Yes i have, i love that feeling of being watched, so erotic
Its not the prick that does the trick its the throb of the knob that does the job.
personally size is unimportant but i am petite so anything large can feel a little uncomfortable.
I have used my "charms" to get something which is more or less the same thing I suppose. I would if the offer was right for the situation i was in at the time, who are we to judge.
I do it more if someone is with me watching
I am not a fan, love it over my upper inner thighs, boobs yes, mouth yes