With adult sites development, just answer a few questions to yourself.
Are you going to charge members directly for your content? If so, you need both billing and content. There are adult webmaster solutions available for both parts. Content is the key. Common picture sets are not working well now, adult surfers are looking for leave cameras, live shows etc
You may also consider affiliate site. Something like a free site or TGP with links to your sponsor. Content is important, too. Some webmasters start with so-called "public domain" content (collected all over the net), but it is a source for possible legal problems. Try to choose affiliate program which pays % for the life of member. 50-60% is OK.
A few more moments:
Never use freehosts. This is not stable and they may steal your visitors and would get a large % of their clicks to banners.
Try to find a "niche", something special. Common "teen girls" are available everywhere, but what about "fat asian shemales" or something unusual? Those who need it - they would pay YOU only.
Never use images of ppl. before 18 y.o. or looking too young.
Never pay for "unlimited traffic" as your site would be slow.
Find payhosting charging ~$1 per gig, Traffic is very large issue at adult sites, but it is possible to find quality hosting with modest prices like $1 or even less per gigabyte.
Good luck!
