The terms Big Beautiful Women and BBW were coined by Carole Shaw in 1979, when she launched BBW Magazine, a fashion and lifestyle magazine for plus-size women Fat fetishism is the strong or exclusive sexual attraction to overweight or obese people. Following World War II, during a period of social repression when governments actively persecuted homosexuals, women developed networks to socialize with and educate each other. Medical pornography involves sexualized medical, often fake, including gynecological pelvic examinations, rectal examinations, and pelvic or gynecological ultrasounds. Group sex pornography features at least two men and two women , usually more, who all perform sex acts on each other. It may occur more frequently in private situations, such as spontaneous sexual activity among three friends, or arranged in a community of like-minded swingers or planned as a once-only experience; and rarely in anonymous settings, such as at orgies or other sex parties. The consensual submission of the submissive is sometimes demonstrated to others by symbols indicating his/her belonging to the dominant, such gay twinks as wearing a collar, special tattoos, piercings, a very short haircut or a bald head. Internationally, momsex hentai is a catch-all term to describe a genre of anime and manga lesbian hentai pornography. A lesbian is a female homosexual; a female who experiences romantic love or sexual attraction to other females. In the West, masturbation in private or with a partner is generally considered a normal and healthy part of sexual enjoyment. Diaper fetishism is totally independent from pedophilia as the wearer derives pleasure only from the diaper and/or use of it. They signal the presence of estrogen and the presence of sufficient fat stores for pregnancy and lactation. Works in this genre may explore philosophical, political or social issues. In humans, females generally have more round and voluptuous buttocks, caused by estrogen that encourages the body to store fat in the buttocks, hips, and thighs.