Inflatable Centaur potion

Alexia jumped us as she swallowed what she was sure was a potion that she broke.

"Oh no, no, no, what was it?"

She franticly started searching while she felt more pressure building in her rear. So far the effects combined with Booty potion and her rear ballooned out even more. Alexia decided to undo her new pants, maybe it was another Booty potion. When she released her ass from the constraining pants, she found a piece of glass.

"...entaur potion."

"A centaur potion? Am I turning into a centaur?"

"Lust, where are you?"

Meanwhile, Lust was watching Alexia through her magic ball, scrying spell provided her with all the details. She would show up in person once Alexia transformed.

Alexia was now panicking, she got so wide she got stuck between two boxed and couldn't move forwards or back. As she looked down she saw fur growing on her legs and felt her toes getting shorted. Her rear started to extend backwards. The weirdest feeling for here was the sensation of having another set of limbs sprout from behind her. She immediately used them to get a better grip and push herself out of the storage room. She stumbled and fell face first on the floor, in the hallway. When she tried to get up, she got confused by her new limbs and fell down again. When Alexia turned around she saw that her lower half was now fully transformed. She was a centaur now. With a big butt. That was a notable thing for Alexia, her ass was like a bubble sticking up on her new rear body. It must have been the Booty potion she had earlier having an effect on her now. Great.

"My, my, you should have been more careful." Alexia heard while she was looking at her ass.

"Lust! Please, I need your help! Look at what happened to me!" said Alexia, pointing at her new body.

"And that's not all. There is another thing you can do now." answered Lust while looking into a crate near the storage room entrance. After another second she pulled out a hose. "Let me show you."

"Show me what?"

"Just wait and see, it will feel good."

With that she approached Alexia from behind and inserted the hose into her rear.

"What are you doing?" squeaked Alexia, she got so surprised she managed to stand up. That surprised her even more. But her thought were interrupted when she heard hissing. Then she felt air flowing. Into her. The hose was pumping her up! Alexia's ass inflated even more, like a beachball attached to her horse rear. Her belly also swelled up a little. It felt extremely arousing, she was getting wet even from this. Before she could reach her peak Lust stopped the air.

"Now, what should I do with you?"