my first impulse advice would be to tell you to stop having a crush on your sister...my second would be to tell you to stop having a crush on your sister.

and my third would probably go something like "there have been people before you with the same thoughts i'm sure, do NOT act on it. if you're religious..it's a sin. if you're not religious..it's morally wrong in a lot of ways..if you have no morals..i will say again..this is MESSED up."

:D hope that helps

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