BadBoy@TheWheel
DT3's Twinkie
You still cant give me a decent reason of why it's so bad, though, can you?
I have never had a sister, but if I did, I cannot imagine looking at her in that way, she's family, the bond is different than sexual.
The thought of it makes me cringe, if we have not evolved past the the ability to only see sexual opportunity, then we aren't a civilized society, if I cannot subdue my sexual urges good enough to keep my pecker out of a sibling, then there's something wrong.