Nishka decides to take @LewdMiqoEmi as her personal breeding cow. One prerequisite of being a cow? Regular freshening, of course~.
Cows aren't just a bikini and a bell. They give milk, they go down on all fours, and they most certainly need to 'moo'. A fact Nishka makes abundantly clear to her new pet.
Overcome by pleasure and instinct, Emi would soon descend into a quivering primal state. Fully yielding to her Mistress, her mind would be broken by the bestial urges of both herself and Nishka.
The mating was primal and lustful. It riled Emi into such a wild state that she entered a desperate heat, releasing a cache of eggs that are hastily fertilized by Nishka's virile seed. Her first litter is claimed by her Mistress. The first of many.