Amy and Josh were panting as Amy pulled her penis out of Josh's vagina, a doopey grin on her face as she looked at Mark. As she did so Mark blushed while trying to look away from Amy. Victoria was currently mesmerized by the fur were her vagina used to be and Josh was laying on the floor in a pile of sweat and lust as Amy slowly sauntered over to Mark.
"There is something about this transformation that the old man didn't tell us, but I figured it out." Amy whispered in her ear as she slowly went around Mark. "The more sex we have, the faster we change. I'm having a lot of it... and you're going to be joining my waypoint." Amy said to Mark before nibbling on her ear, eliciting a blush of pleasure from Mark as Amy lined his penis up with her vagina from behind before thrusting into it.
Mark yelped in pleasure and pain as she blushed before moaning, her vagina starting to shift positions as she dropped onto her hands and knees, being mounted like an animal as Amy thrusted into Mark with all his might. As she did Mark's changes sped up rapidly, her ears growing furry and pointed as a small furry tail poked out from above her ass. Her hands and feet turned black as more fur covered her privates. By the time her vagina had finished moving to the correct position Mark had changed just as much as Amy had, with the exception of antlers, but more changes were about to ensue.
As Amy continued to thrust into Mark both of their feet turned completely black and hardened, their back feet shifting as their toes melded and molded into hooves. Amy's were the mighty hooves of a stag while Mark's were the delicate hooves of a doe. As Amy came inside Mark both of them let out moans of pleasure as Amy's antlers grew slightly longer. It now looked like Mark had a furry pair of panties on with all the fur covering her privates, and while Amy had a similar amount of fur, it did nothing to hide her massive erection as she pulled out of Mark, leaving the soon to be doe panting on the ground as Amy clicked his new hooves against the wood floors.
"Shame, I wanted to keep my feet for longer... But this I can live with." Amy said as he looked at Mark, who's own hooves were much smaller than his. "Alright, new rule girls. All of you are sleeping with me from now on. You had your fun last night... now it's my turn." Amy said as all the girls who could looked at him blushing in their various states of transformation. Amy smiling at his dominance over his herd.