In which the Frank Miller-ish evil Bruce Wayne is secretly a Dom in life and a Sub in bed.
Probably something like this.
"Who would have guessed that Bruce Wayne the Alpha Male is such a compliant type in the bedroom? "
"Why don’t you just cut the long crap and try Batman the Submissive for the sake of better dramatic effect."
"Ha-holy-batman-ha. And did you just tell a dry joke in bed? That’s just… Holy batman. And I used to believe your ten tons of freakingly freaky secrets can no longer freak me out comparing to that moment when eight-year-old me figured out Bruce Wayne IS batman, or that moment when eight-year-old me was starved to eat a rat corpse just to fill my empty belly BY batman, all in the freakingly freaky bat-cave. How pathetically wrong I was. "