The G-spot was named in honour of the gynaecologist Ernst Graefenberg M.D. after he wrote a paper about it in 1950. It’s been causing confusion ever since.
Male pigeons were getting all ruffed up, pirouetting like whirling dervishes, in the hope of taking the fancy of their target lady pigeon. Then my attention landed on the humans directly in front of me, and from my vantage point atop a council-provided public rowing machine, I observed courtship behaviours that were not dissimilar.
Hypothalamus’s PVN (red) prepares the body for sex by sending a torrent of electrical messages along neurons within the spinal cord which ultimately releases a cocktail of neurotransmitters into the genitals. In both men and women this leads to vasocongestion whereby the genitals become engorged with blood – leading to an erection in men and lubrication, increase in vaginal depth and diameter in women.
Behaviours associated with lust, love and long-term bonding developed through evolution of separate but overlapping brain systems. Lust encourages coitus on a relatively indiscriminate basis: ensuring that genes are passed on to the next generation. Love involves a sexual preference for an individual considered in some way superior to the competition. And long-term bonding encourages fulfilment of parenting duties.