Part of being a Spirit of Chaos means having a very whimsical approach to sex. It'sin Discord's nature to want to try new things. This time Discord asks his mate, Fluttershy to indulge in something tame by his standards yet unusual to her.
"Any religion that allows or commands you to pass judgement on, convert by force, or kill another human being is not a religion that serves any interpretation of any God or Gods above." Unknown