My
the layout and design looks too 1999 or so. It reaks of pay site from page one.
Surfers are getting smarter, have been for some time really. So when they see a "standard" layout, as someone else already metioned, when they are surfing for free porn the back button gets hit fast.
It's maybe better to hit the front end with a free site feel that only gives teasers. The hit them with the membership look when they want more than a few quick shots to get thier rocks off.
I see your site and it screams pay to play from page one. That equals back button and back to the next listing hoping for enough free juice to tug one off.
Tempt them without screaming, "Hey give me money!" long enough to get them horny or atleast past the first page or so.
Get them clicking around a bit more and you increase your odds for a sale.