Not for everyone, and one can certainly respect and understand when anyone considers it off limits. From my experience and that of others, the appeal of the "taboo" has always been a lure. From a physiological standpoint, it is an intense feeling that is not intended to rival the vagina....but just different. The vast majority of the body's nerve endings below the waist are right around that little hole and probably explains why. From a pure tactile sense, the vagina feels much better. Anal is just different....what I consider the "exquisite discomfort".
I also think there is a mystery nerve that connects directly to the mind...for all of you practitioners, you know what I mean.
:mf_ lustslow: