Tip for finding good youtube keywords

i know there is a y0utube keywords tool thats like the adwords KW tool but it doesn't let people search for adult themed keywords so here is the tip to find some top searched xxx words just type in Y0utube search some basic sexy words.
Then go through the sexy videos that come up on the YT search results and have many views.
Look at those videos Statistic & Data section and look for the " referral from YouTube search" and find all the most typed in keywords people used to find those vids.
Use those keywords for your own videos in the Title,desctiption,tags etc,,,
this way your video can get more views and whoever watches the top videos would see your video in the 'related videos' too.