lesbian

Is it normal for girls to experiment with sex together when they're not lesbian?

Sam
asks:
A couple of years ago I was over at my best friends house and we were in her living room ready to go to sleep and we were just talking and she asked me if I masturbate and I told her I did and then she started to rub her clitoris and then she started to rub mine. After that she asked me if I had ever kissed a girl and I said no then we started to make out and stuff....