"You're probably the only person here who'd say such kind words to me. You don't seem nuts like everybody else here although you intimidate the guards more than I do."
He didn't scream rather he reveled in the pain enjoying what she was doing to him and surrendering to what he could only describe as euphoria although having his skull reconfigured was a new one he liked it and when she finished he was breathing heavily with a sated grin - it'd felt beyond good. Between breaths he said "That...was amazing! You're...the most amazing...woman in the world!" Looking at the collar he tossed it in his casket and sat on the lid smiling a real smile.
"I can see us getting along nicely. And you're welcome to use your powers on me anytime you like."