"Come on sis, just do it with me," Alice pleaded as she masturbated.
"Ugh no what's wrong with you? No Nut November is totally stupid," said her half-sister Sara as she too stroked her own dick. The two sisters sat across from each other virtually, each one facing the phone propped up at the end of their respective beds. Though they video called often, nothing sexual had occured between the two in quite a while, not since Sara had made things official with her girlfriend. Both had felt uncomfortable continuing their sisterly antics while one was in a monogamous relationship. That had changed recently when Sara got dumped, and the two quickly relapsed to their old ways.
"It's not stupid. You just can't do it because you're a worthless one-pump chump," Alice huffed angrily. She didn't intend to be so aggressive, yet she was.
"Fuck you, I am not." Several empty seconds went by. "The doctor said it's not that rare. He said it's my anxiety," Sara finally replied sheepishly. Despite being the younger sister, Sara far outshined both her sister and mother in the cock department. The three were all futas, but while her sister and mother were only carriers for the hyper gene, Sara's was activated. In addition to this, there had been a complication in her conceivement. She had been conceived by a one night stand with a well endowed futa, but her mother's pharmacy had mixed up her birth control with a prescription for an experimental, high grade fertility drug that contained trace samples of horse semen. So not only was she a hyper futa, but she had an equine cock. The thick, veiny shaft was white like the rest of her. Once she got hard, a pink, flat, ridged tip emerged from an equally veiny equine sheath. At full mast her bitchbreaker was two feet long, reaching up between her perky C cups and resting right below her collar bone. Two grapefruit-sized balls rested right beneath them in a tight sack. She had always been self conscious about it, having been bullied on multiple occasions for its unusual appearance. Though she had engaged in foreplay many times before (mostly with her sister), she had yet to lose her virginity. Her sister had been her only steady sexual partner, but penetration was one boundary the two sisters refused to cross. As a result, Sara had neither been penetrated nor ever penetrated someone. Her lack of experience and inability to fit comfortably in clothing (or someone's orifice) resulted in her being very quick to cum, which in turn also scared off many potential partners. Thanks to her excessive size, only girls looking to get their guts rearranged ever approached her. Most others had been scared off by rumors of her massive horsecock. Upon witnessing her abysmal stamina, their disappointment coupled with a fear of an accidental pregnancy usually meant Sara never got a call back afterwards.
"Sorry sis. I just think you should do it with me, even if I'm away at college. It could be fun, even if you totally lose. Let's put a wager on it."
"You're so annoying. Like what kind of wager?"
"Loser has to be the winner's slave for an entire month when I come home for winter break," Alice dared with a sly grin. Unlike her sister, she was merely a carrier for the hyper gene, like their mother. Her cock was only 10 inches, one above the average for futas. Her balls were above average, being the size of tennis balls, probably thanks to her unactivated hyper gene. She wasn't quite sure how big her mom was, but the three had once had too much wine during a family movie night and jerked off in front of each other after getting aroused by a cheesy sex scene. Though their mom acted like it never happened, Alice was sure her mom was a couple inches smaller than her. The rest of Alice's body resembled her mother's, albeit slightly less thick and milf-like. She chalked this up to the fact that their mom had already had two kids. Though their mom was much thicker, both Alice and Sara's bodies were much tighter and leaner. Alice sported a firm pair of modest D cups that sagged just a tiny bit on account of her constantly going out without a bra. She loved the effect that it had on men and futas, especially given that she preferred to wear tight, usually cropped t-shirts. Something about the way they couldn't take their eyes off of her boobs innate bounciness or how her hard nipples always poked through was addictive. Her ass was nothing to scoff at either. Thick and plump with just a hint of cellulite to give it some real bounce. She sported the perfect hourglass figure.
