Erika hit the nozzle and sprayed Emily's chest down to her exposed groin once, hoping it would do the trick. Emily let go of her waistband, reajusting her skirt while her shirt was still open, both girls transfixed on Emily's breasts. Soon the glistening from the salve subsided as it permeated her skin and the rest evaporated.
"It... it feels warm..." Emily said shakily. Then a sharp electric tingle ran through her, and she let out a yelp as she fell forward, clinging to Erika in a tight hug. "Erika! I feel something!"
Erika hold her friend, doing her absolute best to keep her from pressing onto her sensitive dick through the fabric. She could feel Emily's body trembling from the transformation as the belly receded, turning flat once again... but also subtly maturing her petite body imperceptibly, as Erika felt her friends' waistband stretch slightly over rounded hips. She could also feel Emily's breasts pressure against her own increase as gained one cup.
Emily squirmed against Erika, her breath erratic.
"There is something, something inside my panties! It's... ahh!" she almost cried out as she pushed herself away from Erika to look down. Her eyes widened when she noticed her round breasts and tried to pulled down the bralette, but it was too small to come down and cover anything now. That's when both girls noticed the rows of soft canine nipples leading down to Emily's crotch.
With a trembling hand, she then lifted her skirt, and pulled down the front of her panties to look. A plump little one inch cock sprung out.
"What.. what is this Erika! It feels weird..." she whimpered.
"That's what you make babies with. It is very sensitive, so you must be careful with it" Erika explained, her own much larger penis getting warmer and warmer in her panties.
Emily's was turning entierely red. She hold her waistband with one hand while she tugged on her little cock with the other, and jumped a little, removing her hand swiftly. The member twitched, then lifted itself up with the begining of an erection.
"Oh no... it's getting worse Erika!" she whimpered as her penis started poking out of her panties. "I don't want to touch it..." She closed her eyes, sniffling.
"It's ok Emily, I can make it go away."
Erika ignored the tingling of her own growing erection, and pulled on Emily's panties to touch the tiny member. The skin was incredibly soft, and feminine in a way, in contrast to what her own dick had become after mutating several times with each impregnation and the salve. Emily started moaning softly, pushing her groin in Erika's hand while her penis got very hard and erected fully at almost 3 inches.
"Don't stop Erika, it feels so good..."
Erika turned red but kept rubbing Emily's small dick, making her friend squirm on the couch.
"You see, the only way to keep it from being hard all the time is by touching it and releasing the pressure that builds inside", Erika whispered as she leaned into Emily's ear.
"But Erika... it looks strange, I don't want want to... aahh... I don't want to touch it..." Emily moaned, her hips rocking a little as Erika increased the pace. Pre became to gush out, and the wet noises of Erika's hand jerking Emily off filled the living room.
"I can touch it for you then, don't worry about it. But you have to behave the rest of the time if you don't want people to notice and get you in trouble. There is another solution, but it has downsides..." Erika hesitated. Emily was struggling to control herself, moaning louder and unable to respond.
Erika pulled on the fabric of her dress, revealing her dick swelling out of its shaft, and panties too small to contain her furry balls entierely. She explained:
"When you touch yourself, a lot of fluid will come out at the very end. If you ingest it, it will turn you back into a normal girl, but only for half a day at most. So it's not a perfect solution. Also the goo will make you... very excited and cuddly, and you will still want to touch yourself or that people touch you. Which is bad, because you need to keep this a secret! And you don't want to get pregnant again! But at least you will look like a normal girl."
Emily was whimpering in frustration now, bucking in Erika's hands. She was trying to listen to her friend, but it all seemed very complicated... and all she could think about at the moment was how good Erika's hand felt on the hard thing between her legs. In the moment she did not care that she was so wet and leaking goo on her own laps or Erika's.
Erika's heart was beating loudly in her chest. As much as she was trying to play it cool, she was incredibly turned on. She moved her free hand to her own erection, which throbbed under her touch. As she started going up and down her length, it grew again in response; she glanced down briefly and her eyes met with a monster.
While she was over 5 inches when she was soft earlier, her penis was taking on more canine traits and growing past 8, and getting more girth with each stroke. She could feel the tension building up at her knot. At the same time, Emily's cock had taken on a smilar shape as well, albeit smaller, and Erika could feel a hard knot grow under her fingers while her friend let out lewd moans escape her throat.
"Eerikaaa... aahhh... something is happening! I can't hold it back... help me ErikaaAAH!" Emily let out as she climaxed, a rope of cum spewing from her small cock and splattering on both her thighs and Erika's. Emily let out high pitch moans, clinging to Erika's neck until the burst of semen calmed down. She then opened her eyes and looked at the mess she had made.
"Oh... I'm sorry Erika, I don't know what happened! I tried to hold it but..."
"It's ok, don't worry. That's what I was talking about, if you drink the goo, you can temporarily make the thing between your legs disappear. Either mine or yours can do the job", Erika suggested.
"Yours is so... big..." Emily whispered, only now noticing Erika's erect member. She leaned forward, touching it with one hand, which was too small to wrap completely around the girth. A jolt of pleasure rand through Erika's length and it throbbed harder. A bead of pre rolled out of the tip and stretched down in a sticky thread in the air. Emily leaned further, her lips parted.
"Are... are you sure, Emily?" Erika asked, sweating a little.
Emily said nothing but kept moving towards her prize, her mouth meeting with the large erection. She began to lick the fluids, first slowly along the length, and then more and more hungrily as the pheromones and chemicals from the goo kicked in.
Erika started panting and leaned back in the couch. She was still holding her massive canine penis with one hand around the base, while Emily was wrapping her lips around the tip of her dick and sucking her. While it began innocently, Erika was loosing her mind over it and it was very hard not to fuck Emily's mouth senseless. Emily put both hands around Erika's hard member, trying to keep it still, and barely succeeding. She lifted her head just for a moment.
"Am I doing it right?" she asked expectantly with bright eyes, pre running down her chin.
"Yes... more... don't stop," Erika moaned, her hand feverishly coaxing pleasure out of her dick as Emily resumed sucking on the head. "I'm close... you need to drink as much as possible", Erika managed to articulate. While the stimulation was not the most intense she had known, the situation was such a turn on for her that she felt the climax build up very fast.
Suddendly, it happened. Erika grabbed Emily's head to keep her down, while her hips started bucking and cum gushed out of her length in several waves of pleasure. Emily hold on to the member as best as she could, gulping down dilligently as much as possible while a fair amount also spilled down her chin, onto her breasts and laps. For a full minute, the living room was filled with moaning and loud wet noises of succion.
Soon enough Erika started calming down, and her penis went limp, retracting a little in its shaft. Emily was licking her lips and fingers when a shiver ran through her. She immediately pulled on her waistband only to see her now soft one-incher turn into a tiny clit, just like it used to be. The canine nipples on her belly also disappeared, leaving only her round breasts unchanged.
"It worked... Thank you so much Erika!" Emily let out in joy, almost on the break of crying.
As she was about to jump on Erika for a hug, the two girls heard the front door open as Erika's mother entered the house, not yet in sight.
"Hey sweetie! I'm hope a early today, how are you doing?"
Erika immediately tensed. She pulled on Emily's school skirt to hide the wet thighs, and pushed her flaccid length back under her dress. It had not retreated completely into her canine shaft yet... She threw a couple of cushions on her lap and Emily's to hide the wet spots that started appearing.
Emily's face was red as a beet, her hands shaking a little as she quickly buttoned her shirt over her breasts, the small bralette still lifted underneath as it would not fit.