Philoprogenitiveness, n. [Philo- + L. progenies offspring.] Phren [*].
The love of offspring; fondness for children.
[*] the term comes from the "science" of phrenology, which is as a system for assessing your personality from the bumps on your head. Philoprogenitiveness can be assessed by reading a bump on the lower back of the head.
Louisa May Alcott used it in Little Women
>Gentlemen are sometimes seized with sudden fits of admiration for the young relatives of ladies whom they honor with their regard, but this counterfeit philoprogenitiveness sits uneasily upon them, and does not deceive anybody a particle.