Analysis of information sources in references of the Wikipedia article "Doigtage" in French language version.
« Women rated clitoral stimulation as at least somewhat more important than vaginal stimulation in achieving orgasm; only about 20% indicated that they did not require additional clitoral stimulation during intercourse. »
« Most women report the inability to achieve orgasm with vaginal intercourse and require direct clitoral stimulation… About 20% have coital climaxes… »
« Women rated clitoral stimulation as at least somewhat more important than vaginal stimulation in achieving orgasm; only about 20% indicated that they did not require additional clitoral stimulation during intercourse. »
« Most women report the inability to achieve orgasm with vaginal intercourse and require direct clitoral stimulation… About 20% have coital climaxes… »