Overuse of porn can easily desensitise the individual... you have to be careful.
If you keep looking at full suspension downhillers, then after a while you'll no longer fancy "normal" MTBs with just a suspension fork. One day, even full suspension won't float your boat and you'll start going further to get your kicks, with the porn getting ever more left field. Before you know it you'll be looking at penny farthings, clown bikes, unicycles, and other such kinky niches.