It had only taken a few minutes for her father, laced with Sasha's pheromones, to find the rat swarm and open their home to them. He watched in anxious hope for his turn as a wave of furry skittering beasts rolled over his ecstatic daughter, and turn their living room into a squeaking Chittering pile of rat sex. She had sat down on the ground, damp from her own dribbling body, spread her legs wide and welcomed the onrushing horde with an squeal of delight.
Her voice squealed, groaned and giggled excitedly from the writhing mass of furry bodies and red cocks. Occasionally letting burst a. "Yes-yes! More... MORE!" or, "Quick-now, in here, need more quick!".
After a few minutes he realised he couldn't even make her out in the pile anymore, so many rats were rolling around that any glimpse of pink had the same chance of being one of their cocks as it did his girl.
The first time his quivering cock came untouched was when he heard his baby girl shout in glee, "Yes-yes, changing more, so pretty beast-rat". Rather than sate his lust, it just brought them to new, painful heights.
On and on it went. At least a half hour of rat orgy in his living room, until suddenly, as quickly as they had rushed in, all the rats dispersed back into the night. All rats bar one huge rat. A huge rat-creature with a familiar voice.
"Aaahhh father-dad... Am finished-done now, yes-yes!" It cackled uncoiling itself.
The pink, naked rat was three feet tall, segmented tail trailing behind it and pulled itself to its hind legs seemingly with ease, and without the unbalanced look of normal rats. Her face was mutated into a drooling muzzle, with frizzy human hair still spilling from her scalp, though plastered with semen. Her hips and chest were more pronounced and curved than the barrel features of a rat. The chest sported at least a dozen breasts, each tipped with a nipple that were openly weeping clear juices. Behind her a long segmented tail swished happily. Her skin and entire body was glistening, like she had the sticky skin of an amphibian.
Her vagina though, was the most monstrous thing about her; he could see that it split the small creature from ass to navel. An enormous cleft, with ruby red lips peeking out topped with an angry looking apple sized clit. One clawed pink hand was already playing with the enormous button, sliming her juices all over it.
"Yes-yes, am part of swarm now! Hear Queen-Mother call. She want more rats. Such smart queen. I make nice stinky for humans." She waddled over to him. The smell was so powerful he fell to the ground writhing, his cock cumming and jumping in an unbroken stream. "Smart Queen need control humans with ferry-moans." Sasha brought a clawed paw to her nipples, squeezing one which squirted a glob of sticky, pheromone laden juice. "Queen make me stinky rat to help control humans."
"Gaahhh.. hhhnnnggghh.. fff-ffuuu..." He grunted unintelligibly in response.
"Yes-yes. Stinky-Sasha now human favourite. No one want Stinky-Sasha when human, now can't hold back." She grinned widely, showing off her buck toothed maw. "Even daddy want Stinky.. um... Sasha." The slimy rat mutant looked down at her father, writhing in orgasmic bliss just by being near the sillage of pheromones she pumped out. "Daddy make good-handsome rat for swarm yes-yes!", she grinned excitedly, leaning over and licking him, clawed hands scrabbling at his clothes.
"Stinky make-breed, nyach!!!.. man meat". With the rats departing, Sasha felt something slipping from her. The sense of purpose of her rat queen drifted away, like her connection was low. With it, what hive intelligence she had ebbed, and since her most recent change, she didn't have much human intelligence left. She began reverting to a more feral state of being, hunching over and licking her lips at the writhing human in front of her.
She blinked, why was she here? Yummy man was in front of her. Making nice juice... She should help.