I'm preparing my submissive's ass for the pegg by fisting him

Today I came home from a friend's house where we had fun with her strap-on dildo. It was amazing! I had a great time, which is impossible with my submissive's small penis. I'm going to show him what a real strap-on is like, but first I'm going to fist my submissive's little ass to prepare him for pegging.