In order to create a baby, a man and a woman need to have sex. Strictly speaking for the man this is an act of minimal investment since he can (and sometimes does) ditch the woman and leave her holding the bag (or baby, if you will). Unless she gets an abortion (which she never does) or puts the baby up for adoption, she either has to raise the child alone or with the help of a stepfather. Be wary of spoilers as you read. Examples of Glorified Sperm Donor include: