There are two kinds of watching-a-movie, one of which involves popcorn and snarky remarks, the other of which the two of them are currently engaged in—the sort that consists of a movie playing somewhere in the vicinity, with absolutely no one watching it. This is because the couch is low enough (this is an excuse) that Musichetta can arch her spine over its back just slightly, pulling her shirt up with her shoulders just enough that there would be a strip of her stomach bared even if Grantaire wasn’t on his knees in front of the couch, pushing it up.
That, by the way, is entirely the fault of the fact that she thinks it’s entirely appropriate to have her legs stretched out onto the table in front of her whilst they’re watching Casablanca. She knows full well how fantastic her legs are, he’s told her a hundred times.
She hooks a foot over his shoulder and pulls him closer, close enough that he can lean between her legs and press a kiss to the exposed skin (fallow, but it tastes more carmine) directly below her navel, which he does because he’s nothing if not opportunistic and probably halfway in love with the curve there. He’s almost entirely certain she does that (that pushing him around with her feet thing) because he knows he likes it, and he decides that’s quite enough of that.
Her laughter is close to a giggle when he drops his hands away from her breasts to grab her by the hips and hook her pants down as far as he can get it before she uses her thighs on his shoulders to push upwards and help him.
Then he makes goddamn sure she’s not giggling.