You can't really say that he's missing out due to his cage as he would slip out in the position anyway all the time. The cage is the simple and easy solution for him. He does not need to be ashamed of being a bad fuck anymore.
I took this picture before i fucked my sissy husband with my thick 9” cock. I said she won’t get unlocked until she learns to cum from getting fucked. What i didn’t mention is that if that happens, she wont ever need to be unlocked again 😈