Reference may be made at this point to the influence of tight-lacing.  This has been recognized by gynaecologists as a factor of sexual excitement and a method of masturbation.[211] Women who have never worn corsets sometimes find that, on first putting them on, sexual feeling is so intensified that it is necessary to abandon their use.[212] The reason of this (as Siebert points out in his Buch fuer Eltern) seems to be that the corset both favors pelvic congestion and at the same time exerts a pressure on the abdominal muscles which brings them into the state produced during coitus.  It is doubtless for the same reason that, as some women have found, more distension of the bladder is possible without corsets than with them.

In a further class of cases no external object whatever is used to procure the sexual orgasm, but the more or less voluntary pressure of the thighs alone is brought to bear upon the sexual regions.  It is done either when sitting or standing, the thighs being placed together and firmly crossed, and the pelvis rocked so that the sexual organs are pressed against the inner and posterior parts of the thighs.[213] This is sometimes done by men, and is fairly common among women, especially, according to Martineau,[214] among those who sit much, such as dressmakers and milliners, those who use the sewing-machine, and those who ride.  Vedeler remarks that in his experience in Scandinavia, thigh-friction is the commonest form of masturbation in women.  The practice is widespread, and a medical correspondent in India tells me of a Brahmin widow who confessed to this form of masturbation.  I am told that in London Board Schools, at the present time, thigh-rubbing is not infrequent among the girl scholars; the proportion mentioned in one school was about ten per cent, of the girls over eleven; the thigh-rubbing is done more or less openly and is interpreted by the uninitiated as due merely to a desire to relieve the bladder.  It is found in female infants.  Thus, Townsend records the case of an infant, 8 months old, who would cross her right thigh over the left, close her eyes and clench her fists; after a minute or two there would be complete relaxation, with sweating and redness of face; this would occur about once a week or oftener; the child was quite healthy, with no abnormal condition of the genital organs.[215] The frequency of thigh-friction among women as a form of masturbation is due to the fact that it is usually acquired innocently and it involves no indecorum.  Thus Soutzo reports the case of a girl of 12 who at school, when having to wait her turn at the water-closet, for fear of wetting herself would put her clothes between her legs and press her thighs together, moving them backwards and forwards in the effort to control the bladder; she discovered that a pleasurable sensation was thus produced and acquired the habit of practicing the manoeuvre for its own sake; at the age of 17 she began to vary it in different ways; thus she would