Zach's face didn't change at Anthony's statement, though he didn't doubt it. He had no interest in fucking Anthony, so there was no threat to him. And really, it was an annoying twat - not someone he even had to bother thinking about the rules for.
But he didn't want rumors. That said, T was in charge, and so Anthony was probably talking to him...
"Of course," Z replied to Terrence, recognizing Anthony only in regards to his choosing to be present. Thankfully, for ease's sake, Anthony actually followed the instructions. Zach was not sure if the boy were brave, proud, or just bloody stupid. Zach knew Terrence well, and while he hoped never to be in Anthony's situation (cuffs for torture of the non-pleasurable variety), he'd not go down willingly if possible. He barely touched the servant while cuffing him, just enough to make certain it was secure.
Zach had researched cuffs well before buying those. Anthony wasn't getting out...