The other person may do the same during or after. A study of 164 males in Finland from two SM clubs found that 18.2% had engaged in coprophilia; 3% as a sadist, 6.1% as a masochist, and 9.1% as both. 18% of heterosexuals and 17% of homosexuals in the study pool had tried coprophilia, showing no statistically significant difference between heterosexuals and homosexuals. Additionally, the buttocks give an indication of the shape and size of the pelvis, which impacts reproductive capability. Clothed male, naked female is one-sided female nudity in which one or more females are nude while one or more men are clothed. Rainbow party A rainbow party is an urban legend spread from the early 2000s. Tentacle erotica can be consensual, but frequently contains elements of non-consensual sex. The name was coined from the title of the controversial book. Some people hot gay sex get sexual pleasure by inserting objects, such as urethral sounds, into the urethra , a practice known as urethral play or sounding. The term pearl necklace is used by some because the drops of semen deposited momporn by the man resemble a necklace of translucent white pearls. The naked appearance of actress Demi Moore in the advanced stage of pregnancy on the cover of Vanity Fair magazine in 1991 marked the beginning of a period which has since seen pregnancy presented by celebrities as a glamorous state of living, while also creating a market for photographers to produce images of pregnant mothers, and for fashion stylists to introduce pregnancy styling to their business. In 1988, a sex tape caused significant damage to Rob Lowe career. Threesome can also refer to a love triangle, a three-way romantic relationship. Such ejaculation can be done by mammary intercourse, or masturbation over the other person, anime hentai or result from the withdrawal of the penis from a partner mouth as he is ejaculating following fellatio, irrumatio, or intercourse. Hardcore pornography is pornography that depicts penetration or extreme fetish acts, or both.