Although I am loose, it takes the right size hand to get in my ass. They don't have to be tiny just not massive paws.
I used to go to this wooded area near, which was a big cruising spot. Plenty of trees on their side to bend over, plenty of clearings with cover to get naked and play around.
One day I was in my jock ass up bent over a tree, felt the normal slap on my ass and heard voice ask my if I can take a hand, I said don't know but you can try. He started with a few fingers then worked up to all plus thumb, next I felt his hand pop past my lips and next he was wrist deep. He worked my ass slow and fast, pulling almost out and pushing back in deep. I felt him put his dick in me and jerk himself off. A few minutes later I felt him do it again, I turned around to look and that's when I noticed about 5 guys there watching looking like they wanted to try but did not. He worked my ass for about 5 more minutes then just left, the others did not fist me but did take turns fucking me. I'm hooked now, so my answer is don't know but you can try!