Regulus opened his eyes at that one, looking Orion straight in the face to try and gauge the truth in that statement. The boy wasn't lying though, or at least he wasn't giving any of the common indicators of lying.
"...they share a bedroom?" He repeated, unable to help the somewhat disturbed expression that crossed his face. He winced, finally starting out of the alley and unfastening his badge and cloak as he walked. "That's...I don't have a word for that. I mean, there's obviously a word for that, but it doesn't really...yeah. That's gross. I really need my coffee."
There was only one reason Regulus knew of that adults ever shared a bed, and he was not discussing it with a kid.