In the 3rd grade a few of us girls and boys paired off declaring we were going steady. Trying desperately to emulate teenagers' "going steady" behavior, we went to the movies sitting with arms around each other. When my boyfriend put his arm around me, hand hanging down towards my (barely developed) breast, I remember having panicky thoughts like "Oh my gosh, is this sex? Oh no, I'm going to get pregnant." For weeks after, I spent hours in front of the mirror wondering if my tummy was getting big and how I would explain this to my parents.
A childhood belief about sex

others believed things like this
- I used to believe my thoughts came from my tummy.— lollypop
- I spent ages wondering what a bart ender was as a child without realising that it was actually bar tender.— Heather
- I thought that the difference between girls and boys was that girls have teeth.
Anon - I used to believe all babies came out as girls and later on in life some of those girls turned into boys — Tom
- I believed that if I swallowed my phlegm I would die. I spent hours spitting it out into the toilet.— chunky munky
- I used to believe that you had to have sex for 24 hours to get pregnant.— Heather