Selbstversuch (1989)

A female scientist tests out a new biochemically induced sex-change procedure in Selbstversuch (1989). In the not so distant future, Johanna (Johanna Schall) is working in the male dominated scientific community and is interested in the mechanics and politics of gender. She tries out her new bio-chemical technique to become a male, Johann, then later breaks off the experiment and returns to being a woman. It may be a film about sex change experiments, but there is no denying that Katrin Klein is all woman when she unveils her massive melons in a slippery shower scene. That foxy fraulein will plump your bratwurst!