Because it is wrong and sick and unnatural! There are plenty of girls out there for you , why would you get hard/want to touch your sister? If you want anything, please do it in front of your parents. If it is that okay for you, then them being present or aware of it, should not be a problem.
I get hard looking at my sister
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Because it is wrong and sick and unnatural! There are plenty of girls out there for you , why would you get hard/want to touch your sister? If you want anything, please do it in front of your parents. If it is that okay for you, then them being present or aware of it, should not be a problem.