Weird experience when I was a kid

Hey girls! I have these weird experiences since I was 6 until 8 years old I did it three times and pretty much I got naked with my girl best friend and we start rubbing our vaginas or kinda like creating a "romantic scenario", not oral sex ( I didn't even know what the word sex meant). So yeah I think about it right now and it just sounds so weird, and I did it two times more with my sister and later with another friend. Have you ever experienced something like that or am I the only one? And also is that normal? Cause I don't know what to think..