"So, how does this work?"
Max stood naked before Sarah, who towered over him. "Well, why don't you let me suck your cock. Then you can suck mine."
She effortlessly picked him up and held his legs so he could grab onto her. This gave him the perfect angle to her erect cock.
"Go on. It's easy once you start getting into it."
To Max's surprise, Sarah's cock had a nice salty taste to it. He gradually let her slide in deeper and deeper until he deepthroated her entire penis. When she finally came, a wet hot stream of thick semen with the consistency of yogurt poured into him until he'd swallowed every last drop.
Sarah had just bene getting ready to lick Max's cock when she climaxed. "Need...need to fuck more!!!!"
Flipping Max around, she slammed him onto her pecker before it finished softening. Once inside the warm folds of Max's anal cavity, it quickly became hard once again.
As the fucking continued, Sarah noticed something. Her horse form was changing. She could feel her hooves turning back into feet, her height shrinking, her mane receding. And Max was getting bigger and hairier.
It was almost like by fucking him, she was transferring her anthro powers to him. Which meant...
Seconds before she climaxed again, her cock vanished. The feeling of pleasure was gone, and Sarah was just a plain human girl with a thin layer of fuzz where her hair was starting to grow back in.
But Max was standing on his two thick hooves. He was now a big jacked horse, and his cock was growing out to 20 inches.
"My turn, Sarah!!!" He grabbed her and thrust her onto his cock. And they banged until Max's balls were completely drained of semen and Sarah felt like a balloon pumped with too much air.
But then...