Black Jack (TV) - episode 22 - 10 Apr, 2005

Pinoko meets Tinq, a boy her age, and tried to have an adult relationship with him, much to Sharak's horror. Tinq has a strange condition, though; his organs are reversed, and Black Jack with Pinoko's help undertakes an operation to save his life. It turns Pinoko has been trying to make the Doctor jealous, as he is the one she truly loves. (Source: Wikipedia)