Before she could think, Melissa pulled Erika into another deep kiss, and Erika fell over Melissa. The two of them lifted their school skirts and started grinding their soaking wet panties together.
Arching her back on the bed, Melissa moaned loudly as her girlfriend grabbed her left breast and started suckling on its oversized nipple hungrily. She took her own right breast in her hands, making it roll on her chest towards her mouth, and she started milking herself.
As the grinding intensified, the girls grunted louder and louder until a tear of fabric was heard - both panties were cracking at the seams under the friction. The shreds were cast aside and the two teenagers resumed their frotting, their slick pussies flicking each other's clit.
Erika was barely aware of the substance she was ingesting. She couldn't break free from the texture of Melissa's nipple against her tongue. Her crotch was on fire, and she knew that if she hadn't ingested her cum earlier, she wouldn't have resisted pounding her canine dick into Melissa right now. On that thought, her clitoris hardened and she felt her insides clench as an orgasm hit her.
"Gnaah! MELISSA!" she let out in ecstasy, her friend's breast bouncing free from her lips and oozing milk all over. Melissa arched her back even more as she hit climax too, her round belly pushing up. All her teats were erect and leaking. As Erika stood back, several threads of transluscent fluids stretched and broke between their two pussies.
"I'm... I'm sorry Erika, I don't know what's going on with me..." Melissa said as she was catching her breath. "I feel sick and then I feel horny, I feel dizzy... and I'm so hungry!"
"I can... I can make you a quick meal if you need", Erika said as she jumped away from the bed, already regretting what had just happened.
"That would be nice, thanks!"
Melissa's smile looked a bit contrived. She also looked exhausted, and she let herself lay on the bed, her wet belly heaving as she seemed to doze off.
Erika exited the room and walked the stairs down to the kitchen, her clitoris still tingling. Her orgasm felt good, but not enough. She grabbed a bowl and cereals, resting her hands on the counter for a minute. Under her skirt, she could feel her fluids slowly drip down the inside of her thighs...
She slipped a hand under her skirt, caressing the small nub right above her lips. Her clitoris was still rock hard. She flicked it gently once, twice, letting the pleasant buzz resonate up and down her spine each time.
Suddenly, she felt someone behind her, and something hard pressed between her buttcheeks!
"You know what Erika, you really smell like a naughty bitch!" she heard Cole's voice right behind her ear. She could tell he was grinning.
"What are you doing here? Leave me alone you dirty pervert!" Erika growled under her breath. Her body tensed up against his but she couldn't move away, and she unvoluntarily arched her back against Melissa's brother.
"I couldn't... stay in school in that condition. You know how it is, right? These things won't calm down," Cole said, the tent of his shorts throbbing against Erika's butt. He grabbed her groin through the front of her skirt with his right hand, but let go with a surprised gasp. Erika yelped loudly.
"Shit Erika... I guess Melissa still doesn't know what's really inside your panties after all!"
Erika didn't say a word. She was keenly aware she was pressing her butt against Cole's bulge, but found herself unable to stop. He let out a groan as the constraint of his shorts was becoming painful.
"What... what are you doing?" Cole asked under his breath.
Erika couldn't reply, panting heavily as she leaned over the counter and arched her back. She grabbed her skirt on one side and lifted it, exposing her ass and her burning pussy from behind. The scent kicked right in Cole's canine senses.
"It's... the heat..." Erika moaned, and more clear fluids oozed out of her slit. She then slammed herself right back against Cole.
"Fuck, you're going to make a mess of my shorts..." Cole groaned again. Before he knew it, they were at his ankles. Erika reached behind her and grabbed his hips with need, pulling down on his underwear hungrily.
"Erika... I don't know if... GNHH!" he whimpered as his erection sprang free and lodged itself right under Erika, sliding against her slit. In a matter of seconds, his foreskin was already pulled all the way back, and his cock turning a deep red as it looked more and more canine.
Cole held Erika by the hip and groped a breast from behind with his other hand, frotting his mutating member against her slick pussy. She put a hand over her mouth to muffle her whimpers of pleasure while clenching the counter with the other.
As the pointy head of Cole's penis stucked itself in Erika's slit, she pushed back hungrily. Her vagina swallowed it whole and he let out a surprised gasp as his cock began growing more inside her. He started thrusting back and forth, reaching deeper as Erika's insides clenched tight around him. Chaotic spasms animated his hard cock and he could feel bursts of pre escape him!
He was totally losing control of his dick!
As a pressure increased at the base of his member, Cole tried to pull back, and found himself unable to - his inflating knot was already too big to pop out of Erika! It was hitting all of Erika's right spots though and her high-pitched moans were becoming louder.
His balls were swollen to the maximum and started churning intensely. He grabbed Erika closely, lifting her feet off the ground for a second as his monster cock began shooting canine cum into her womb. Helpless, Cole let out a weirdly girlish yelp.
Erika felt her insides spasm pleasantly around Cole's large member and a wave of orgasms hit her. She pressed herself against the kitchen counter and whimpered lewdly as her lower belly tensed, quickly filled by the thick goo. That's when she started to realize the mistake she had made.
She was still high from her climax and panting, but weakly tried to pull away from Cole's cock. His hard knot was just too big! She felt the member's throb inside herself as more cum escaped Cole's plump furry balls to impregnate her.
"Erika you bitch!" she heard behind. Cole had not spoken.
Melissa was standing in the kitchen's doorway, wrapped around a blanket to hide her belly and teats.
"Mel... Melissa, wait..." Erika said between two moans, Cole's canine cock still stuck in her pussy.