think he wants to grab
I think he certainly wants to grab something. Unfortunately for him, from his point of view, all he'll get are gerontophiles unless he pays hard cash.
His days doing it and pretending not to be "bi-curious" are far in the past.
I wouldn't exclude anything
Nor would I, however in his case, I've never seen a clearer case of suppressed desire externalising itself as obsession. He gets off on writing the words even.
Totally transparent.