Knotting Her Sister’s Horse Cock – Animal Dickgirl Twins Book 1

Book Summary

Sexy twins Cindy and Hannah were born with animal cocks after their mother got pregnant from wandering into a barn, while drunk, 18 years ago. When Hannah tries to cheer up Cindy one day, they inadvertently cause the horse-cocked twin to grow big and hard. While they try to remedy the situation, Hannah's mind runs wild and shocks Cindy with a dirty idea. Will their mother find them stuck together?

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“AHH” Yelling in rage, Cindy grabbed onto her sister and tackled her back onto the bed. She rested right on top of her, allowing her hot, fat balls to caress her sister’s. “If you really want to know, I’ll show you!”

Hannah never could have expected her sister to react in such a way. She was just having a bit of sisterly fun. Now she was stuck on her back with an angry girl on top of her. Not only that, but her sister’s hips were gyrating, causing their balls to rub together.

“Woah girl, I was just kidding! You don’t have to show me if you-” But when she began feeling something hot pressing onto her lower belly, she lifted her head to look down there.

Cindy’s horse dick had awoken, slowly emerging from her sheath. Hannah watched as it slowly slid up her belly like a snake, slipping underneath her shirt. She couldn’t speak, wondering if she should be feeling afraid at all. Her own dick didn’t want to miss out on the fun, however, swelling out from her sheath. It got sandwiched between her belly and her sister’s monstrous cock, causing it to throb. The horse cock grew without end, making it swell past her belly button in only seconds. Meeting with her bra, it wedged itself right between her breasts, resting atop her heavily beating heart. Hannah watched it emerge from her cleavage, moving dangerously close to her lips. Before she would be forced to give it a kiss, it finally halted.

“Wow...” She said, gazing deeply into the leaking opening of her sister’s cock. “It’s so hot, and heavy...”

Finally calming down, Cindy realized what she had just done. Quickly sliding backwards and pulling her cock free, she sat at the foot of her bed feeling ashamed. Her cock stayed hard, towering between her thighs as it throbbed immensely. Knowing her sister was feeling bad again, Hannah joined her at the foot of the bed.

“Everything’s okay sis. You didn’t hurt me.” Hannah softly said, wrapping an arm around Cindy once more. She couldn’t help but continue to gaze at the mighty organ, however. Her own dick was also out of its sheath, but it was only halfway rigid and rested on her thigh.

“I know.” Cindy sighed. “I just got a little carried away. And now...” She wrapped a hand around her cock, pushing it away some. “ I have to deal with this thing.”

“Won’t it go soft?” Hannah asked.

“It should, but I always have to relieve myself if I want it done quick.” Cindy stated.

“If you don’t mind… I’ll even help you with that.” Reaching out with a hand of her own, she gently grasped the meaty shaft just belly Cindy’s fingers. It was incredibly hot and hard, throbbing madly.

“Hannah!” Cindy yelled. Her cock seemed to throb harder in response to the sisterly touch. “You shouldn’t be touching me… like this.”

“I know. But nothing bad can happen.” Hannah said, tightening her grip. “It’s not like we can get each other pregnant or anything.”

Cindy snickered. “You never know. If a dog AND a horse could knock mom up, who knows what else is possible...”

The horse cocked girl gave in, relaxing as her sister explored her shaft. Hannah used both hands to feel every inch of the tower of meat, getting acquainted with it. Not wanting them to feel missed out, she slid a hand all the way down and began massaging her sister’s giant balls.

“Careful, those things are sensitive!” Cindy warned.

“Don’t worry, I know how to be gentle. Unlike someone I know.” Hannah smirked.

Both dark orbs were smooth and heavy, filled to the brim with churning cum. Cindy’s breathing picked up as she watched her sister tend to her organs. She had yet to be stroked, but pre cum still managed to start leaking steadily from her tip. Spotting her sister’s canine cock just laying there to the side, she decided to grasp it.

Hannah about jumped out of her seat. “You might be sensitive, but mine practically hurts if I try to touch it!” She yelped, pulling Cindy’s hand away.

“Sorry. It just looked so… enticing.” Cindy admitted.

Finished with examining her sister, Hannah went to work. She held onto the horse cock with one hand, while keeping the other on the fat balls below. Going slow, she began working everything tenderly. Cindy had to bite her lip to stifle a moan, not wanting to make it seem like she was enjoying everything.

“This thing is definitely going to make a mess, so someone is gonna have to put their mouth to use.” Hannah stated. “And since I haven’t had breakfast yet...”

Rather than stop her, Cindy watched with wide eyes when her cock was pulled towards her sister’s mouth. She about jumped from her seat as well when soft, smooth lips met with the sensitive head of her dick. Instead of just holding it there, Hannah actually licked and sucked on it a bit. And when she began probing deeper and deeper into the tight opening with her tongue, Cindy had to stop her.

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