18 JUL 2013 by ideonexus
The Connection Between Art and Sex
How the pleasure in some stately piece of beautifully pro- portioned architecture, the thrill produced by solemn music, or the calm sweetness of a summer landscape in the evening, is to be attributed to the feeling of sex only, it is hard to see; they have in common a pleasurable emotion, and that is all. That a very large part of art is directly inspired by erotic motives is perfectly true, and that various forms of art play an important part in love songs and courtship is obvious; but this ...Both instill pleasurable emotions, but is one a strategy to get the other or are they naturally connected via the similar emotions they generate?
26 JUN 2013 by ideonexus
Sexual Selection in Penises and Clitori
In species that do not use copulatory thrusting, especially insects, penises evolve more obvious tactile stimulators: nubs, spikes, ridges, curls, barbs, hooks, and flagella. Male insects often try to push each other off during copulation, so copulatory thrusting would risk disengagement. Better to lock the genitals together and have internal flagella to excite the female. With primates, it is not so common for male rivals to swarm over females knocking each other off. This allows couples a ...Female sexual preferences may have guided the evolution of these sexual organs.
03 MAY 2011 by ideonexus
Orgasms and Sperm Retention
t. Baker and Bellis discovered that the amount of sperm that is retained in a woman's vagina after sex varies according to whether she had an orgasm and when. It also depends on how long it was since she last had sex: The longer the period, the more sperm stays in, unless she has what the scientists call "a noncopulatory orgasm" in between. So far none of this contained great surprises; these facts were unknown before Baker and Bellis did their work (which consisted of samples collected by ...Women retain more sperm when they have an orgasm, but they are also more likely to be unfaithful when most fertile.