How would you feel if I told you I was in love with my brother?
I would be curious why you felt that way. Is it love or do you admire him?
No, I mean that I'm in love with him.
I think it's good that you are aware of your feelings and aren't hiding from them like many people do. But, it probably isn't something you should try to continue with as siblings shouldn't be in romantic relationships.
We can date, it's wrong to be sexually attracted to someone.
It sounds like you know what should and shouldn't be done, but even dating would be frowned on. Have you talked to anyone about these feelings? Does your sibling know? If this isn't a mutual situation, it might be time to step away and look for other people.