In contrast, 93.99% of her sample reported having done spanking or having had it done to them, and  61.96% reported having used or been exposed to feathers/fur. It is impossible to extrapolate Rehors data onto the general population, but her study does give a guide to prevalence in the North American BDSM community. In Channel 4s 2017 nationwide Great British Sex survey, watersports (or urolagnia) was ranked ninth in popularity among sexual fetishes in the UK. Notable cases
Chuck Berry: American musician who was featured urinating on a woman in a sex tape, and was sued for videotaping dozens of women in the restroom of a restaurant he owned. Havelock Ellis: British sexologist who was impotent until at age sixty he discovered that he was aroused by the sight of a woman urinating. Albert Fish: an American serial killer, also known as The Grayman, The Boogeyman. He wrote several letters to widows with want-ads in The New York Times and described in detail women urinating on him, inside of him, and in cups so that he could drink it. He later forced children to drink urine. Ashley MacIsaac: Nova Scotian fiddler and singer. In 1996 he spoke with a Macleans interviewer mentioning his sexual life, including his boyfriend and his taste for urolagnia. In 2003 he told an interviewer for the Montreal Mirror that he loves to have men urinate on him. Ricky Martin: a Puerto Rican singer. He gave an interview with Blender magazine in which he stated that he enjoyed "giving the golden shower".
At month five, the vaginal canalization is complete and the fetal hymen is formed from the proliferation of the sinovaginal bulbs (where Müllerian ducts meet the urogenital sinus), and normally becomes perforate before or shortly after birth.The hymen has dense innervation. In newborn babies, still under the influence of the mothers hormones, the hymen is thick, pale pink, and redundant (folds in on itself and may protrude). For the first two to four years of life, the infant produces hormones that continue this effect. Their hymenal opening tends to be annular (circumferential). Post neonatal stage, the diameter of the hymenal opening (measured within the hymenal ring) widens by approximately 1 mm for each year of age. During puberty, estrogen causes the hymen to become very elastic and fimbriated. The hymen can stretch or tear as a result of various behaviors, by the use of tampons or menstrual cups, pelvic examinations with a speculum, sexual intercourse, insertion of multiple fingers or items into the vagina, and activities such as gymnastics (doing the splits), horseback riding or trauma caused by a "straddle injury". Remnants of the hymen are called carunculae myrtiformes.A glass or plastic rod of 6 mm diameter having a globe on one end with varying diameter from 10 to 25 mm, called a Glaister Keen rod, is used for close examination of the hymen or the degree of its rupture.