"I think you sincerely underestimate my genuine lack of care as to how much shame matters to me," is his thrilled retort, sprawling until he's spread like a star, waiting expectantly. "I like a man in control, though."
Other options:
no subject
"I think you sincerely underestimate my genuine lack of care as to how much shame matters to me," is his thrilled retort, sprawling until he's spread like a star, waiting expectantly. "I like a man in control, though."