What are you afraid of? You think they'll turn you gay? They've got "gaydar" (like radar) they can tell if someone's gay.
I've lived around and worked with lots of gays & lesbians, they never bothered me or made a pass, in any way at all.
I don't think it's normal & I understand it but there's lots of things I don't understand.
As long as they don't bother me, I don't care what they in their bedroom or what you do in yours? It's none of my business.
just sayin'