"In a biological sense, the very essence of the human creature is defined by sexual reproduction. Perversion of that makes you much less so in the scheme of natural selection and/or evolution, doesn't it?"
Even as an atheist, you must agree that according to what you wrote above, there are millions of heterosexuals who are practicing "perversion". Heterosexual sodomy and oral sex are certainly not procreative.
I certainly DO agree. Anatomical function is axiomatic.
“Who is he that is not of woman borne?” - Macbeth
They're foreplay. Cunnilingus and fellatio are the semifinals. The game before the big game.
And, in the pink corner, wearing neon pink trunks, representing the pinkos, Calreagan.