Standard chastity devices have not been able to keep this slave from thinking with his cock, so I decide to do him a little favor and STAPLE HIS COCK SHUT by the foreskin, so he won't be able to get an erection without painfully tearing them out.
But first, I need to make sure he's nice and quiet for the procedure by STAPLING HIS MOUTH SHUT with the same medical staples I'm about to render his cock useless with.