“And you’re sure you two want this?” Christy asked her two new friends after their weird request.
“Yes, Christy, we want to join you as parts of your body,” Lola confirmed.
“It's not like we have anything to lose,” Hope explained. “My world only consisted of darkness before you came and Lola was just a simple dog before you gave her sentience. We have to give you something back in return. Joining and pleasuring you as you make the world a better place is the least we can do.” Lola furiously nodded in agreement.
“What do you say, Madison?”
“I’m looking forward to having some real company here. The more the merrier. Becoming your cock was the best thing ever and I can't wait to see you experience it too,” Madison replied.
“And before you ask,” Christy’s other cock spoke up. “I’m just an extension of your consciousness, who wouldn't mind going back into your mind and giving up this spot for someone else. We both know you also want it and have already fully planned it out. You're only stalling for time, because you think they didn't have enough time to think about it when they clearly had.” Both Hope and Lola nodded at that.
Christy sighed. “Well, I do know myself best. Come on, girls, time to join us.”
Hope immediately threw away her clothes (Lola would have if she had worn any) and both threw themselves at Christy to hug her right where her two lower torsos separated. She shot themselves with the transformation gun and the first thing that happened was the disappearance of Christy’s left horse body, which held the Christy cock. Though the right horse body didn't stay alone for long, as Hope’s and Lola’s heads started flowing into her human back as the rest of their bodies grew to match the height of the horse body. Soon Christy’s upper torso was connected to three taur bodies, still dividing right below her breasts. But while the right most one still looked like a horse, the middle torso looked like a bend-over human with another pair of legs instead of arms. There was even a pair of boobs behind the first pair of legs. The left body was that of a dog, just without a head, and looked like Lola before she turned into a human. It even featured the teats.
Out of between each of the back pairs of legs a tube of flesh started growing, which soon formed into human torsos like Madison. The humantaur dick turned into Hope, while Lola became the dogtaur’s penis, with an additional knot below her torso.
“Welcome aboard, sisters,” Madison greeted her new bodymates.
“Wow… if all transformations feel that good… ha… I wouldn’t mind more,” Hope panted. “This was… arousing.”
“Yes, it was.” With lidded eyes Lola moved closer to Hope and started licking her face. The pleasure of that action was distributed among all four girls. After a few more licks Hope caught Lola’s tongue with her own mouth and they started making out properly. “Finally I can properly convey my love.”
“Man, we might have to find a fourth one or I’ll start to feel left out,” Madison commented as she started playing with her own body.
With two of her dicks doing it with each other and the third with herself it didn't take long for Christy to come and shoot gallons of cum out of each dickgirl’s mouth.
“That was great, girls,” Christy said after catching a breath. “So, as the new ones, I’ll allow you two to choose where we should go next.”