@Annelise what advice do you have for the manly men of Phuks to attract fertile females capable of producing 10-12 children?

Spend the next 10 years meditating and nofapping. No ejaculation of any kind for that matter. When you're ready, cum in her as many times as physics will allow without pulling out or stopping. Stay inside overnight to make sure nothing leaks out. She should then be giving birth to at LEAST 15 identical twins at once. Either that or one of them will eat the other 14 in the womb and you'll end up with a monster baby.