i think what you need to know depends on the fetish involved. for example, a site packed with cute guys wearing socks can do great, and your text doesn't have to be all that involved. ditto guys in speedos, although to be fair, showing a hard bulge in a speedo can be considered lascivious exhibition of genitals.

i have a friend who made a site packed with sexy chicks with long fingernails, and i hear that does great.