1 because she?

hi, so today i met my sister's boyfriend and that's when my life turned upside down.when we arrived at his house i saw the most beautiful person in the world sitting on the couch, she was so beautiful and sexy. Don't wait there sexy!?. I never saw anyone like that and the first person I see like this is she, but not !, it can't be, she and a girl and I shouldn't like her that way, right? the more I like, how, why? Am I a freak? should I like boys not girls ?, but why do I feel nervous around her? and my hands start to shake and I can't say a word without starting to stutter, I don't know what's going on with me, am I in love ?.

but at last I met my sister's boyfriend his mother the father and the wonderful sister, we had dinner and then we left, but I can't get her out of my head in any way I just think of her, that makes me think more and more that I am in love, because I read in several books that this is what happens when you are in love, but I still do not accept being in love with a girl because is this a sin right? is what my parents told me and I don't want to go to hell!, but at the same time I can't stop thinking about her mouth and how wonderful it would be beijala but I'm not going anymore think about it.