Im 11 and lesbian and want to have some sort of sex with another girl how do i without my parents noticing?

you don't, your 11, give it a few years and wait and see what happens. girls are having sex way too young these days (I'm a 20 year old male... if I'm saying this, you know there is a problem lol) i know you think you know a lot right now at 11, but think back to when you were 6, how much have you learned in 5 years? it only gets worse as you, so just give it some time and figure things out. if you have to worry about your parents getting upset about having sex, then you are probably too young to be having sex