Rick’s hand clenches at his dress shirt and he continues to pant and heave out clouds of grey mist. His body seems to be producing this mist now from deep inside his chest. Rick looks up to his savage son who is hovering over him with a look of abject horror and lust as the beastly Brendon looks at his new sex partner with curiosity and pride. With every breath Rick tries to expel a force that is swelling inside him but to no avail.
“H-eh, h-eh, h-eh,” he pants, “What did you do to me?” The dumb beast hovering over him only nuzzles his father’s stubble in reply. Rick is helpless to the wave of arousal flowing through his body at his son’s wet nose against his cheek . Shirt buttons fly as the collar of Rick’s shirt pops open to reveal a hairy chest swelling with muscle. As Rick exhales the grey mist flows over his exposed chest causing thick black hairs to sprout in tuff of fur. Rick yelped at the site of his body changing and tries to run away as if leaving the scene would halt the transformation. Brendon pins Rick against the wall again and starts to lick at Rick’s neck with his broad animal-like tongue. Rick shivers at the feeling as he feels his cock pulls erect once more. Rick’s body begins to swell in size as his frame thickens and his muscle bulk up. His shirt sleeves slide up his arms as his biceps bulge larger than his head. His calves and thighs bulk up similarly reducing his kaki pants to shredded shorts. Rick’s body doubles over with muscle and his excited beast son can’t help but lick at each protuberance.
Ricks voice is a deep rumble now, echoing from deep within his barreled chest and through his thickly muscled bull-neck, “Ooooh, ooooh,, You…You…ooooh, oooh, turning me… ooooh, oooh, fucking behemoth!” Rick isn’t only gaining muscle, he was gaining a great deal of fat. The remaining shirt buttons pop out as Rick’s massive gorilla gut expands before Brendon’s eyes. Thickly covered in black hair like a hairy Italian, the colossal gut is firm and round like Rick’s protruding rear. Rick’s belt pulls his bubble but closer to his body, lifting his posterior cleavage high above the dropping waistline of Rick’s tattered briefs and pants.
Brendon takes a liking to Rick’s huge muscular man breasts and his large tits in particular. Rick grunts in pleasure as he becomes a victim of his son’s nipple-sucking desires. Brendon leans over his father’s manly gut and his hands into it in order to get at his father’s delicious tits. With one paw-hand he begins rubbing his father’s hairy gut.
Rick is completely covered in thick black hair and grunting like a gorilla. His once stubbled face is now covered with a thick beard that would make any biker jealous, his once short cropped do is now a wavy mane of black-brown glory. Rick tries to fight further changes but his resistance is slipping. Rick’s form is still vaguely human, although on the extremes of girth and hair. As Rick’s dick presses out from under his massive gut as it swells in size he really begins to feel his humanity slip away. His hands and feet swell in size as they become more ape-like. His thickly-muscled arms grow longer as his back and hip realign to a semi-quadruped existence. His brow thickens as his nose becomes broad and moist. His lower jaw grows heavy as juts forward and two thick lover canines come to rest against the outside of his lower lip. He looks like a tanked-out missing link as he feels the last bit of humanity fade.
And as he feels his former stepson suckle at his nipple, his swollen glands fill with cum, and his behemoth balls churn more the Beast Rick suddenly feels like throwing his two ton weight around and establishing dominance.