This was not idle curiosity. Doctor Kinsey had heard, and there was a theory going around at the time, this being the 1940s, that the force with which semen is thrown against the cervix was a factor in fertility.
Esto no era curiosidad ociosa, el Doctor Kinsey había escuchado y había una teoría rondando en la época, eran los 40s, que la fuerza con la que se arroja el semen hacia el cuello del útero era un factor de fertilidad.