We are branching out into something I have wanted to do for a long time - using a TENS unit during our play. I've seen them used in videos but they seem to be a bit larger and more heavy duty units - the one I have is a 9V, 4 electrode unit. What I want to know is best placement - she is completely open for any stimulation be it clitoral, labial, anal, etc. I want to use it as a way to build her up and put her at the edge without pushing her over. Also, she gets extremely wet, soaking her inner thighs, mons, everything in the most delicious of ways which is good for conductivity but not necessarily for keeping the electrodes attached. Tips? Thoughts? Suggestions?