male-female mutual masturbation (my favorite fantasy) and began slow, even strokes up and down the lenth of my penis.
At some point, I always like to grab and fondle my smooth balls, but this time, something different happened. I pulled my balls down, stretching the skin tight the whole length of my penis and within seconds, I began to feel the excruciating pleasure of an orgasm, which I could no more control than my own heartbeat. As I watched, stunned, it throbbed once, twice, three times and then, like a mouth sucking at air, my pee-hole opened and closed rapidly a couple of times before a long rope of sperm erupted from the tip, painting my torso from shoulder to belly button. I spasmed half a dozen more times, shooting sperm each time in unbroken spurts all over my arm, chest and stomach.
It was the most intense orgasm I ever had and throughout the entire experience, the only movement was the expanding and contracting of my penis head as it climaxed and the only thing I touched were my testicles.