If so how the hell do you get past your knuckles? I've been trying to fist my wifes ass for a while now and can't get all the way in. Talk about frustrating!
lots of lube and lots of time lol it is possible but more than likely she will feel some pain and the discomfort of actually having the whole hand in there will probably suprise her! why not let her first your ass first as practise seeing as she will have smaller hands :whistling