ever noticed during or near cllmax the anal muscles go psycho?
I have found with my wife if I were to ever think of any oral contact or penetration with anything would result in a dressing down... and I don't disagree, it can be a foul and smelly orifice, however (when showered) all I need to do is touch her anus, or at the most apply pressure (without penetrating) it bring her to almost an almost immediate and powerful cllmax. I believe it is some kind of reaction from the already pulsing muscles in the region.