I don't know if that's so much a case of asexuality as having very specific buttons. I'm always hesitant to put any kind of label on anything, because it can be rather limiting (even though I've finally taken 'lesbian' just for the ease of it)
On the other hand, I definitely don't think you should conform to something like sex just because others say so. (just don't become militantly asexual... -_-; )

It's a hard concept to grasp for me, because I am very addicted to the intensity of sensual feelings in my own life, but I'm certainly willing to accept someone else's differing sexuality, even if I can't understand it. ^^;