Is it normal that i can easily achieve an orgasm?

When I say easily, I mean REALLY easily. When I cross my legs and squeeze tightly a few times I can literally receive the same amount of pleasure from masturbating. It's insane! And if I even just think of my turn-ons without any physical contact I can start heavy breathing/panting, etc. Is this normal? Can plenty of other women do this- or am I a rarity?