I think it's funny that you keep referring to your "competitor", like there's only one. As pocketrocket just pointed out you probably have 10s of thousands of competitors, or even 100s of thousands (and certainly millions of sites). If it's not in blog format, it's a forum, ezine or a thumbnail gallery.
Whatever the format, we're talking about one of the most competitive and over saturated niches in the world.
I hate to piss on your parade man, but you've got a tough road ahead of you.
I would also be wary of these free adult WP templates. Make sure you scour them well for hidden backlinks to their creator's (your competitors) sites. Usually it's just a pixel on the page somewhere.
edit: Jeremy makes a good point too. You better be careful posting pics of chicks you don't know. If they are underage you can get done by the Feds and I'm pretty sure you don't want that. Not to mention face legal action from the girls themselves for posting their pics without their permission. You might also face copyright infringement. There are some pretty serious laws behind this stuff. Producers must keep on file accurate records of their models.
Wickedfire is the shit, but you might also want to check out a dedicated adult forum like GFY for more info.