The penis plays an important role in sex, but its day job is liquid waste management – 800-2000 mL of urine leaves the body through the penis daily, while one ejaculate contains a scant 2-5 mL. More fascinating facts about semen: did you know the seminal vesicles – those rabbit ears atop the prostate – contribute the most liquid by volume to semen? Now ya know about stuff that comes out of your penis.
Looking to have "The Talk" with your kids? This handy cheat sheet highlights the major players, you get to describe what they do! Download a printable copy here for personal or educational use. Good luck!