>>11307857
I imagine the catgirl is a pet and as such is non-verbal

>Boy finds a stray catgirl
>It's only a kitten, similar size to an infant
>Begs his mom to let him keep it
>She gives in and lets him have it
>Little do they know it's not a catgirl, but a bigcatgirl (derived from big cat DNA)
>In only a few years it reaches maturity
>Seven foot tall, muscular and virile
>The boy isn't concerned, but his mother feels 'uncomfortable'
>It's constantly nuzzling into her
>Always getting hard in her presence
>Pressing its face into her crotch whenever she's ovulating
>Becoming overly 'playful' with her body
>Eventually it ceases a little and his mother seems to stop complaining
>Then he comes home from school early one day
>He's Shocked to see his mother being attacked by the catgirl
>She's screaming, covered in bite marks and scratches
>He rushes to her aide, throwing himself between them
>His mother then begins to wailing in apology
>Says he wasn't meant to see this
>Boy suddenly realises
>The catgirl's cock is in his mother's pussy
>They are fucking
>On further inspection, many of the marks on her body are partly faded
>Must have been going on for months
>His mother had been wearing long pants and turtlenecks to hide the evidence
>And they weren't going to stop
>Still in the throes of heat, the catgirl grips him while thrusting deeper into his mother
>Her begs to stop are cut off by the wind being knocked out of her
>He's sandwiched between them, forced to stare into his mother's eyes as shame and ecstasy vie for dominance of her face
>Not only can he feel its hard cock in his mother, but he can see the bulge sliding back and forth with each time the catgirl slams into him
>His mother is begging him not to look at her, and he tries his best not to
>Then a sharp pain forces his eyes open
>The catgirl bit his shoulder
>It was climaxing
>His eyes shot open
>Greeting him was the bliss on his mother's face, belly swelling with cum
>He would never forget that image