Author's Note
A little different from my regular stories, this one was started by a writing prompt and finished in a single day. The part in cursive is the prompt, the rest is original content. Please enjoy, and tell me how you liked it! 
Casts and CBT
--'I need to get control of myself' she thought even as she subconsciously swished her tail side to side to spread her scent. She did her best to calm her wildly thumping heart as she entered into the room containing the main concern for her... predicament. The stallion was an earth pony and had been hurt in a construction accident, injuring all four of his legs and requiring casts. A quick glance saw he was sleeping, something she thanked her lucky star for. She started checking the casts, the rough and bumpy texture on her frog making her shiver with hidden pleasure and making her pussy start to leak. A twitch under the stallion's blanket made her jump slightly in surprise but that was quickly suppressed by awe as the 'tent' started forming in the sheets, growing larger and larger by the second. Her mind clouded by lust she quickly locked the door and carefully crawled into the stallions bed, nearly cumming when her sensitive clit rubbed against his leg cast. With a smirk on her face she carefully removed the covers. 'A quicky won't be to bad... right?'--
Berry Frost backed her plot against Jim Beam’s leg cast again, her rearleg caught between the gypsum cast and his rapidly stiffening cock. Feeling the hard cast around his leg on her marehood, she let out a stiffled gasp and started to gently rub herself up and down in small, short movements. Already aroused by finding a stallion helpless like this, she didn’t take long to reach her climax, her pussy clenching against the cast as she used her foreleg to stiffle hear squeals of ecstasy.
Despite her best efforts to be subtle, Jim Beam was slowly starting to wake up. Berry blushed as he groggily opened his eyes, looking in disbelief at the mare sitting on top of him.
”Are you the new nurse?” he tried to ask, but with the bandages around his muzzle only an unintelligible mumble came out.
”Excuse me?" Berry Frost asked.
”Are you the new nurse?” Jim Beam repeated.
Berry tried hard to interpret what he was trying to say, when she realized that the answer may in fact lie in his body language. ”Oh, you want some too?” she said, leaning back and rubbing her hoof over his stiff cock.
”What?” he asked, still confused from having just woken up.
Berry smiled and nodded, taking his answer for a yes. Carefully standing up, she maneuvered herself between his cast-covered legs, lowering her moist pussy on top of his cock standing between them. She whimpered softly as he slipped inside her, his cock filling her from the inside as her rump touched down snugly between his stiff legs. The stallion below her let out a long, pleasant groan, and she started to move up and down carefully so as not to injure him.
Jim was tense, not only from arousal but from how uncomfortable position the mare had squeezed herself in was. ”Owww... You’re kneeling on my balls!” he groaned, hoping that the mare would move a little. He wished he could move her himself, but with both his forelegs and rear legs in cast he was effectively immobilized.
”Just a minute, I need a while to get used to this.” Berry panted, holding onto his leg as she increased her range of motion. She enjoyed just the feeling of his stiffly cast limbs around her, but the stallion sounded eager for more. She shuffled her position a little, inadvertently trapping his balls even tighter.
Jim Beam tried to protest, but instead the mare took his urgent noises as encouragement to go faster. He screamed inside his bandages as her weight slammed down on his nuts again and again, kneading them tightly between the bed, his pelvis and her leg. With all his legs firmly in casts, he was completely helpless as the mare riding his cock kept squashing his balls again and again. There was nothing he could do but try to cum, so he did his best to just grit his teeth and try to focus on his cock instead of his mercilessly pounded testicles.
Berry was completely lost in ecstasy, her flank caressed from front to back by the three-pronged assault of rough gypsum and hard cock. She wanted to savor the moment, but the urgent moans of the stallion kept her moving, and eventually she reached her second orgasm. Clenching her legs tightly, she held onto his immobilized leg with a loud, orgasmic moan.
With a desperate, high-pitched scream Jim’s cock erupted inside her, just as her rear leg flattened his balls hard. His body spasmed in the mixture of pain and pleasure, still unable to do anything but moan as his abused balls pumped their contents into the mare squeezing them dry. After a few long seconds his squirts died down and the mare finally relaxed her legs, leaving his balls compressed under at least less unbearable pressure.
”Please get off my balls!” he begged the blissfully smiling mare.
”You were great too!” she said in return, standing up to give him a kiss on the forehead. He sighed in utmost relief as her knee finally lifted and his nuts returned to their original shape. Unable to do or say anything, he just let out a relieved groan as the mare petted his head.
”I must go now.” she said softly, climbing off the bed and tugging him in comfortably. ”The visiting hour is over, but Nurse Redheart said you’ll be wearing the casts for at least six weeks. Until then, I'll come to see you every day!” she said with a wink.
Jim Beam tried to scream after her as she blew him a kiss and closed the door behind her, but there was nothing he could do. Staring at the ceiling with nothing but his painfully throbbing balls to keep him company, he let out a deep, resigned sigh. It was going to be a long, hard road to recovery.
