Everything you know about sex is true.

When Prince Charming falls in love with a man

Homosexual kings, lesbian mothers and gay penguins are the protagonists of a new type of schoolbook for British children.

Once upon a time a prince was looking for a suitable queen to be. He was introduced to one princess, two princesses ... and fell in love with another prince. They married each other in a dream wedding and lived together happily ever after. Sounds like an underground gay comic? It isn't -- the text in question is a schoolbook.

A state-supported pilot scheme run at 14 elementary schools -- attended by children from the age of four to 11 -- is frown upon by conservative parents and religious groups who fear that such stories could morally corrupt the children and promote homosexuality.

But, say the people behind the "No Outsiders" project, the books are about as morally corrupting as Cinderella -- love, not sex is at the heart of the matter. While children don't have a problem with this, their parents do, says Mark Jennett who is responsible for training the teachers. "The problem comes not from the kids but from the nervousness of the adults."

Apart from "King & King", there will be other books addressing same-sex parenthood. "And Tango Makes Three" features a baby penguin with two fathers while "Spacegirl Pukes" is a picture book about two mothers who send their daughter on a space trip. The texts are listed on the recommended reading list for the schoolchildren.

"The most important thing these books do is reflect the reality for young children", project director Elizabeth Atkinson explained, adding that conventional children books which don't include homosexual relationships "silence a social message" which could lead to children being bullied later on in school if they are gay or perceived as such.