Goodnight has used his French on other people before, but usually to charm them for some reason or another. True, he likes to be charming to Billy as well, but he means the endearments with all his heart. And for his part, he does love that they can exchange tender words in other languages most people can't understand. He likes that they often seem to have a language all of their own, one they can communicate in through looks and little touches here and there. Right now, he feels inclined to speak to Billy in the most loving of French words... but he settles for a contented sigh instead. He's not sure he knows completely what nae sa-rang means, but he likes how it sounds on his friend's voice.

And anyway, when one of those teasing hands finally wraps around him, there's not much room for a lot of other thought. He gasps, more out of surprise than anything else, his hands clenching briefly around the lip of the tongue. His hips also bucked a little into that hand, some water splashing out of the tub in the process. "Billy," he somehow manages, right before those lips close over his own. He moans deep in his throat against those lips as he kisses him back, reaching one hand over to wrap around Billy's arm.

He chuckles a little at his friend's words and the way he kisses and bites him at the same time. "People might get a bit suspicious if we stayed that long and never left our room. But we have tonight and... I do believe I am clean enough for now." Because he suddenly needed to be out of that tub and much, much closer to Billy.