I secured My slave in a leather sling, his ass wide open, his previously balls (with the CBT marks still visible, especially on the cock) stretched. On his head I put a gas mask making breathing harder for him. I am going to make him My bitch and fuck him with My favorite dick: the big black strap-on dildo. I take it easy at the beginning, so that he can feel every inch of My dick going into his ass, and then I thrust quickly and powerfully, enjoying fucking him without caring; he is just a fuck-hole for Me. And the strap is so tight, that I can feel every thrust like it's My own cock.