Willy/Milly (1986)

I have been wandering around IMDb for a couple of years now, looking for a movie to see if I find it as funny now as I did then. I think I found it. All I remember is the basic plot and one outrageous scene. It's about a girl who wakes up with male genitals in addition to her female ones. A doctor says he can operate, returning her to a single sex. Either sex. She wants to try out being a boy first.

The scene I remember most is when she(he) tells her best friend, another girl the same age (10-12). She doesn't believe it for an instant, so she(he) shows her. The friend, confronted with her first ever penis, wants to examine it closer, but she(he) says "NO WAY!" That scene has stuck with me forever. Unforgettable.

That is all I remember, other than the fact I enjoyed it at the time. That was many years ago. Too bad it isn't available on video or DVD.