Edipo esclavo (1970)

Love knows no age, nor does paternity know sexual orientation. Alfonso falls in love with Carmen, just as he did with Roberto, his father. Myriam, his mother, has a relationship with Manu, much younger than her, even younger than her own son. Miguel is Carlos' son, he did not know his mother, he has a sentimental relationship with Julio and both want to be parents with a couple of lesbian friends.