"Oh god what we should do know?" Ema panicked.
"I don't know too... But hey, it doesn't let you transform Alex right?" Lucy asked trying to figure out how to fully control her four legs.
"Yeah... Let me try something" Ema typed on the computer selecting Lucy as the subject, making her legs change into a pair of horse ones, after clicking done her frontal legs gained brown fur, turning her feet into hooves and morphing into a horse like legsz while her rear was still human.
"So I can transform you but not Alex since she's the one carrying your... Baby?" Ema confusedly said.
"This is so weird, she can't be changed but she's technically a part of me, so are we stuck like this?" Lucy said, getting used to her frontal horse legs.
"I think yes until you give birth or we do something else" Ema responded.
"I think I can get used to this, it kinds of turns me on"
"Yeah, me too" Ema got hard again.
"I have an idea" Lucy started to type again, changing her body to something more "normal", clicked done and transformed. Her rear of her humantaur body disappeared, Lucy was again a four breasted girl with horse legs.
"What did you do, and what happened to Alex?" Ema asked.
"Well, since the one who is pregnant can't be transformed I did something, I set that her rear legs were part of my body so I could remove them, leaving Alex as a torso with a womb and vagina which I fused with mine, really weird don't you think?"
"Really weird, so Alex is just your womb and pussy right know?"
"Yeah, so her existence is kinda reduced to it right now, just like Jeff is your cock and testicles, she's just my pussy and womb" Lucy smiled and patted her belly with one hand while introducing some fingers in her wet insides, "I hope you like that" Lucy said to her cousin, now a part of her feeling the pleasure doubled.
"I guess that's better, now we can do more weird changes again with the exception you're now pregnant, not that it matters" they giggled, ready to make some changes again.