That will be some time! Susan is still feeling rather - clingy, in truth - from her dream, and in combination with Lancelot's reaction to her two little shots, it lends itself to a heady sort of urgency as she clutches at him. Even when she pulls away to catch her breath, just for a moment, she buries her face in his neck, but the faint smell of dried sweat there has her kissing him again a moment later.