The US-based Hybrid Children Community, is trying to recruit more parent breeders, in a bid top "evolve" the human race into a new sub-species which will take over the Earth when the children currently conveniently housed on giant space ships "return to our planet".

Women in the group, who include young glamorous 20-somethings, even claim mating with reptile-like lizards was the best sex they have ever experienced.

These include Bridget Nielsen, 27, from Sedona, Arizona, who is a hybrid mum and medium who charges $65 (£46) for an over the phone session to put parents, who believe they may have conceived hybrid children, in touch with they offspring, according to the community's website.

Describing sex with a lizard being on a spaceship, she said: "It was great. It was an incredible super primal, super raw, super primal sexual experience.

"There was a really freedom and we were really going for it. It was the best sex I ever had."

Another young hybrid mum is Aluna Verse, from Los Angeles, California.