I have done it a dozen times over the years but set it up ahead of time so they prep. Bare back ass every time and never came out with any mud because the providers understand how to prepare. I would not do it unless things were agreed upon in advance. I find it equally pleasing to both of us. Best part is creampie her ass and watch them push it out. I have eaten my load out of their ass a few times and then snowballed it. So hot! Ya got to try everything! That is what life is all about!