Step-Daddy insists that I train my ass to eventually take his cock, but it's so tight. I have to start off with different size butt plugs to train for that day. This is the first step and even though it's a small plug, it was hard to get it in. It's going to take several more sizes to train for Step-Daddy though.

Of course, after inserting it, I got all aroused thinking about Step-Daddy's cock in my ass, so I had to masturbate after putting on my diaper. With more practice I am going to be able to take his big thick cock.