to each other, the _third_ act begins, namely, _the motion of the
organs_--the sliding of the penis back and forth, partly in and out of
the vagina, though this is not really the best way of describing just
what should take place. What _should_ actually be done is, that the
_two_ organs should engage in this motion, which is _common to them
both_. They should _mutually_ slip a few inches, back and forth, _each
party to the motion doing a fair half_.

It is often supposed, by both an uninitiated husband and an "innocent"
wife, that all the motion should originate with the husband--that
he should slide his penis in and out of the vagina, while the woman
should lie still and "_let him do it all_." This is, however, a
_great_ mistake, and one that has caused an endless amount of ill to
untold numbers of husbands and wives. And for the following reasons:

In the position just described, if the wife has her arms around her
lover's body and her heels in his knee-pockets, while he supports
himself by his elbows and knees over and above her, resting _none_ of
his weight upon her, it is perfectly easy for her to lift her hips up
and down, or sway them from side to side, or swing them in a circling
"round-and-round" motion, as she may choose to do. She can thus
_originate_ her half of the in-and-out motion--a something she will
delight to do, _if given a fair chance._ If, however, the man lies
heavily upon her, holding her down with the weight of his body, the
possibility of such action on her part is prevented, and this results
disastrously to both parties. And so, in this part of the act, the
husband should take the _utmost care_ to give his wife the _full and
complete freedom_ to move her hips as she chooses, and as a successful
climax demands that she should.