But not long after he asked himself what to do with his erection, he suddenly came again when he told himself “I know what I do with my hard-on, she was so good to me, so now I am good to Domi-neigh.” And when he ended his sentence suddenly another orgasm hit him and he plastered another stable wall with his hot horse seed.
After he came and calmed down Rusty left the stable and moved on to the main house. Wanting to surprise Dominique he tried to sneak into her room as quiet as possible, luckily for him most of the house had a carpet-floor so his hooves would not make too much clopping sounds.
Finally he reached Dominiqes room, where she wrote in her diary, and opened the door as silently as possible. Though he was as careful as possible to not make her aware of him, he failed, as she suddenly hopped from her chair and wanted to shout for help. But he was fast enough to keep her mouth shut and said “Be quiet. It is me, Dusty-Rose, or better, I was Dusty-Rose, before I transformed. Now my name is Rusty and I want to thank you for the good live you gave me until now.” And while saying that he used his free hand to take her riding pants off and slip his hard and leaking cock in her pussy from behind her.
Not long after his cock slipped in her pussy Dominique suddenly felt pretty hot, while her breasts shrank and and got flat and hard pectorals, then her ass puffed up more and turned more horse like. Suddenly Rusty felt really uncomfortable in her pussy as something began to push him out of her. And finally with a wet plop her clit came out of her pussy starting to swell and get mottled while it transformed into a horse cock. And the lips of her pussy formed her new sheath. With a noisy plop her ovaries fell into a new formed scrotum.
Finally her legs transformed into a pair similar to Rustys but not that muscular. After her or now his lower body had fully transformed, Rusty jammed his huge cock into his nice inviting horse anus. Dominque or now Dominic suddenly neighed as he came and shot a load of his new male organs. And while cumming his body pumped up and starts to get more muscular, but not as big as his alpha stallion. And also his head transformed into that of a stallion and on his whole body grew pitch black fur, except for a white blaze on the bridge of his horse nose, and white ankles on his hooves and hoove-hands.
Smelling the scent of his new mates cum Rusty suddenly neighed loud too and shot a huge load in the ass of his former rider, making his belly swell a bit from the sheer amount of cum he deposits in him.
With a wet shlorp-sound Rusty removed his cock from his smaller mate, gave him a kiss and said “Whew, that was intense. What do we do now, uhm how should I call you?” And Dominic answered “Call me Dominic, or Dom, if you want. And let’s rest for a while, before we decide what we do.” And after that both lay down on Doms bed which creaked under the heavy weight of ther new muscular anthro-himbo-stallion bodies…