Button's mom was drooling of excitement, presenting her hindquarters to her son. Button, less confused than the first time, but still pretty damn clueless, took a deep breath, and approached his left forehoof from the slit. The first touch sent a powerful shiver up his mom's spine.
He kept on pushing his hoof against the hole, gently parting the lips. She started moaning, tensing her massive butt cheeks around his arm. Her crotch felt burning hot. Advancing with difficulty, he finally reached his previous checkpoint, and stopped, half his leg inside his mother.
The moaning stopped, replaced by a long blissful sigh, with an hint of disappointment. But kids can read through emotions quite easily, and the hint hurt button a lot more than her mother could have imagined.
A devilish grin appeared on his face, as he finally discovered the right punishment for his ungrateful mother. He took another deep breath, and slammed his whole leg inside. The hoof hit the cervix with a thump.
Button's mom cried out, and bit the pillow, her inner walls tensed with such strength against his arm he thought he would never be able move it again. But she slowly relaxed, allowing him to move again. He began thrusting, hammering her marehood with an untiring endurance.
She had closed her eyes, concentrating on the sensation so deep inside her, on the clear belly bulge, leaving her so empty when it would go, and hammering her cervix each time he trusted. A puddle of milk and juices had formed in the sheets. She was panting heavily.
Button began to feel tired. His position wasn't particularly comfortable, and those slow thrusts just weren't his style. He kept on going though, gazing at his mother's private parts, wondering what was each thing's purpose.
He played a while with her clitoris, before shifting his attention on her massive overfilled tits, squeezing them with his right foreleg. They were just massive, at least the size of his head. He wondered if such enormous boobs would hurt, or at least give you some back pain.
He wanted to suckle, but what he would recognize later as a doggy-style position just doesn't allow for that kind of play. So he kept playing with her nipples, each skeeze making his mother's parts tense around his leg.
He started to examine her butthole, stretching and rubbing it, testing what kind of moves made her tense her buttocks. He never really looked at her crotch before, not that he never had the opportunity, she always walked her tail raised straight up, but he was surprised by how pretty and cute it actually was. He felt a sudden urge to lick it.
-"No... Bu-Button... tha-that's dirty..." moaned his mother, stuttering.
-"Tashte pretty clean!"
She wanted to answer, but only squeed: Button had just shoved his muzzle inside her.
She was now drooling on the pillows, her pupils mindlessly gazing at the roof, her leg shaking and giving beneath her, each roll of the tongue making her alternatively tensed and emptied of any strength.
She dropped on her left side, but the spinning motion of the arm inside her was so powerfully orgasmic her right leg just started kicking in the air.
Button jumped on the occasion, and started sucking avidly on her sensitive nipples, but with all the milk on the ground, they had lost a lot of their output. He decided, in all logic, to press his right and milky forehoof against her tailhole.
She opened wide shocked eyes, but it was too late. Her gaze only met her son's wide grin. Her ring gave up, and once again, Button shoved his whole arm inside his mother. And again. And again. He was pushing both legs alternatively inside, hitting her G-spot from each side, at a tremendous frequency. She was shaking like a rabbit having a stroke, each hit sending her legs flying into the air.
Buttons just loved the sudden power he gained over his mother, but decided to give up the nice view to shove his head in her breast.
He started mashing. Button's mom felt like she had two electrical hammers that were, well, hammering, inside her. Hammers that were also vibrators. And basses. In her transcended state of mind, she started seeing patterns: her son was trying to use combo attacks.
Button was now pushing with his whole body, each thumps resonating through his bones. He was beating the final boss.
The time seamed to slow down for the nurse. Her eyes were opened wide, but her mind just wasn't there. She felt both his hooves pulling out, leaving her so empty, and then breaking back in, with all the colt's strength.
Button pulled out, and switched hooves at the last moment. They opened her milk and juice lubed holes with ease. She felt the hooves go through her tight anus and warm slit at the same time. She felt the articulations stretch them a bit more. She felt the legs brushing against her G-spot. She felt the biceps stretch them even further. She felt the hoof hitting against her cervix, as button's head dived between her love pillows.
She came. Her walls compressed her son's legs with the strength of shark jaws under steroids, as milk and sugary liquid sprayed across the room, pussy and nipples shivering. Waves of electricity covered her whole body, as her back tensed, slightly arching over the bed.
When the waves stopped, she was just a mindless puppet, her fur frizzy and her skin covered with goosebumps, her mane a mess and her bottom aching, but she couldn't ever care less.
Buttons, still both legs stuck in her holes, slowly closed his eyes, and started snoring on the most perfect pillows that ever existed. His mind drifted off to sleep. He didn't hear the knob clicking and turning slowly.
