Profitable traffic comes from
BDSM for All
http://www.bdsmclicks.com/list.html
which is ranked #1 by Sextracker, you can check the stats here:
http://ranks.sextracker.com/spn.html?cat=BDSM&cls=ranks
Paid galleries listings pricing for 1 month, 30 galleries with short 3 words
or less descriptions:
Bondage, Torture, Maledom, Femdom categories
$75 2nd spot
$40 4th spot
Spanking, Latex, BDSM Video categories
$60 2nd spot
$35 4th spot
Other categories
$50 2nd spot
$30 4th spot