Arthur was a brilliant man, and Eames appreciated that. Arthur was strong and powerful and intelligent. Eames saw all of that and found it sexy. But this, this he saw all for himself and it was all the more special for it.

"Come on, Boy," he snarled, slapping him hard. "You say it or I'm not bending you over the arm of the couch and fucking you, Boy. Please isn't enough," he growled. "You want my dick in your ass, you ask for it."

So different than in the bathroom. It didn't mean he cared for him less, it meant he knew how much they shared and this was part of it.