Mary limped towards the barn as her cock threatened to rip through her pants. She reached the barn and took a moment to lean against it's door. She panted and whined as her cock throbbed with powerful need, her sweatpants stained with oozing pre cum leaking from her member. She could hardly think through the radiating heat seeping from her horse genitals but she understood one thing. She needed to fuck and soon. But what was she doing? Was she really going to fuck an animal? She pondered this thought and soon found herself asking herself how such a thing could even work. As images of winking mare cunts and throbbing stallion dicks filled her mind she could no longer hold back. Mary felt a painful strain in her pants and realized that her cock was fastly out growing her pants. She frantically rushed to open the barn before her pants ripped as she was still visible from the road. Just as she forced herself into the barn and shut the door behind her, her pants met their match. The painful strain on her cock became to much and she began to thrust her hips as fast as she could in some desperate attempt for relief. Finally her pants burst open to reveal her engorged member springing into the air before firing several geysers of horse seed upwards in a stream across the barn. Mary thrusted and gasped and moaned as she violently humped the air and stroked her meat. As her orgasm dwindled she slid down the door and came to sit on the dirty barn floor. She panted and heaved as her body was drenched in sweat. She felt relieved for a brief second before her balls expanded painfully. All of her spilled seed was replenished in an instant causing her to cry out in pain. Her member rocketed back out at full mast. She needed to fuck. Nothing else could help now. She shakily got to her feet, groaning all the way as her painfully hard cock jutted out into the air. She surveyed her surroundings and quickly realized that, to her horror that this barn housed only cows. No horses in sight. She began to panic that she'd be unable to relieve herself. That was until her nose was hit by a musky scent. Immediately her dick tensed and shot a glob of pre cum onto the ground. She quickly realized that the scent was emanating from the cows. They were reacting to her potent semen. Unable to delay any longer, she stumbled over to one of the cow pens in a lust driven haze and opened it up. Stood in front of her was a beautiful cow. The cow stepped forward, it's udders sloshing around as it went until it stood just in front of Mary. The bovine leaned over and licked Mary's pulsating shaft. Immediately Mary leaned her head back and moaned, thrusting her rod against the cow's head as a rope of cum shot from her tip and streaked across the cows back. Unable to wait any longer, Mary hurries over to a stool in the corner of the pen and brings to the cow's behind. Standing upon the stool she is greeted by a plump set of lips on the cow, already glistening with liquid as well as a puckered hole above. Mary leaned over the cow and rested her chest against it before madly thrusting away at the cow's flank. After a few tries she finally landed home. She's hilted herself completely within the cow. But in which hole?