2. In old debauchees, who have become satiated with normal sexual intercourse, and more or less impotent, and also morally depraved; and who resort to pederasty, in order to excite their lust with this new stimulus, and aid their virility, that has sunk so low psychically and physically.
3. Traditionally, among certain barbarous races that are devoid of morality.
II. As a pathological phenomenon:—
1. Upon the basis of congenital contrary sexual instinct, with repugnance for sexual intercourse with women, or even absolute incapability of it. But, as even Casper knew, pederasty, under such conditions, is very infrequent. The so-called urning satisfies himself with a man by means of passive or mutual onanism, or by means of coitus-like acts (e.g., coitus inter femora); and he resorts to pederasty only very exceptionally, as a result of intense sexual desire, or with a low or lowered moral sense, out of desire to please another.
2. On the basis of acquired contrary sexual instinct:—
(a) As a result of long years of onanism, which finally causes impotence for women with continuance of intense sexual desire.
(b) As a result of severe mental disease (senile dementia, brain-softening of the insane, etc.), in which, as experience teaches, an inversion of the sexual instinct may take place.
Passive pederasty occurs:—
I. As a non-pathological phenomenon:—
1. In individuals of the lowest class, who, having had the misfortune to be seduced in boyhood by debauchees, endured pain and disgust for the sake of money, and became depraved morally, so that, in more mature years, they have fallen so low that they take pleasure in being male prostitutes.