With hardly any room to think, and movements made smooth long ago out of practice, his hand snakes over to a small container and flicks a sugar cube into the cu. The mug gets two stirs and then handed over to her. 

He's just about to reach for his own mug again when she calls him out, entices him to slake his need to know. A deep breath and a slow exhale, his hand withdraws from the mug as he turns to fully face her this time. He had wanted his cup of coffee...but... his eyes blaze as if she stoked a fire, and he seemed to immediately lose. All of the questions ran through his mind, but there's only one that is immediately relevant. It demands to be asked. 

"What the hell was that? Why the [i]fuck[/i] do you have the name..." He grits his teeth, he can not. Invoking a demons name has consequences. Lilith is an exception, she is sealed away. But the devil...Sammael...Satan...The commander of all that is evil...

He still runs free. Mostly. 

Adam's eyes see nothing but this girl now. He knows the room like the back of his hand. It is, perhaps the best place for him to be in sudden conflict. He cant help but go over everything he knows about her, once again not feeling any signs of her being or being possessed by a demon. A few scenarios go through his mind. As well as the fact he had made an agreement with her, his instincts also bring to mind several ways that he could end this quickly. 

"...Who chose your middle name?" he tries asking a different way, at least completing a question before anything else can be done.