text: Show most recent or highest rated first.I used to belive that my willy was a snake and if i wasnt careful it would bite
  I somehow got the sport of wrestling mixed-up in my head with the idea of a penis --- I didn't yet know the name of the male sex organ, so I called it a "rassel" because my father, from the deep south of the US, pronounced the name of the sport that caused all the confusion: "rassling". I suppose I was about 6 years old. My older sister straightened me out at some point.
  When i was very little I used to believe that if i pulled my foreskin back too far, the marble as i called it would fall out.
  i used to think that if girls were "flat" when they grew up...they would turn into a guy
  I am a freshman in college. i never really learned much about female physiology. up until i was a senior in high school i believed that females had two vaginal cavities. one for menstruation and one for everything else. this was because of a comment my biology techer made during class when i was a sophomore. she said she thought it was wierd that men had only one tube for both peeing and insemenating. I just assumed that it was wierd to her because females had two. needless to say, i was pretty embarassed when I found out otherwise from one of my younger (more experienced) friends.
  Sometime in elementary school, I had to go to the doctor for a physical. When I heard the doctor tell my mother "slight breast deformment" I was terrified. Turns out it was "slight breast development"!
  I used to believe that vagina was pronounced "bachina." It was my cousin's fault. She pronounced it wrong at the age of 6. I believed this until 5th grade.
  For as long as I can remember, I have always known that boys and girls had different parts "down there" however, until I was about 12, I had no idea what the male private parts looked like.
  Until I was about 7, I had never heard anyone refer to a males "balls" so I though that men just had a penis, and that was it.
  Then once I had heard about men having "balls" I thought that men had a penis, then near the tip of the penis, there was one ball on each side. Then when I was 12, curiosity got the best of me, and I looked it up online and found out just how wrong I had been.
  I used to believe that the woman's vagina was buried somewhere beneath that mound of hair; it had to be, because it never showed up in my cousin's magazines he took from his father.
  When having the 'facts of life' explained to me by an older male surrogate dad, I used 2 believe that pregnancy in the opposite sex was a result of kissing. We got to the sperm part being produced in the testicles...all well and good so far...then I asked 'well how does it get all the way up THERE?'
  "Hmmm...it isn't all THAT far is it?" he answered. 'Gotta be a couple of feet!' said I. He avoided that precocious 10-year-old in all locker rooms from then on.
  I always knew that if you kicked a guy in the, 'middle',it would really hurt him.I figured that sence females like myself don't have a 'middle',it would not hurt if something hit us in the loins.(And because of an episode of King of the Hill.)
  I found out when I was 9 after I crashed my bike and the peddle hit me down there that yes,it does hurt.A lot.
  When I was little I thought that vaginas were inside-out penises and that they were in the same spot as penises.
  Up until my very first sex education class in the fifth grade, I had no idea that there was a third hole down there. Needless to say it was quite a shock to my poor 10 year old self- figuring out there was another body part down there I hadn't even heard of!
  i always thought that the arby's 'hat' icon was a vagina because the top of the hat looked like what i saw when i looked down when i was sitting on the toliet. i never talked about it with anyone cause i thought it was such a weird thing. i thought it for years. (being a real young child)
  until one day, driving pass an arbys i seen that it was a hat and not the overview of a vagina. but still to this day i sometimes see that hat has a vagina
  my 4 year old brother once saw my 5 year old sister peeing and, since he didn't know that girls did not have a penis, asked his mom "why is she peeing from her butt?"
  I had a friend in college who believed that testicles were internal. She has 2 brothers and didn't know they hung outside the body until we told her. She was in her Junior year at the time.
  i used to believe that blo jobs meant u had to blow down ur dick 2 make ur balls bigger
  I used to believe that I had traveled to China and bragged to a cousin that my "booty's been to China". My mother overheard me and realized that I had misunderstood her when she had informed me of the proper name for my genitalia (vagina).
  I used to believe that, at birth, your parents had to use guesswork as to whether you were a boy or a girl. I even went as far as to write it down! I wondered why everyone in my Dad's office was laughing at me when I showed them the book that I had written...
  When I was 10 or so I tried to work out in my mind where exactly pubic hair grows. I was worried for a little while that it would grow inside my vulva, but my main concern was with men's penises. I didn't know men had testicles, so I guessed that their pubic hair grew all over their dicks. I didn't think sex with a hair-covered penis sounded too good, so I was relieved when I learned the truth.