Naomi Michison, a sci fi writer, has a book called Solution Three, which is about a future world where couples are all homosexual and heterosexuality is abnormal.
Reproduction is by surrogacy.
The book raises very interesting issues but ends ultimately by affirming heterosexuality as the key to reproduction. If students can be encouraged to read this book critically, it's interesting and can be easily related to in vitro fertilization type issues. Michel Foucault, of course, wrote extensive theoretical stuff about medicine, esp Birth of the Clinic and History of Sexuality. In it, pro lifers kidnap a woman to prevent her from getting an abortion. They hold her hostage in a basement and come to befriend her.