During ejaculation, SPERM, which is carried in a small amount of mucus-like fluid, leaves the EPIDIDYMUS, and travels up the VAS DEFERENS (there is one from each TESTICLE) and past the SEMINAL VESICLES, which sit atop the PROSTATE GLAND. The SEMINAL VESICLES contribute about 70% of the fluid volume that makes up SEMEN.

The fluid excreted by the SEMINAL VESICLES contains:

FRUCTOSE (a NATURAL SUGAR)—to give energy to the SPERM and help it to swim

CLOTTING FACTORS—to keep the SPERM in the female reproductive tract longer

PROSTAGLANDINS—hormones which suppress the female immune system so the VAGINA doesn’t react to the SPERM as if it were an invading bacterium.

AND:

ALKALINE FLUID—which neutralizes the acidity of the male urethra (from residual urine—PEE and CUM pass through the same tube) and the acidity of the VAGINA (the normal pH of the VAGINA is between 3.5 and 4.5. This slight acidity helps to kill bacteria in the female reproductive tract, but it also makes it a hostile environment for the poor damn SPERM).

The normal pH of the fluid provided by the SEMINAL VESICLES is between 7.2 and 7.8, which makes it slightly basic, and helps to account for that BLEACHY, CHLORINE-like smell.

FUN FACT: 1 in 5 people don’t have noses sensitive enough to detect the smell of SEMEN.

You’re welcome,
Will