A childhood belief about sex

In high school, like until I was 17, I knew gay men had a variety of ways they had sex. I did not, however, understand what scissoring was in terms of lesbian sex. I just thought there was mostly hand activity involved. I was also a very politically literate kid (contradictory, I know) and was very concerned with the problem of female genital mutilation in many countries. So at lunch one day one of my girl friends made a joke about scissoring and I was SO FURIOUS at her that she would make a joke about such a completely terrible thing that was done to women and girls. She explained to me what scissoring really was and I was mortified at my mistake.

Also, when I was in 3rd grade, I sort of had a generic understanding that sometimes people had something called sex and sometimes that made babies. But I really had no idea what the word sex meant at all. So I overheard some of the bigger kids at school talking about their friend and said she was bumping and grinding with her boyfriend and they got pregnant. I was confused and decided it must mean that if a boy bumps into you and sort of rubs against you as you walk past, even on accident, that must be what sex really was. So later that week, a boy bumped into me, brushed past, and I fell down. Went home in tears because I was sure I was pregnant. Told mom a boy bumped and grinded me and now I was pregnant. She started crying because she thought something terrible happened to me, and asked me to tell her exactly what happened. I did, and she started to laugh which scared me more. She then said that was just an expression for sex and had nothing to do with someone bumping into you. Still didn't understand what sex was but was happy I couldn't do it by accident. Got the talk officially a few weeks later when I walked in on her and dad.