"Oh God!" Officer Den moaned as he orgasmed with the most force and pleasure he had ever experienced. As it subsided, Officer Den felt pleasantly drained and draped himself over the Centauress' rump. Her equine vagina was still rhythmically squeezing Officer Den's slowly softening cock.
"Ahhh...ohhhh...hmmm..." Mike was still in his/her blissful after-sex world. Eyes closed, he caressed his sides and brought his hands up to cup his pert, still heaving breasts. Feeling Officer Den still inside him, Mike took a half step back, trying to prolong the wonderful feelings. He thought, "I...I can't believe I just did that. I'm still Mike...I know I am. How could he have done that? But it felt so good..." He gave his tit a squeeze.
Officer Den apparently passed out, because Mike felt a sudden withdrawing and heard a "thump". Looking back and moving her long, flowing hair out of the way, she saw the policeman sprawled out on the ground.
Disinterested, Mike was about to turn away when Officer Den suddenly began to move. His movement was similar to someone stretching, but he still appeared to be sleeping. He arched his back, stretched his arms and legs, moved his head. His naked lower half was clearly visible, and Mike just noticed brown hair growing on Officer Den's body, as well as a sheath begin to form around his still twitching cock when Mike was overwhelmed with something inside of HIM.
It was so sudden and so powerful Mike was literally
taken aback, and nearly stepped on Officer Den, now sporting a dark brown horse tail. The sensations Mike was feeling was akin to those that he experienced having sex. He felt weak-kneed and they finally buckled. Mike felt his fur pulling in and felt himself grow smaller. Reaching for his neck, he felt his mane pull in. Then his ears lost their equine form. Looking back, he saw his lower half become distintly smaller. His sex felt like it was on fire and Mike moaned with delight despite his fear. Soon, Mike passed out.
About 30 minutes later, Mike groggedly awoke. Something was different. He felt juices and cum stil dripping down his leg. His leg! Mike snapped to attention. "Holy crap!" Mike was no longer a centauress, but now a very cute, young, well proportioned woman. Woman! Well, at least he was now human. Mike felt his ass. It felt good, both because it meant that it meant he was indeed a human and because, well, it felt good!
Getting up, he looked at Officer Den. He was still sleeping, but now a centaur. His shirt was still on, but it was clear his upperbody was largely unchanged. His equine lower portion had rippling muscles and covered in brown fur.
"Oh my God! So that's what happened!" Mike said outloud to himself. Originally a magical centaur (male, of course), he had been giving warnings specific to his kind. One of them was that if he had sex with a human, they would swap humanity/centaurness (unfortunately, not gender). "That means I can fix this!" Mike knew of a place where they sold gender changing potions. Now, if he could only keep his current form and make it to the shop, he would be OK!!!
Mike was elated. Joyfully, he began searching for something to cover up his feminine body. Bending over to grab a blanket, Mike felt powerful arms grab her from behind. "What have you done to me!" Officer Den moaned. Apparently, he didn't know about the reprecussions of having sex with a centauress...he wasn't kidding when he said he usually didn't bang them. "You're going to pay for what you've done, you little slut!" With that, he moved his hands up and began to knead Mikes ample breasts. Then, with a shove, he pushed Mike to the ground. Mike looked up and saw Officer Den's cock fully erect. Mike licked his lips, aroused yet terrified. He couldn't let Officer Den have him, or Mike would become a Centauress again!!!