“What if you join us and we all become Amanda’s mother?” Maddie said excitedly.
“Sounds nice to me, it will be cool a double-headed centaur” Liz replied.
Maddie told Liz to get on top of her horse torso like mounting a normal horse then she hugged Maddie’s human torso and waited for her instructions.
“Okay, I bet that I can reach that pole at 10 meters in less than 1 minute if I won Liz will merge with me and she will share the same body” she proposed that bet as she knows that it’ll be very easy and her wish would become true.
Then she ran extremely fast with her horse legs and reached the pole in less than 2 seconds with Liz trying to not let go of her torso, after that, the changes started to appear. Liz that was hugging Maddie’s torso felt how her clothes disappeared and her chest started to merge with Maddie’s back, she sensed how her breast was drowning and disappearing as her arms and legs melted too, then her body and back were fully absorbed and saw how her head moved next to Maddie making them a single torso with 2 heads, sequentially 2 extra arms appeared, one under each Maddie’s arm and finally Liz’s face started to morph and change, feeling how her face aged like Maddie and finalizing with 2 extra breasts growing below their existing ones. They were happy with the results, a female centaur that her torso was a six breasted human with four arms (Maddie controlled the top ones and Liz the bottom ones) and two heads of mature women, their frontal legs were human with a human pussy in the crotch but her back was a horse one with a big mare vagina and long horse cock with their respective horse legs.
“This feels incredible” Liz happily said “I can’t believe this is real, even I can feel Amanda growing inside my belly and Alex’s big horse cock and ballsacks”.
“I’m happy that you liked the results, welcome to the centaur maternity, also I made that everyone thinks like this body was always normal and don’t complain about that, the same thing is going to happen to Amanda's body” Maddie replied.
“Cool, now what remains is wait for her birth or we can do other things if you want”
Hmm, I think we can...