That spasm you feel when you ejaculate? That's the prostate hard at work. The rest is largely sperm and seminal vesicle fluid and these ingredients mix during orgasm.
What this walnut-to-plum-sized gland does is secrete a slightly alkaline goo that makes up around a third of a man's semen. If you're a man or have one in your life, take a moment to put your finger on what the prostate is, how prostate massage is done, what it feels like, and why you should or shouldn't be afraid to try it.
