To replace broken ones

You will need fresh breeding stock to replace the humans when they get too worn. The goblins have longer lives and are capable of breeding more times with less wear and tear so they will need to be replaced infrequently. The human broodmares were not made to bear Minotaur children..

The oldest of your broodmares had spawned 10 times by your count and three pregnancies were multiples. Her body was a mass of swollen, ruined curves with her painfully engorged teats constantly leaking milk with offspring dangling off. You had shoved more and more potions down her with each breeding; it was now weeks since her last birth and she still wasn’t bred. Her ruin of a birth hole was a prolapsed mess. Although she could no longer breed your maturing sons enjoyed using her to work off frustration. They had to go two to a hole to stuff her completely but she still had some use left. The rest of your breeding stock wasn’t in much better shape. Every so often you got a fresh young virgin to ruin and breed.

Your growing family was now big enough that your strapping sons were helping you pillage and **** with the goblins. Your sons each had several breeders as well. They had their own caves littered throughout the forest. You now mostly stayed home and enjoyed breeding full time and sending your offspring to conquer the world.

One such son brought you a fine acquisition; a dappled young Centauress. Perhaps too young but as they say if it bleeds it breeds. You watched her struggling form bound up as she was in the breeding stand you had made for her. You gave her a heat inducing potion that caused her sweet little mare cunt to blossom out and drench your questing hand in a torrential flood. She begged you to mount her then, your bestial cock as well hung as any studs you entered her untried cunt savagely but it still had a lot more give than a humans. She bore you twin centaurs the first pregnancy. You expect much from this breeder.