That hot summer day, Max's class had gone on a field trip to the local zoo. An unruly group of thirty eighteen-year-olds were eagerly moving around the zoo's facilities. Fortunately, the professor had allowed her students to visit the cages of their choice on the condition that they meet at the center of the zoo at the appointed time.

Max, the young cougar, had decided to visit the lion cage. Ancient and magnificent beasts that looked nothing like the lions the little feline knew. Majestic manes, paws that could easily crush a head, and a pair of balls that seemed to weigh the same as the teenager's entire body.

The big lion approached a young female, who was lying on the ground resting, positioned himself behind her and began to mount her, roaring and swinging his huge testicles as he penetrated the future mother of his cubs.

"That's it, show that bitch who's the leader!" shouted a teenage boy a few feet away from Max.

The cougar turned his gaze toward the source of the voice, which was familiar to him, and could see a pair of tall anthropomorphic lions, about his own age, who looked identical. They were the twins, Abu and Bakhit, celebrating their four-legged ancestor's demonstration of power.

Max blushed and squeezed his legs together to try to appease that delicious tingling he was feeling in his crotch and anus. The sight in front of the boy made him imagine in the flesh what the female behind bars was experiencing.

Bakhit noticed the presence of the cougar, smiled and whispered something in his brother's ear, who immediately averted his gaze to the small feline, licked his lips and smiled.

A huge hand descended on Max's shoulder, who almost jumped with fright, "Hello, little Max, isn't the lion fucking that bitch hard?" whispered Abu in the cougar's ear.

"It seems that for our ancestors the rules are the same, females get fucked, right?" asked Bakhit, grabbing and squeezing the little feline's butt.

"Y-Yes..." mumbled Max with his face completely flushed and leaning back his ass so he could feel more of the contact with the other teen's hand.

Max knew the twins very well, after the sexual awakening he'd had last spring with his cousin, an awkward situation in the school locker room had led to a whole weekend at the lions' house, who took very good advantage of the cougar's little hole to empty their testicles repeatedly. After those couple of days with the twins, it took Max a week to get the smell of lion cum out of his fur, about the same amount of time would have taken to close up his used anus if the cougar hadn't agreed to lift his tail every time one or both lions invited him to some secluded spot to penetrate him again.

"What do you say we go to the baths and imitate the ferals?" asked Abu, reaching under the cougar's t-shirt and stroking his stomach.

"I don't know..." muttered Max.

"That's a yes! Come on quick, my balls are about to explode," said Bakhit, grabbed the little feline by the wrist and the three teens headed towards the public toilets.

Despite a couple of marks, insults, and phone numbers, the restroom was very clean, scented and, the best of all, empty. The three young men slipped into one of the stalls and closed the door.

The twins hurried to pull down their pants, just enough to allow their penises and balls to breathe. Max unbuckled his belt and pulled his pants and underwear down to his knees, rested both hands just above the toilet bag and lifted his tail.

Bakhit, who already had his thick feline strawberry out of its sheath, positioned himself behind the cougar, grabbed one of the teen's buttocks with his hand and spread it, exposing that pink, familiar and rather used anus. The lion launched an accurate spit at his female's hole and, without waiting a second longer, rammed it, burying his entire member in Max's bowels.

The young cougar let out a moan as he felt that familiar sting of the first penetration of the day, the feline barbs and the thickness of the twins' manhood were a pleasurable experience that the teenager had learned to enjoy and make part of his routine.

Meanwhile, Abu had been masturbating leaning against one of the cubicle walls, enjoying the show his brother and his classmate were giving him.

Bakhit had slipped both hands between the cougar's legs from the front, as he had seen canines do in the porn movies he secretly watched with his brother, and held him tightly as he wiggled his hips desperately against the other boy's delicious ass.

The other lion got tired of waiting and came up with a dirty idea. As his brother continued to ram his female, he grabbed Bakhit's pants from behind and yanked them down, causing the other lion to open his eyes wide, straighten his back and perk up his ears as he felt his ass exposed. When Bakhit felt his brother's wet penis touch his buttocks, the teenager stopped his thrusts, looked back and growled baring his fangs, "Don't you dare, Abu, or I'll knock your teeth out," the lion growled.

Abu swallowed saliva and smiled, stroking his brother's hips without daring to bring his penis closer again, "Come on, Bakhit, let me do it just this time... I promise I'll be careful," the boy pleaded, lowering his ears.

"Abu, get out of there immediately or when I'm done beating you even our mother won't recognize you," growled the lion again, still latched onto the cougar's backside.

"Please, brother, I can't wait any longer! At least let me masturbate behind you," moaned Abu.

Bakhit thought for a moment, sighed and nodded his head, "Okay...but don't you dare touch my ass with your penis, I'm not a faggot," the lion replied and resumed ramming the cougar.

The other lion stifled a moan of delight and settled behind his twin, grabbed his penis, pointed it at his brother and began to masturbate to the sensual image of the other lion's ass and balls.

Max took advantage of the brief pause to catch his breath and to bring a hand between his legs, grab his penis and masturbate it but immediately the lion grabbed his hand and brought it back against the wall and resumed the rhythm of his thrusts.

"An obedient female does not touch herself when her male is mounting her," Bakhit whispered in a deep voice into the cougar's ear, causing the young feline to nod and shiver at the same time.

The cougar contracted his stomach with each thrust, trying to keep up with the big cat behind him, the barbs along the lion's penis gently scraped the walls of his gut, and every time the two teenager's hips came together completely a loud splashing sound produced by saliva and pre-cum could be heard.

"Don't worry, kitten, I'm almost done with you," the lion said, speeding up his thrusts.

Bakhit looked back again, without slowing his pace, to find the image of his twin brother masturbating with his eyes closed very close to his ass, then slapped him to get his attention and ordered him: "You, faggot, since you like my ass so much, kneel down and lick it until I'm done with this slut," the lion growled.

"What? I'm not going to..." 

"Abu! On your knees!" growled Bakhit.

A quick shudder ran down the back of the spectating lion, he released his penis, knelt swiftly on the floor of the public restroom, and plunged mouth into his brother's ass, carefully licking the soft skin with his rough tongue, not pushing it past the other lion's sphincter for fear of retaliation.

Bakhit lifted his muzzle upward and let out a deep sigh. The familiar anus of his ever-willing female Max and his brother's quivering tongue made him feel powerful, in control of everything, and that generated a pleasure that shot straight to his cock, signaling to him that the time to mark his female had come.

Max's jaw quivered every time the other teen hit his prostate. Suddenly, the cougar was held tightly by his chest and pulled backward until his back collided with the lion's t-shirt. A powerful jaw clamped down on the submissive feline's shoulder, who gave a long moan and his legs trembled as he felt Bakhit's penis pulsing inside him, spurting powerful jets of semen that quickly heated and moistened the teen's insides.

The dominant lion's heart was pounding as he finished depositing all his juice inside his female. The powerful male grunted, keeping a firm hold on the cougar, his teeth lightly sinking into the other boy's skin. His brother's tongue, still obediently licking his anus, stopped when Bakhit gave him a sharp pigtail on the head indicating to remove himself.

Abu pulled back, leaning back on his knees as he masturbated swiftly. The teen gasped, his muzzle completely soaked, tongue hanging out, and still breathing in the smell of his brother's ass.

"Squeeze those buttocks hard, I don't want you staining my pants," Bakhit ordered, releasing the submissive feline and pulling away from him.

The huge, dominant lion grabbed his now flaccid penis and wiped the sperm layer on Max's back. Then he pulled up his pants and slapped his brother's shoulder, "Fuck that ass hard, Abu, I left it pretty wet for you," he said before walking away.

Abu closed the cubicle door again and stared at the cougar's reddened, abused ass. The teenager swallowed spit and knelt again, now behind the ass where his brother had just flooded his abundant seed.

"Max...don't say any of this to my brother, please," the lion whimpered.

The cougar leaned his hands against the wall again, trying to relax to be penetrated again, "Don't say anything to Bakhit about what?" the boy asked quizzically.

Abu didn't answer, but Max almost jumped as he felt the lion's rough, warm tongue licking his anus. The young cougar relaxed his buttocks, allowing the other teen's tongue to penetrate him. The lion plunged as far as he could his muzzle into the other feline's asshole and licked until he began to feel his brother's semen dripping from inside Max into his mouth. Abu feasted on Bakhit's thick seed, swallowing it desperately as he masturbated.

The cougar purred and straightened his back, lifting his muzzle up and looking at the ceiling as he enjoyed the massage the other feline was giving his insides. Max sighed, closed his eyes, his penis quivered and began to ejaculate onto the toilet and the bathroom wall.

Abu withdrew his muzzle from the cougar as he finished cleaning it, closed his eyes and went back to masturbating. The memory of his brother's ass still fresh in his memory, and the taste of cum in his mouth were too much for the boy, causing the young lion to shoot four powerful jets of semen onto the bathroom floor within seconds.

A few minutes later, Max and Abu finished dressing and as the cougar was about to open the cubicle door, the lion, who was a head taller than him, put his huge hands on his shoulders and stared at him.

"If Bakhit asks, tell him I fucked you," the lion said, fearful of his brother's opinion.

"Abu, easy...I don't think that..."

"Please, Max! If my brother found out what I just did he'd kill me!" the teenager pleaded.

The cougar smiled and rested his own hands on the lion's shoulders in an attempt to comfort him, "Relax, he won't know anything."

Abu swallowed and nodded in relief, "Thanks," the feline murmured.

"You really should try to talk to him...he's your twin brother, I'm sure he must feel something similar," Max said.

"No, Max, that's not going to happen..." replied Abu as his eyes filled with tears.

The cougar hugged his friend and the two stayed a moment longer in the public restroom, in silence, sharing their warm bodies to calm the frantic pounding of a young heart.

When the two felines emerged, Bakhit was waiting for them leaning against a nearby lamppost, a can of soda in his hand. As the other two teens approached, Bakhit took a long swig from the can and burped, then slapped his brother on the back twice hard as he smiled, "How was our whore's ass?"

Abu forced a smile, "Very good, as always. I'm surprised it's still so tight with all the use we give it," the lion lied.

Max let out a sigh and dropped his arms, hunching his back, "My ass is on fire..." moaned the little feline.

Bakhit let out a laugh," Sure it is! My brother may look a little faggy like you, but he's really a male lion like me!" said the lion proudly as he pounded his chest with his fist.

"So... Shall we go to the giraffes?" asked Abu.

"Yes! Giraffes!" roared Bakhit.

The two lions marched in the direction of the giraffe cage. Max liked the idea and decided to follow them, but before he took a step behind the twins a huge hand grabbed him by his shoulder. When the cougar turned to see who it was, he ran into a tall Doberman, dressed in a gray uniform and carrying a bucket with a mop.

"Hey you... You guys made quite a mess in that bathroom," growled the canine.

"Hmm... Sorry?" asked Max, raising an eyebrow.

"You've got a nice ass, maybe you could lend it to me for a moment for overworking me," said the janitor, flashing a big grin that revealed his yellow fangs.

The cougar let out a long, tired sigh," Okay... but no knot, I want to get to see the giraffes," the cougar clarified, and walked off with the Doberman back to the baths.