Now that I've got him in his skin with some sensation and impact play, time to strap him down tightly to my spanking bench and begin the anal expansion program! I had planned an inflatable butt plug for him, but his smaller cock was twice the size of that! ???? So after a bit of probing, his ass just sucked in my fingers... OK, Mistress gives every slave a decent warm up, but this extreme slave was more than ready!