Use all images no plaintext. Put your text in images. This way you won't have useless words indexed as part of the page.
Quote:
CONTENT IS ONLY AVAILABLE FOR ADULTS AND PREMIUM MEMBERS!
CONTENT ON ">VINTAGEPORNBAY & ">TUBE
ONLY AVAILABLE FOR ADULTS (18+ or 21+) and <a href="http://www.vintagepornbay.com/premium-membership/#platinum-jump
">PREMIUM MEMBERS:
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^^^ this will be part of what is indexed