Zack's new rubber fox-cock throbs in need, flopping over his thighs. He reaches his hands down to caress the slick cock, only to find his fingers have already started to blunt and reform into mitt-like paw-pads. The rubbery cock grazed against the the soft new-paws, both unable to press down onto the other with enough force to provide him any sort of sexual relief.
"uuunh, Alex can you help me? I can't jack off anymore..." The transforming boy whined as his lust grew from the gentle friction, unable to get true pleasure.
The question snaps Alex back to reality, and he grins lewdly, leering down at the his former-brother. "Sex-toys don't need to get off, bro~ You're here for my pleasure."
The dominant tone in Alex's voice made Zack shiver, his cock throbbing against his paw-mitts. The sex-toy let out a surprised squeak, as Alex lifted him up and flipped him onto his stomach - a woosh of air forced out as his big cream-colored belly smacks the bedding. Zack's rubber cock and mitts compressed under his air-filled belly.
Zack's ass has yet to transform, his cute boy-butt pert below his wide, orange "furred" love-handles. Alex licks his lips at the sight, the cream-colored rubber already starting to creep over the top of his buttocks. Alex ran his tongue down the wide, soft, air-filled back of his new sex-toy, to the base of his brother's spine, where a thick rubber-tail nub was protruding.
He sucks the tail-nub between his lips, making Zack gasp in pleasure. "Uuunh! Oh god, w-wWhaat are y-you doing back there, Alex?" Air gets over Alex's tongue, pulled into the quivering tail, as it expanded larger into his mouth. He lets the tail out, slick with his spit. It wags in front of his face, becoming less like a nub, and more like a cartoon-rendering of a puff fox-tail, the base growing to part Zack's ass-cheeks.
Alex pulls them apart to expose his older brothers arsehole, manhandling and gripping those cheeks. He leans in, getting a breath of Zack's ass-sweat. "Come now, little sex toy, open up for your master~"
The fine, curly hairs on his brother's taint seem to melt under his tongue, as Alex kisses and licks over his taint. The cream -color covering his ass-cheeks as the balloon around his head, becoming soft and pillowy as Zack's toned muscles are replaced with gas and rubber. The hot rubber became slick with a musky, sweat like covering.
Moaning in the sweaty, hot ass-flesh, Alex locked his lips with his brothers ass-hole. He could feel the tight pucker dimple and flex, as Zack humped back. The taste of rubber replacing the earthy taste of Zack's hole, as his ass-lips puffed out to become a wide rubber seal. Alex's tongue probing deep into his brother's ass as it became a long, internal plastic fuck-sleeve.
Zack drool, pressing his face into the bed, the pleasure was mind-bending. He felt another strange pressure, opening his eyes to see...