How to tell my family to stop being nosing about my sex life.?

[days]

I am a 20 year old virgin. I am not bad looking at all. I am attracted to girls but I've just never really cared about sex. It's always just been "whatever" to me. My family says they know I'm a virgin and some even think I'm gay. I don't have sex with anyone of any gender. I wish they would stop. I want children and kids and all that eventually but right now I just don't care