Nadia slipped her head down, working slowly, diligently as her eyes glimpsed back up to watch Lizzy's reactions to every stroke.  She started to gently hum as she licked Lizzy's pussy, but made sure to give special attention to the clit.  One hand stroked against Lizzy's thigh while the other reached up to grab the breast which Lizzy had left unattended, and once she was sure that Lizzy was ready, she slipped two fingers into Lizzy's pussy.  From there, her tongue stayed focused upon Lizzy's clit, as Nadia hummed and stroked.