I would have to say that I am asexual.
The common opinion is that asexuality is rare and unusual, but it describes something like 5% of adults, so is really not that rare. Low levels of sex hormones can explain some of those cases.
However, some people can believe they are asexual when in fact they are just suppressing sexual feelings, say if they believe sex to be dirty or ungodly.
While there are certain practices I don't believe in doing, or times where I don't think it's appropriate, but I definitely don't see sex as dirty. I just cannot say I have ever seen anybody and had that be my thought or physical response. I could be wrong--I could just be extraordinarily picky--but by this time I rather doubt it, and it may just be I should not have the expectation of a physical response on sight. Doesn't rule out meeting the right person and getting married, but still.