Nadia kept on working her tongue and her hands, the soft humming quickly turning into outright gasps and moans of sweetest pleasure.  Her body quivered and spasmed as the pleasure built inside of her, but the burning need and euphoria only made her work faster.  Soon the gentle working and caresses turned into sharp drilling, pushing Lizzy as rapidly as she could towards the blissful edge of orgasm, since Lizzy knew that she wouldn't be able to go on for too much longer without coming.  All she could manage was groans and whimpers, not willing to take her tongue away from Lizzy's clit for even a moment.