Research, research, research. Just because this is porn doesn't mean you don't have to do your homework. If a girl is not showing you her bush or her nips, guess what. That is her style. Porn girls normally stick to a certain style/niche and if you did your homework you would know the type of girl she is.
About not paying for porn, I won't even go there. Well OK I will, next time you go into work and your boss says, thanks for coming in today, but I'm not going to pay you, see how that works out and report back.
Remember people just like anything you do in life, what you put into it is exactly what you get out. There are many review sites, a couple that come to mind like 'The Best Porn' that are in the business of reviewing pay sites to keep people happy that spend money to keep our industry going.
Want to know if a trial membership will give you FULL access? Want to know if you have to pay more to see the videos?
Back to my original point, RESEARCH. Spend a little time researching what you want to spend your money on and I promise you will enjoy the experience a whole lot more!