For ages, I thought one had to buy a special tube in order to have sex. The tube would be attached to the genitals of each party, and conception would somehow occur, following an unspecified exchange of bodily fluids.
A childhood belief about sex

others believed things like this
- if you eat toothpaste straight from the tube, you will get worms— wormelow
- i used to belief that tampons were rolled up pads in a tubeAnon
- I used to want hemmoriods so I could use a "float tube" in the tub and have a cushy toilet seat like my dad.— Tami
- in grade school, i used to believe that test tube was a naughty word and was embarassed to say it.— miss sara
- I once asked a friend if test-tube babies had bellybuttons or not.
I was eighteen years old.Anon - I used to think that bodily tissues were kleenex sheets that grew in certain parts of your body.Anon