A cow and her bull get used to their new life.

When James woke, dawn had long since broken and bright daylight was flooding the room. He and his sister were still spooning, her left arm draped over him, as if they hadn't moved at all during the night. James' head rested on a soft arm that he belatedly realized was his, and he could feel his new horns press into the hardwood. Despite the hard floor under him, James wasn't uncomfortable - his whole body had plumped up considerably, far from the skinny twig he'd been, and his cushiony ass and hips as well as his soft upper arms helped protect him against the hardwood. James could feel his udder resting on the floor, it having filled with milk while he slept, but the sensitive mound was far from full and James figured he'd have at least a few hours before he had to be milked. His womb, however, was still sloshing with Lily's cum, bulging out as if James was six months pregnant.

James was almost disappointed when he realized that while they slept, his step-sister's monstrous cock had fully slid out of him. The way it had made him feel yesterday... the cow morph doubted he'd be able to go even one day without feeling it somewhere in or at least on his body. Speaking of feeling and bodies: Lily's body felt enormous against his back, as did her left arm over his waist. But while there was softness on his upper back, the rest of her body felt tough and muscular. Yesterday night, James had been much too horny to notice, but it seemed much more about his sister had changed than only her genitals. He could barely wait until he'd see Lily in her full, transformed glory.

But right now, he felt content just being hugged by her strong arm and listening to her even breaths. He snuggled back into her, his plush bottom grinding into her crotch - where, to his surprise, he only felt her prodigious balls and a weird, puffy slit. No flaccid cock anywhere to be found. It took James a while until he remembered enough from his biology classes to realize that it had to have retreated into Lily's sheath. James was thoroughly impressed that she could effectively make so big a cock disappear, smiling when he thought how much fun it would be to coax it out of hiding.

"Mmmh," his sister groaned as she woke up, pulling James closer to her, nuzzling his neck and breathing in his smell. "Good morning, little cow..."

Her voice had become quite a bit deeper, the rich, rumbling timbre still undeniably feminine, but her former bubbly, high-pitched voice was gone. James could feel it vibrate through him, sighing at the sensation.

"Good morning, Lily," James replied softly, his own voice now higher than his step-sister's.

"Sleep well?"

"Mhmm..." the cow morph answered, stretching a bit.

"Me too," Lily answered, sucking lightly on her step-brother's neck, sending little shivers of lust down his body.

"Listen, little cow," she continued, slowly licking the sensitive flesh, causing James' nipples and teats to harden and drool milk, "you need a new name. I can't keep calling you 'James' with these, and especially your tight. Little. Pussy."

Squeezing James' dripping left tit with one hand when she said 'these', Lily made a warm, fuzzy feeling spread inside him, especially with the way she stressed the fact he now had a pussy between his legs - James could hardly wait to have it filled again, service his bull until Lily's balls pumped him full of hot spunk again. He'd do anything for her. Changing his name was a small price to pay to be allowed to worship a cock as magnificent as his step-sister's. Feeling his pussy moisten, James began panting as Lily lightly licked and nibbled on his sensitive ears.

"What should I call you, little cow?" Lily mused, her breath tickling the soft fur on James' ear.