Draw a vertical oval for the penis shaft
Add a rounded tip at the top for the glans
Sketch the scrotum as two connected rounded sacs below the penis
Draw the testes inside the scrotum as two smaller ovals
Add the epididymis as curved lines on the upper back side of each testis
Draw the vas deferens as two thin tubes rising from each testis
Curve the vas deferens upward toward the pelvis
Add the seminal vesicles as two small sac-like shapes behind the bladder area
Draw the prostate gland as a rounded shape below the bladder
Connect the vas deferens to the seminal vesicles and prostate area
Add the urethra as a tube running from the bladder through the prostate and penis
Outline the bladder above the prostate if including the internal view
Refine the outer contours and clean up overlapping lines
Shade or label each part if needed