"I wonder if all bed/egg cup combos are shaped like this? Or is there some kind of like, saddle recliner or something?" wondered Rachel out loud. Samantha, hearing it grinned. "Well, we only need to buy 1 bed since I can easily sleep right her in my Chiffy's pussy pouch. Honestly, I feel as if I could spend the rest of my life in here."
"Hmm, interesting. Do you perhaps feel some sort of parental bond with Chiffon? Where she is like a mother figure to you, or yourself as her child?" Asked Leonard.
"Uhh, can't say that I do. If anything, I think our relationship is best described as being healthy D/S, I guess. And in that aspect I am the Dom." openly stated Samantha.
"Really? That is fascinating. Normal sciences would depict you as being dependent on Chiffon who would be either your primary caretaker, or actual parent, if we are looking at common marsupials as a reference. So for the roles to essentially be completely reversed is interesting. I wonder if that fact had any impact on determining your rider mutation?"
"What is a rider mutation thingy?" Asks Jen.
"Well, when a female rider bonds with their bouncerbutt, then some part of them, usually involving their feet, turns phalic in shape to allow for the pair to experience sexual intercourse. Rachel's heels, and Samantha's entire lower legs are 2 different forms this mutation can take. We think that there is some kind of a connection between how the rider and their bouncerbutt either interact, and/or are positioned. For example, you Jen, are a speed based bouncerbutt, clearly. These kinds of bouncerbutts tend to have the largest amount of b-fat in their behinds, and rare cases like you and my wife, can even lose their human legs in full, although it is quite rare for this to occur mind you. Chiffon here is what we call a "packbooty". She is able to haul a large amount of cargo, since her rider rides in front of her and not on top of her butt. She also is incredibly strong in terms of her ability to pull and carry heavy loads around. Kind of like a pack mule, thus the name. There are many other kinds as well. Take "floatybutts" for example. They are very buoyant and quick in water, where their ass is more flat but spread out over a much wider area, almost creating a platform to which numerous people can actually stand on while she floats in water. It really is quite a fascinating subject."
"Ooh!!!! What name is my type called??" Excitedly questioned Jen.
"We are called booty-blitzers Jenny!" answered Riley.
"Exactly. And as such, it may be why Rachel's mutation is closely resembling spurs that horse riders often use to wear to make their horse move in certain ways or go faster." Expands Leonard.
"I guess that make some sense. I can at least see the possible relationship" lied Rachel. She knew exactly why here heels were like this, and it had nothing to do with biology aside from utter perversion. But if this is how reality is warping the story, then she at least could appreciate how it is doing it. After a tour of the area, the foursome said goodbye and exited the house. It was getting late into the evening already and it was time to head home. They do not have school tomorrow either since the place is going to be closed for renovations until Wednesday night. As if it was natural, they all wound up back at Jen and Rachel's home. Thankfully they had cleaned up the entire place before they left, as Jen's family were now also back home.
Chiffon and Samantha were common faces there, so no one really minded them just showing up unannounced and letting themselves inside. This was true for all of their families too. When the girls bounced into the house, Candice was the first one to greet them. But upon seeing Chiffon and how she also was now a bouncerbutt, with Samantha as a rider, she seemed to become a bit sad. She had been looking forward to being on the same squad as her older sister, Rachel, and the rest. But now 3-4 of them were unable to participate. Rachel may still have been able too, but Candice knew that she never would because of how attached she is now to Jen. "Hey Sam, why are you in Chiffon's pussy? Actually, how are you even able to fit inside it?" Asked Candice. It was an honest curiosity that Samantha and Chiffon would need to get use to answering. Their entire "packbooty" classification was apparently as rare as Jen and her cousin's full leg absorption trait was.
"Well, this is just how we are now. I ride Chiffon from inside of her pussy, which doubles as a pouch. Kind of like a kangaroo does with their babies." Quickly explains Samantha. Candice nods her head in understanding, then asks something unexpected. "That's kind of cool, can I try it?"