Isaac let his arms get pinned down to his sides, taking away any last shred of control he felt over the situation. It was exactly what he needed, to be completely in Derek's hands, letting his Master decide what pleasure he would be given or denied.
All he could do was whimper; whimper at the tight grip in his hair, the words of praise (or at least that's how he heard them), and especially at the slight taste of Derek, that he greedily licked from his lips.
"Please Sir," he begged desperately, staying perfectly still and hoping Derek would feed him his cock. He parted his lips slightly, putting himself on display.