The René Guyon Society was a possibly mythical American group that is said to have advocated sexual relationships with children. It was named after René Guyon, a former judge who served on the Supreme Court of Thailand for 30 years and who, apart from traditional judicial work, wrote on sexual ethics in his work The Ethics of Sexual Acts.
The entity's motto is said to have been "sex before eight, or else it's too late," According to some sources it was based in Beverly Hills, California.
The René Guyon Society has been identified (along with the North American Man/Boy Love Association) as an organization "challenging the assertion that sexual abuse is bad because of its effects on children."
References
René Guyon Society Wikipedia(Text) CC BY-SA