It was a quiet summer night in the American city of Danville. The moon casted a soft gleam over the quiet suburban landscape. The light of yellowish street-lamps dimly illuminated the sidewalks, contrasting the darkness that enveloped the houses lining the street.
In one of these quiet structures, the Flynn-Fletchers, the notable family whose children created zany and inventions of truly epic proportions, were sleeping - or so one thought they were. In the darkness of the child's bedroom, Phineas lay silently awake on his boat shaped mattress. The boy was restless, his triangular-head and thin-body struggling to stay still.
Although the intelligent boy would have loved to move from his quiet spot on his soft bed, he couldn't - because if he did he would never find out what was truly going on within the darkness of his own domain. See, the boy woke up to a distinct plinking and flickering at the edge of his bed. The sound lurked in the shadows, going quiet at first and he gently readjusted himself when in his bed. After noticing this phenomena, the genius boy decided to stay still and wait for the sound to make itself present in his room again - which it did! This time the plinkering noise was interchangeably mixed with the sound of someone speaking, although too quiet to understand what mysterious information was being conveyed in the darkness.
"Wow!" Phineas thought quietly, "A new phenomenon in my own bedroom that's mysterious and scary, I need to find out what it is - and very carefully so genius-lessly!"
After lying quietly under his soft covers for a minute or two, pinpointing the exact location of the sound with his amazing hearing skills (and computer sense enhancing implant in his brain that Ferb had insisted for him to incorporate to get into the whole bionics craze), he was ready. Without any hesitation, Phineas sprung from his bed, and landed on the floor at the base of his mattress to find his pet platypus, Perry, sitting in an upright position and watching something on a smartwatch on his arm.
At first Perry didn't even notice Phineas' presence, so engrossed in the adult furry film flashing against his own retinas - he only realized when he heard the light gasping murmur make its way into his eardrums.
"Perry?.." the boy let out, almost barely audible, yet audible enough to make Perry's heart sink. He looked his owner right in the eyes and let out a nervous chatter, his embarrassed and shocked grin sending a mixed signal to his owner.
"You, you can understand me?" Phineas whispered yet again in the darkness of the room, being quiet as not to disturb Ferb with such a shocking and life-changing affirmation in the current status of their currently animated reality. The semi-aquatic egg laying mammal of action simply nodded in response.
"Why have you acted like a fucking retard then, is it to hide us from something, or is it to continue doing whatever your doing on the watch? Are you using us" Phineas spat dryly at his own pet. Before he could apologize the platypus let out a sad and apologetic murmur, before leaning the screen of the smartwatch up to him.
Phineas could barely even speak when he realized that Perry had been watching an adult film, but not just any adult film - an animated one of him and his own pet platypus. Even though sex was new to the teenager, he was completely aware of what was going on in this sexy film. The drawings and lines conveyed sexual intercourse, deep and rutting, with the platypus deep inside the boy's tight rectum.
Phineas blinked before looking back to his platypus friend, a blush clearly visible through the teal fur. "So not only are you a sentient trans-species being, but also you are in love with your own owner, and want to sex or mate me?" Phineas whispered, in an actually completely shocked tone.
Perry nodded and kind of smiled and frowned at the same time. Phineas could only feel himself grown more intrigued with this transp species mating proposition as he felt th efluish of the blushy redness enter his cheeks. He had always found mammals attractive, but his own platypus even more sexually fulfilling as puberty entered his bloodstream. The testosterone pointed him to finding the platypus' sleek form and beak/beaver tail combination sexually compelling - as well as that double headed penis. It seemed like something to die for, but he didn't know if it would even be ok to fuck his pet.
But now it was, and Phineas - coming to a shock to Perry, offered himself to his pet as a breeding toy. Perry obliged immediately, tail wagging, and with a softness, took his owner's geometric head in his arms and worked himself into a french kiss, his beak weaving together with the boy's soft lips. Phineas moaned as Perry slowly worked his tongue into the soft entrance, his tongue becoming fully woven into the humanic one opposite to his own. Saliva mixed with muscle in a display of love of sexiful proportions. It was truly euphoric - the beauty of the man and the beast fucking and sucking and fucking and sucking. It was though Jesus and Satan were conducting sodomy, the beauty of it all - wow! It was as strange yet natural as any other pairing of sexually deviants that had come before.
Not before long, the kiss ended, and yet, the foreplay was only beginning. Perry quietly pushed the red-haired boy against the soft frame of the mattress, pinning the boy's
arms up with one paw while beginning to unzip the boy's jeans with the other. Phineas moaned as his length began to inch up in length, becoming visible within his pristine tighty whities.
The soft paws played and teased at the bulge, with a small amount of pre staining the middle section of the pants. Phineas let out little soft moans in the darkness of the room, Ferb's snoring still present thankfully. When Perry thought it was enough, he finally released the human girth from its concealment, revealing the four inch penis in the slight ambience of the humid room.
The platypus chattered excessively when his sweety, succulent treat was revealed, and all at once his own length began to emerge from his own sheath, pink and veiny. The freckled boy and the platypus moaned in unison as Perry's paw did all of the work, cupping both of their lengths in a fluffy yet tight passage which became the ultimate stimulator. Each hand thrust sent shivers and euphoria down their tight spines. They slightly moaned from the tabooness of the sexual act they were committing, yet their risk and pleasure only amplified their act. It was an act of historical proportions, the first sentient platypus fucking a young lad - it would happen. Amazingly and beautifully. But first the lengths needed to be engorged!
Their precum that leaked out of their heads lubricated themselves beautifully, and both of them gained satisfaction as they continued grinding their cocks against one another - the sweatiness and bulginingess cementing that sticky semeny pleasure yet to come. It continued for minutes, the chattering and moaning mixing into a symphony of the night, unlike that fucking video game, and actual song - a beautiful ballad symphony thingy.
Once they were ready - it was time. It was really time to see what would happen if sexual intercourse occurred between them. Perry finally released his pawful grasp from their lengths, and quickly inserted his fifteen inch, dual headed penis into the boy's pucker. Phineas cried out into the air, before Perry bit his neck to silence the boy so Ferb would not call the police on them. Blood fell from both the boy's wound and his ass, his virgin walls not anticipating the sheer girth of the platypi cock.
Perry thrusted nice and deep, grunting and growling as his penis was stimulated from all sides from the rectal walls. The meatiness felt so fucking good, and he was happy to pleasuring his new husband that would father the new generation of platypus secret agents - or so he thought in that very current and living moment. Only if he knew what would happen soon!
Anyway, as the thrusting continued, Perry licked Phineas' wound clean, and then proceeded to take Phineas' length in his one empty paw, as the other was still holding the boy pinned against the mattress, and the digits slowly inched toward the peehole. Phineas knew what was going to happen - he had seen it in various documentaries on platypuses in captivity - he knew they had gotten kinky in terms of pleasurable activities, and he knew this was it. He would finally become the perfect platypus human sex toy.
Perry entered his paw directly into Phineas' urethra, thrusting his entire first in and out, causing semen and blood to coat the paw as he contniued to buttfuck and peefuck the boy. You couldn't even fucking believe how fast Perry was fucking and thrusting in terms of the comparison of his size compared to his speed. He was a buttfucking and boyfucking machine. It was truly amazing, and it is sad that their is no animated adaption of this tale, because if there was it would be the hottest shit ever fucking scene with human retina eyeballs.
Anyway as the sex contninue, one new the orgasm, the ultimate pleasure would come - and conception of the platyplus children would be soon! With the thrusts getting faster and faster, the precum spilling out almost volumaterically, and the stickiness adding to the deep slapping ahd thrusting nosies of the cock and ass fucking - they would soon come.
"Perry fuck! Oh god it feels so bad and good!" Phineas moaned as Perry chattered in orgasmic agreement. After thrusting good and deep another twenty five times, they both came, but not in the way one thinks one would. It was the tragic orgasm, as some call it. Perry bottomed out inside the boy, twenty five gallons of platypus spunk entering his rectum and penetrating his g-spot. It was amazing, yet said, because the sheer force of the orgasm split his rectum and his internal organs, causing the boy to literally explode from the inside out.
The penis that belonged to Phineas was now attached to Perry's paw, the only thing left since his fist was keeping in-tact within the urethral walls. Hues of pink and orange blanketed the floor as Phineas' lifeless head and spine lay motionless, eyes agape with tears still spilling out from the pain pleasure orgasm. Intestines were strewn across the room, and semen, blood, bile, and shit and fecal matter blanked and stained Perry's fur, which he tasted the fecal matter cum blood treat before seeing what his mating had truly done.
Realizing what he had done, Perry screamed in agony. What horror! What great death was present in front of him. He had murdered his lover accidently, but still! One could not deal with such heartache without removing the consciousness from oneself, unless wanting to live with such heartache for a lifetime. Ferb quickly awoke, his green hair fluttering in the darkness of the room. Before Ferb could realize what was going on, Perry activated the self destruct button on his smartwatch and the Flynn-Fletcher household was immediately destroyed, blown up in an intense fireball in the darkness of the summer night. What was known now was one - that interspecies mating was very risky indeed, and that Major Monogram had a lot of work to do covering this shit up. Such beauty in the pain though, such pain beauty indeed!