User blog comment:Per3ylove/percy jackson/the lost hero/sonof neptune/@comment-3205610-20110210034526/@comment-1747822-20110213034818

I know, since Annabeth's mom is Athena, and Athena is Zeus' daughter, which makes Poseidon uncle, and Percy is Poseidon's kid, which, means Annabeth is Percy's niece, but this doesn't count, because the godly side doesn't count, but if they both had the same godly parent, they can't date, and this counts because gods are their own deity, which is why Zeus married Hera, his sister, which means I'm probably confusing you with my babbling. ;-)