The following photo has been taken from http://yourbootblack.tumblr.com/. That tumblr is simply perfect in my eyes. The images collected and shared are directly in my wheel house.
One recently posted is actually .gif. Not sure if I know how to post a .gif, so if clicking on the photo does not open it in a new window in which the picture is moving, then head over to http://yourbootblack.tumblr.com/tagged/tease and scroll down till you find it.
Just seeing this got me thinking. I feel like if you show this to someone who's never engaged in chastity, female domination or bdsm etc., their initial reaction would go a long way to immediately determining whether they will ever be interested in that lifestyle. Much of our sexual turn-on's are not controllable. You see an image; you read a story; you have a stimulating discussion; you engage in some sexual activity - your reaction is not necessarily controllable. You see or do it and it turns you on. Or not.
I assume a woman, seeing this gif, would have the reaction of "ohhhhh, that looks delicious" or "ewe, gross." Of course, there are always shades of grey, but I still think that the actual photo - being tied up, the use of chastity device, and the gentle swinging of the key with the him following the gentle swing of the key - the is either something attractive or disturbing to the viewer.