I thnk Kevin is legitimately just that much of a coomer. It's an addiction, it doesn't matter if the organs and hormones are all wrong for him to have any kind of actual orgasm or sex drive, he is (and was, even before transition) so porn and coom addicted, that those cooming-neural-pathways are etched deep into his cerebral cortex. It's psychological, and the mind is a powerful thing. A diseased mind hyperfixated on something won't easily let it go, even if the actual stimulus that caused that mental state is long since gone. I wouldnt be surprised if he *does* seem to "feel" some kind of sexual pleasure due to this obsession. A hallucination of an orgasm if you will, though he is obviously incapable of the real thing, so any pleasure chemicals his coom addicted brain leaks out on occasion are just hollow feelings.