. The force of the sexual impulse prefers to occupy
itself with the overcoming of this loathing (see below).

*Sexual Utilization of the Anal Opening.*--It is even more obvious than
in the former case that it is the loathing which stamps as a perversion
the use of the anus as a sexual aim. But it should not be interpreted as
espousing a cause when I observe that the basis of this
loathing--namely, that this part of the body serves for the excretion
and comes in contact with the loathsome excrement--is not more plausible
than the basis which hysterical girls have for the disgust which they
entertain for the male genital because it serves for urination.

The sexual role of the mucous membrane of the anus is by no means
limited to intercourse between men; its preference has nothing
characteristic of the inverted feeling. On the contrary, it seems that
the _pedicatio_ of the man owes its role to the analogy with the act in
the woman, whereas among inverts it is mutual masturbation which is the
most common sexual aim.

*The Significance of Other Parts of the Body.*--Sexual infringement on
the other parts of the body, in all its variations, offers nothing new;
it adds nothing to our knowledge of the sexual impulse which herein only
announces its intention to dominate the sexual object in every way.
Besides the sexual overvaluation, a second and generally unknown factor
may be mentioned among the anatomical transgressions. Certain parts of
the body, like the mucous membrane of the mouth and anus, which
repeatedly appear in such practices, lay claim as it were to be
considered and treated as genitals. We shall hear how this claim is
justified by the development of the sexual impulse, and how it is
fulfilled in the symptomatology of certain morbid conditions.

*Unfit Substitutes for the Sexual Object. Fetichism.*--We are especially
impressed by those cases in which for the normal sexual object another
is substituted which is related to it but which is totally unfit for the
normal sexual aim. According to the scheme of the introduction we should
have done better to mention this most interesting group of aberrations
of the sexual impulse among the deviations in reference to the sexual
object, but we have deferred mention of these until we became acquainted
with the factor of sexual overestimation, upon which these
manifestations, connected with the relinquishing of the sexual aim,
depend.

The substitute for the sexual object