What do I need to tell her and my parents?

I like guys but none seem to like me back, so now i think I am starting to like this one girl. We've been best friends since we were born and we're 24 days apart. We have kissed before but it was regular and now I really like her and I want to kiss her more and maybe even French Kiss her. Our families both hate gays and biual people. I don't want to be an outcast but i really have feelings for her. My mom would literally KILL me if she knew i was kissing girls and especially her. I just don't know how to handle this problem I don't even think she likes girls better known DATE them!!! I really don't know what to do! I usually have a boyfriend and the longest I've been single was 4 days now it's been about a month. This guy at my church said he liked me but I don't know if he does or not because it was sup-post to be a secret but this girl got mad at him and told me what he said and now I like him but my mom can't stand him because at a football game he jumped some high school guys for being mean to my cousin and he saw I was mad. Now I think i like him but I am not sure so me and the girl I like are hanging out more to try and figure this out. But now I think I like both of them and I am bi. But I like him more. And ever since me and the girl I like first kissed I wanted more of that and now that this has came up I don't know what to do. I am just not sure if he's saying he likes me or if he's doing this to embarr me if I he did ask me out and I said yes then dump me a week later.So I guess thats all but I just don't know what to do. And it's all because I don't have a boyfriend(or girlfriend if i really like her cause I'm not sure and I get really offensive when people talk about her like her "friends" but she doesn't do that for me so why should I do that for her????)