After cheer practice, Jen, Claire, and Lucy began heading home, the walk home was easier due to now having four legs, though the fact that all of their genitals were exposed was a little awkward for the two cock-girls, not that anyone they passed paid them much mind. As they walked through town they became more and more aroused from Lucy's tongue stimulating their frontal vagina, causing their cock-necks and the dog cock between their legs to grow erect. At first they though they might be able to last until they got home and could get one of their parents to help relieve them, but the growing lust quickly became unbearable to the two girls, and they realized that they would have to blow off some steam on the way. They eventually find an alleyway that bends behind a building, and head down it, planning on quickly masturbating out of street view so they can finish returning home.
Just as the girls had begun their self pleasure however, a woman turns the corner.. The woman is dressed in a navy blue pants-suit and is wearing glasses with rectangular frames. She has long black hair that reaches down to her lower back and her skin is a light brown. When the woman sees the girls her brown eyes widen upon see what they're doing.
“Sorry!“ She blurted, covering her eyes as she explains
“I saw you two go down this ally with your dog looking a bit flushed and thought something might be wrong, but I see that you want some privacy so I'll get going n-mphh” Jen reaches forward and grabs the woman before she can leave and pulls her into a kiss, pushing the pill that had just appeared into her mouth. The woman at first resists against the sudden advance, but when the pill begins to take effect she presses deeper into the kiss as her changes wash over her.
As she continues to passionately kiss Jen, her hair begins to lengthen, growing until it reaches the ground and begins pooling around her legs. Once her hair finishes growing, it then begins to clump together, strands merging together into dozens of tentacles as thick around as a quarter. Her new tentacle-hair then turns a shade of dark purple, as suction cups grow on the undersides of each tentacle. As soon as her tentacles finish forming the woman puts them to work, a few of them wrapping around Jen and Claire's shaft-necks and jacking them off, one worms its way into Claire's mouth, and several more penetrate Lucy's vagina mouth. As the the woman tentacle-fucks the conjoined girls her changes continue, her legs and feet simplify and lengthen into six foot long tentacles identical to the ones on her head, except that these ones are thicker than a two litre bottle at the base, slowly tapering off to the thickness of a soda can at the tips. These tentacle-legs then split into four, than split again into eight, leaving the woman with the lower body of an octopus.
When her changes finish the woman retracts the tentacles fucking Lucy's vagina mouth before wrapping her tentacle-legs around the girls tauric body, pressing her vagina, that now resided underneath her torso in the middle off her tentacle-legs, against the dog-girls mouth, who began to eagerly lick her vagina. Once she was firmly attached to the girls she took one of her tentacle-legs and began to tentacle-fuck the conjoined girls rear vagina, and took another one and began to jack off their dog-cock.
It didn't take long for all four women to reach climax, with Jen cumming into the woman's mouth the output quickly becoming to much for her, causing it to spill out across their bodies, while Claire's and their shared dog cock's cum coating the opposite wall of the ally. Once everyone has recovered from their orgasms, the woman unlatched from the girls and stood in front of them before introducing herself.
“Sorry about jumping you like that, I'm pretty pent up after work and it looked like you where coming back here to jack off, so I figured you might want some help. My names Cyra, what about you two?”
“I'm Claire, this is Jen, and our dog is called Lucy.” Claire introduced the three of them to Cyra
“Well, I've gotta get home, and I'm sure you've got places to be so here, take my number and give me a call if you ever need a quick fuck.” After handing a piece of paper with her number on it to the girls, Cyra left them alone in the alleyway. After taking a moment to catch their breath, the three girls head back onto the sidewalk and finish their walk home.
When they arrived back home they noticed that their yard was back to its normal size and that Lucy's giant doghouse was now gone, due to Lucy now being part of them. Claire's scorpion-taur mother greets them when they enter, since she is the only one of their parents that doesn't have a job. The conjoined trio go to their room and drop off their school bag, before deciding what they want to do for the rest of the day.