James' milk affects him more.

James could only lie on his back, exhausted and bewildered. What exactly had just happened? Did he actually fuck his step-sister? With one of his teats no less? Men, hell, humans didn't have fucking teats! Thinking himself into a frenzy, James absentmindedly scratched his left ear, then the right. What was even happening to him? And why were his ears so itchy?

"Uh, bro," Lily asked hesitantly, "what's happening to your ears?"

"What do you--FUCK!" James' confusion turned into horror as he felt a fuzzy layer of hair grow on his ears accompanied by faint prickling. Eyes wide, he put his hands over them as if to stop the fur from growing, but it was for naught - even worse, he felt the cartilage shift under his palms, becoming softer and bigger. Much bigger. Sitting up, his teats flopping into his lap, James could feel them push his hands away from his head while his frantic protests grew less and less coherent.

"This isn't happening, shitshitshit, nooo," he babbled while Lily looked on with a mix of curiosity and bewilderment. Tears were welling up in his eyes, but before James could begin crying - right in front of his sister, no less - he felt Lily's hand tugging at his arm.

"What? What's happening? C'mon, show meee!" she whined, trying to pull down his hand to get a look at his head.

"Wha--No! Leave me alone!" James almost shouted as his ears were squished into his temples painfully by hands he didn't dare move.

"But I wanna see~!"

"Stop it!" James barked, trying to wrench his arm out of Lily's grip, but her hand barely budged. When had she gotten so strong?! Or... was he weaker...? Lily seemed to have realized this as well, a mischievous smile on her face. Rising to her knees, she grabbed James' other hand as well and began pushing him backwards. Unbalanced by his beyond melon-sized tits and unable to catch himself on his arms, James fell on his back and Lily immediately straddled his belly which was still bulging slightly from all his milk he had drunk. He could feel Lily's knees sliding under the sides of his boobs, the soft flesh his chest jiggling lazily. The milk still slowly flowing out of his step-sister dripped down his belly in rivulets, some pooling in his belly button.

"Sorry bro, but this is way too juicy and hot," Lily grinned, her weight pinning James to the bed. He didn't understand - he felt so helpless against his step-sister's strength, so why was his pussy twitching madly? His face burned as he looked up at Lily's excited face, eyes wide with arousal and trepidation, completely at her mercy.

"Don't worry, little cow, I'll be gentle," Lily breathed, slowly forcing away his hands from his changing ears. James felt them flop down on the pillow, his fur brushing over the linen. The sensations made him blush even more, tiny tremors of lust running over his body. They were incredibly sensitive, buzzing with lust that rivaled his breasts!

"Aww, they're so cute!" his step-sister squealed, letting go of his right arm and grabbing his soft ear, gently rubbing the soft coat of hair. As she released his arm, James went to cover his ear again, but after Lily's hand made contact with it, all sense of shame or desire to cover himself were washed away by pure bliss.

"Aaaahmmoooo," James moaned, eyes falling half closed, panting with every breath. Lily's gentle fingers robbed him of his remaining strength, head lolling sideways limply.

"Aww, does my little cow like this?" Lily teased, lightly stroking and caressing James' floppy, sensitive ear - her only answer were aroused panting and weak twitching. James could barely think; his step-sister's touch sent waves of indescribable pleasure right into his brain.

"Well, obviously," she answered her own question with mirth in her voice, "But what if I do this?"

Leaning forwards, Lily's body pressed into James' beanbag tits, but the stimulation paled against the sensations overloading his brain when she lifted his ear to her mouth and began to lightly nibble on the rounded tip. Incoherent moaning and mooing was the only noise James could make while Lily gently bit and licked the weakly twitching ear. James felt muscles he didn't even have five minutes ago contract and jerk involuntarily, but Lily sucked his fuzzy ear deeper into her mouth and all his aural spasms did was make her careful ministrations even more stimulating.

But James had two ears, and Lily still had one free hand. He felt his step-sister's hands brush some stray hairs out of his forehead and then wrap around his other ear, languidly stroking it, careful to always go with the fur. James' whole body trembled with lust, his pussy gaping and quivering expectantly, begging to be filled by something, anything. However, Lily kept her attention focused on James' incredibly sensitive ears, never faltering in her gentle teasing and stroking.

Her continued labors barely left James time to breathe, gasping moos rising from his slack mouth, his fingers weakly scrabbling over the soaked linen of his bed. The sensations from his ears were intensifying rapidly now, and he could feel his clit slipping out of its hood, twitching in the warm air of his room, girlcum gushing onto his bed.

"Moo-moo-moo-MOOOO!" As James' lust hit a crescendo, so did his mooing. Arching his back, he convulsed under his sister, her weight pinning him in place. Still, James' legs kicked and shook wildly, juices splashing onto his thighs, his teats bouncing around and slapping into his legs. Lily kept nibbling and sucking his fuzzy ear, prolonging his orgasm until James was almost going insane from bliss, unable to form a coherent thought. His breaths came in short, moaning gasps, and James felt like he was about to faint, when Lily finally let up.

She sat back up, looking down at her step-brother, and waited for him to regather his faculties. As James' climax finally ebbed, his breathing evened out and the spasmodic twitching of his body subsided. His ability to think returned slowly, but steadily, but his body still felt weak and, not to forget, oh so satisfied. Turning his head to look at his tormentress, he saw a huge grin plastered on Lily's face.

"Oooh, my little cow has sensitive eeaars~!"

"D-don't say that, it's embarassing," James answered, averting his eyes, but his step-sister stroked his left ear lightly, making him moan and turn his head back to face her.

"I love you, little cow," she said once he was gazing up at her again and leaned forwards to kiss his nose gently.