【Pfft!】Orc princesses have too strong eggs.

In order to train the orcs’ fertility, they also use their own bodies.
The orc princess was training the cocks of the male orcs.
The orc princess, who had been training the cocks of male orcs in order to develop their fertility, brought the prospective males into her bedroom and had sex with them for four days.
Finally, a special energy potion is administered to the male orcs.

This is a 22 page piece.