offense. This trivial incident left a profound impression on
his mind, and he recalls every detail of it, especially the sight
of his sister's buttocks,--round, white, and enormous as they
seemed to his childish eyes,--and that momentary vision gave a
permanent direction to the whole of his sexual life. Always after
that he desired to touch and pat his sister's gluteal regions. He
shared her bed, and, though only a child, acquired great skill in
attaining his ends without attracting her attention, lifting her
night-gown when she slept and gently caressing the buttocks, also
contriving to turn her over on to her stomach and then make a
pillow of her hips. This went on until the age of 7, when he
began to play with two little girls of the neighborhood, the
eldest of whom was 10; he liked to take the part of the father
and whip them. The older girl was big for her age, and he would
separate her drawers and smack her with much voluptuous emotion;
so that he frequently sought opportunities to repeat the
experience, to which the girl willingly lent herself, and they
were constantly together in dark corners, the girl herself
opening her drawers to enable him to caress her thighs and
buttocks with his hand until he became conscious of an erection.
Sometimes he would gently use a whip. On one occasion she asked
him if he would not now like to see her in front, but he
declined.

One day, when 8 or 9 years old, being with a boy companion, he
came upon a picture of a monk being flagellated, and thereupon
persuaded his companion to let himself be whipped; the boy
enjoyed the experience, which was therefore often repeated. Jules
P. himself, however, never took the slightest pleasure in playing
the passive part. These practices were continued even after the
friend became a conscript, when, however, they became very rare.
Only once or twice has he ever done anything of this kind to
girls who were strangers to him. Nor has he ever masturbated or
had any desire for sexual intercourse. He contents himself with
the pleasure of being occasionally able to witness scenes of
whipping in public places--parks and gardens--or of catching
glimpses of the thighs and buttocks of young girls or, if
possible, women.

His principal enjoyment is in imagination. From the first he has
loved to invent st