"Look sis, as Lily is my pet we decided to have an independent pet-owner relationship living together in our own home, and we had this kinky idea to make your womb our home" Steph said to her sister laughing a bit at the pun.
Steph reality's alteration made Hannah act like it was completely normal and felt turned on about it. She didn't think about having children but liked the feeling of being pregnant and since Lily and Hannah could come and go out of her womb it didn't matter to her.
"Ooh, that's why that masturbation section felt extremely good, so you two entered while I was doing it? I'm liking this think of being your new home" Hannah smiled.
"Yes, and before we were deciding to give you an animalistic parts to your body, but decided to do it later" Lily said.
"That actually sounds cool, why not doing it now? By the way, how are you going to do that?" Hannah asked.
Steph took out the computer and explained its functionality to her older sister, at the beginning she thought to save its secret only with Lily, but decided to share it with Hannah since she was now part of her new life. Moments later Steph showed Hannah all the possibilities and changes that they could do to her body, but she didn't know what to choose from so many options.
"Hmmm I like this one, but also that one and ughh... I can't decide!" Hannah got frustrated, but then she thought in a cool idea. "Since I can't decide from all of that options, why not giving me all of them?" She asked. "I can't do that, that would overburden the computer and wouldn't work" Steph answered. "No silly, why not making me able to change my form at my own will? So if i don't like it or change my mind I can easily change it, besides it would be useful for you two traveling inside me, being able to put some bat wings if you want to fly or give me some fish parts if you want to go underwater for example", "that sounds amazing, so you will be a like a shapeshifter chimera", "I don't know what that means but sounds cool" Hannah giggled.
Steph put her hands to work and applied the changes on her big sister, the transformation was quickly but after looking at Hannah nothing changed in her appearance. "Try to change yourself" said Steph.
"Sure" Hannah answered and decided to test her new powers. Her legs started to become thin as little yellow scales covered them, then her legs morphed its structure turning into chicken legs, her torso grew brown fur that extended to her arms, her breasts grew extremely bigger and turned pink as her nipples disappeared, seconds later four small teats appeared in each breast revealing her new cow udders, for the final change her tooth retracted only leaving the fangs in her mouth which each one extended into a big cobra fang, then the hair in her head fell and her ears shrunk, being her head completely covered in yellow and brown scales, finally her head changed its structure to turn into a cobra head.
"What do you think of thissssss?" Hannah hissed happily with her new look.
"You look beautiful!" Lily answered happily.
"Agree and this will be useful for our next travel" Steph said before entering with Lily inside Hannah's chicken pussy, the umbilical cords attached to their bellies and prepared for their next destination.