Hi again,
perhaps you could tie up your slave in the woods, spreadeagled. And then do nothing, just wait until the bugs, ants and other insects will start their work. (Maybe you could speed this up by placing her near an anthill and / or using honey or something else...)
I look for something like this for years, but never found anything like this.
Since you did already some great shoots outdoors maybe that's something you could trie?
Best regards and thanks again!