Hey, it's the first time I get quoted in this community ... nice feeling. Thanks Master13 , I think you deserve a price.
But I want to underline that besides my preferences and my suggestion to keep male and female submission separated, yet I can appreciate a good looking, severe mistress, torturing a good looking male slave, if both are suitable for their respective role.
I also read with interest the description of the TENs torture described above by Korg and kittenfemme.
Of course one great difference between male and female submission is that female slaves are regularly "used" sexually, while male slaves rarely are used by their mistresses (at least in the regular way). Nevertheless also with female slaves, some masters/mistresses prefer them not to enjoy too much their sexual use and therefore add some ordeal. I love my slave to suffer somehow while she sucks me or another dom to orgasm.
Here is a pic of her giving head while receiving TENS treatment .
As you can see (unfortunately not clearly as it would deserve), she was wired between clit and asshole.