How to become a master parent?

Once it goes up at certain point it doesn't increase anymore and they're stuck as adept parents. Trust me i've tried a million times it doesn't go up. Not even when you tell a kid a story. I want jack of all trades but with this little glitch i can't!!!

Once a female reaches 50 years old you can keep putting her with any male 18 or older just as fast as you can over and over and over! Both will become masters within a few minutes! Sometimes it takes between 400 and 800 unions, but it will happen. I have only occassionally had an older female become pregnant. The oldest was 76!