Help /lounge, I love my sister

Over the past year I've been trying to lie to myself, to think on something else, even got laid and tried to fall in love with other girls, anything but admitting what I, deep down inside, already knew.

I love my sister. Not in the way most brothers love their sisters, but in the way a man loves a woman. Not because of some silly fetish either; when I say love, I mean real, "I'll go to the end of the world for you" love.

My sister is only one year younger than me, making her 20, and currently doesn't have a boyfriend. She's pretty, at least to my eyes, but this is not fueling this. It's her personality. I like no other girl this much. We always had a lot of chemistry,  it's as if we were engineered to be together. Only we happened to share our parents. I'm sure if we had been born in different families, we would be the happiest couple in the world right now.

Lately, I realized I could not give up on this, but I'm kind of scared. I know this is fucked up. But I don't know what to do. I've been avoiding her for a couple of weeks, and this is causing her suffering, which in turn breaks my heart. I don't know if I should confess my love and face the consequences of experiencing a kind of love that's considered unacceptable in our society, even from her, or just let it pass and die inside.

Help me /lounge, what should I do? I think she may be feeling something similar for me becuase we are very close and she considers me attractive, but I don't know to what extent this may only be wishful thinking on my part. Knowing her, I'm sure she won't be angry at me if I tell her how I feel, but I don't know for sure if she'll feel the same about me. I'm positive our parents and everybody else in our family and community will oppose such love, but if she loves me, I'm willing to face all of them or move to some other country to start a new life with her. But I wouldn't want to put pressure on her or make her feel uneasy, so while I think I should confess, I'm not 100% sure and I don't know to what extent what I think is distorted by my strong affection for her.

I'm >>1. I think I'll confess up front tomorrow. Thanks all who posted, for advice or lulz. It made me think on this issue and see it from different perspectives. I've decided to confess. Knowing her, even if she doesn't have the same feelings for me, she won't avoid me, she's not the avoidant kind, or the kind that would get scared of me if I said that.

While I would love to do what >>17 says, I'm positive it's not just sibling care plus some lust, because lust plays the smallest role here. I wouldn't be doing this for sex, and my sister is pretty but there are prettier girls out there (and I would still like her if she weren't this hot). It could be sibling care if I didn't feel so attracted; I'm even getting this nervous feeling in my stomach when I get too close to her or we're talking about dates and such. If I'm to think of me x years in the future, married and living in a different house, I can only picture myself in this situation with my sister, no other girl has ever rang so many bells and made me see her in that way so much and so strongly.

I'm hopelessly in love with her, and it's only honest, to her and to myself, that I confess it right away and stop avoiding her. I'm not sure if she'll accept or not, but I'm sure she won't reject me and kill our sibling relationship for it.