How will you have the "Gay" talk with your children?

Hypothetically, your young six year old son/daughter has already had the traditional "birds and the bees" discussion where "When a man loves a woman they begin battling each other with their genitals until an infant appears." Let's also assume that the discussion comes about whenever young Billy has discovered Spider-Man and Galactus engaging in physics defying anal coitus in his latest comic magazine or young Susie is curious as to why her guy friend Liam wears a dress to school.

How would you open it up?

"Sometimes a man and a man or a woman and a woman like to engage in sexual relations for no procreation purposes whatsoever."

Or if you have a son,

"Imagine a man thrusting his penis into your butthole, repeatedly? A homosexual man enjoys this regularly."

Also, how would you explain to your children that some people have a sexual affinity to cartoon ponies rather than or in addition to real humans. Or some people like to pretend that they are anthropomorphic animals with large elaborate costumes and are largely attractive to their cartoon anthropomorphic counterparts?

What about relationships between two consenting partners which involves one partner assuming the role of a small baby and the other partner assuming the role of the father(who apparently has sexual relationships with his partner while role-playing this father/son dynamic).