there is something called intersex, which is not a sexuality but a way people are born, its like they are both male and female, but yeah like AnnabethChase101 said sex is what gendr you are born as and gender is what you identify, their are certian names for that such as Genderfluid,Transgender,Non binary. Also BlootshotTheMemer2011, what do you mean by there are 2 sexualities, Can you name them because im a bit confused