ever heard of doggie style?

'However, there are some humans who claim from personal experience that sexual relations with aliens are possible. Elizabeth Klarer was a wife and mother living in the hills of Natal, South Africa, where she had seen UFOs on several occasions. Eventually, in 1956, she met one of their occupants. Akon, a scientist from Meton, a planet in the Alpha Centauri constellation, was seeking an Earthwoman as a mate for experimental purposes. "We rarely mate with Earth women," he explained. "When we do, we keep the offspring to strengthen our race and infuse new blood". What began as a clinical experiment turned into a meaningful relationship:

"I surrendered in ecstasy to the magic of his love making, our bodies merging in magnetic union as the divine essence of our spirits became one... and i found the true meaning of love in mating with a man from another planet."

She also found motherhood, for she became pregnant and was taken by Akon (together with her beloved MG car) to Meton, to bear her child there. She spent four idyllic months on Meton, where there was no pollution (except that caused by her car, presumably), everyone was vegetarian, and there were horses for her to ride once she had recovered from childbirth. Unfortunately, however, because Meton had a different vibratory rate to that of Earth, she could not live there permanently.'

~Evans, H. (2001) Unexplained, The: Coming from the skies. Carlton Books Limited: Dubai, p25.