The topic for today is one that I personally have never really had given much in the way of thought to until today. It is how Demeter stands in terms of sexuality and gender, both historically and in modern UPG.
As she is a goddess associated with fertility in plants and animals, it is my opinion that she would have no issues with any healthy form of sexuality or gender. This opinion is based on the fact that fertility of body in humans is not always healthy without fertility of spirit as well.