Have you ever thought about how many sexual undertones there are in what you see and hear? In usual, everyday things, words, symbols, objects? In order to provide you with a basis for such thoughts, I'll let you try a piece of this sexuality pie with art, literature, music, and mythology flavor.
Poets and bans
Sexual symbols and undertones, that leak from the world of fantasy into the reality around us, are not always archaic and may not have ancient cults as the only source. One of the reasons that sexual metaphors began to appear were bans on explicit references to sex. In the Victorian era poets created a metaphorical language to describe sex, using more acceptable actions and objects in place of direct sexual references. They were able to satiate normal phrases in poetry with sexual meaning. You can read them without noticing sex, if your sexual imagination is off. Shakespeare invented his own sexual symbols: a vagina, for instance, is 'blackness' in "Othello":
“If she be black, and there to have a wit,
She'll find a white that shall her blackness fit.”
and 'the boat' in "King Lear":
“Her boat hath a leak,
And she must not speak
Why she dares not come over to thee.”
Other authors used more simple and intuitively similar objects and analogies, "Alluring holes, beautiful boxes, and valuable treasure chests appear with clearly suggestive implications throughout the classic women's novels of the mid-nineteenth century as well" ("Vagina," by Naomi Wolf). The descriptive role of the female body in literature was also played by plains and landscapes, rolling hills and hollows. A poet Remy de Gourmont in his book "Natural philosophy of love" lyrically describes life itself as a process of constant fertilization, but, perhaps, the most noticeable metaphor can be found in the introduction to the book made by an American poet and critic Ezra Pound. He suggests you feel this metaphor by just coming up with a new idea.
Blues the seducer
The beginning of the 19th century gave birth to blues and ragtime lyrics, which, under curious, persistent, and full of sexual imagination analysis, turn out to be shameless talking about sex:
“Tonight was made for me and you
You can ring my bell, ring my bell”
“Ring my bell,” by Anita Ward".
If you still don't understand what this song is about, then here's a hint: a bell is the clitoris. Now, when you hear these words next time, your sexual imagination should be grateful for the new knowledge. Sexy songs of the blues era taught us to talk about sex and seduce with the help of clear and bold metaphors
However, sexual metaphors were also used when there were no bans on talking about sex. Metaphors were used for coloring sex and sexuality with divine qualities and the qualities of the most valuable items and materials like the sun, jade, paradise, for instance, "precious pearl", "gates of heaven", "golden lotus" (the love poetry of the Chinese Han and Ming dynasties); "Gates of heaven", "secret places", "jade gate" ("Art of the bedchamber.") Such metaphors added to sex and sexuality the taste of something divine, sacred, something which should be treated with care and admiration. I hope that I have tempted you to try and feel the taste of sex in ordinary things, and to feel the taste of the divine, including your sexual imagination, in sex itself!
Find more for your sex imagination in articles "Threesome Sex Ideas: Stories, Statistics, Terminology" and "Imagination – Switch".