Judging from the approving hum the gnome gives, stroking his head feels good. He keeps one hand wrapped around the shaft of Bel's cock; the other rests on his stomach, where his thumb moves in idle circles. The heat and weight on his tongue is arousing; the bittersweet taste even more so. Once again, though, it feels as though there is something familiar here, like the familiarity of smooth, dusky skin. The scent and flavor of the Underdark, maybe, running through both their bodies.

He makes a little chuckling noise at the commentary and draws off of him with a soft, wet pop to speak. "I like it," he says, breathless. "I like doing things for people. Makes me feel..."

He licks his lips, searching for words. "Like I'm a part of you. For a little while."

Fortunately for Bel, that seems to be all the explanation Barcus can come up with for now, and he's eager to go back to what he was doing, taking as much of him as he can and sucking expertly. Bodies are a lot like machines, after all. Leave it to an artificer to learn how to make them sing.