It was a silent, peaceful night, and the suburbs are pretty dim, as most are sleeping soon. However, two Poochyena were walking through the streets, finding some spots to rest.

The twin Poochyena brothers are looking around for their mother, but they're talking about some stuff.
"Bro, do you know where our mom are?"
"Not sure. She's finding for our dad, but not avail. I believe she's around this area."
"Pretty sucks. I believe our dad went out without informing our mom."
"I believe someone had a foreign affair so..."
"What do ya mean, bro?"
"Nope. We have to find out where our mom is."

As the two Poochyena brothers entered a small alley, they spotted a Mightyena who's looking around. The two then looked at her cautiously.

The Mightyena looked at the two Poochyena brothers, knowing her two sons are coming. They seen their mother looking at them, and started a gossip.

"Your mom believe your dad's having some affair, so I don't care anymore. But you two boys are alive. I am grateful."
"Yeah. Thanks mom for the effort. So, mom, you got any plans?"
"Nope. But I may think about it."
"Hm. Well, not many wild Pokemon live here and there in this area. So, mommy, wanna have sex?"
"Sex with you two sons?" The motherly Mightyena thought.
"Yes. We brother will take turns."
"Hm..." The mother initially refused but later accepted. "I was about to reject but since I think your father's having affairs, and you brothers are mature enough."
"So mommy..."
"Mommy, let's do it for once."
"Ah ok. Don't tell your dad about this."

The Mightyena mother then nuzzled her twin sons before laying down, spreading her hindlegs looking up. "Let's do it."

The older Poochyena brother mounted on her, positioned his cock and pushed into her mother's pussy. He then thrusted more as he took the first sex with his mother.
"Aa ahahahah... So nice you are."
"Thank you mom. Our dad's idiot anyway."
"I guess."

The younger Poochyena brother asked his mother "Wanna do oral sex or anal sex?".
"Aahh nope. I don't like those."
"Ok. I will wait."

He looked at his older brother thrusted his mother and smiled.

After some thrusts of his cock inside her pussy, the older Poochyena brother the started cumming inside his Mightyena mother, filling her womb up with his seeds.
"Yes, yes, yes!"
"Aahhh... So nice!"
"Yeah, gonna fill you!"
"Good boy!"

He cummed more and more, panting as his cum filled up her womb. The Poochyena son then drained all his cum inside his Mightyena mother, before he pulled his cock out of her pussy. He let his brother do the next turn.

"Little brother, your turn."

The younger Poochyena brother then climbed on his mother, pushed his cock inside her cum-filled pussy. He thrusted more as he grabbed his mother.

"Yes!"

The Poochyena son thrusted hard but starts cumming immediately, as his cum flowing into his mother's womb, mixing his cum with his brother's. The Mightyena mother moaned as her second son cums in.

"Aahhh yes ah."
"Haah yah."
"So good..."
"Yay."

As the Poochyena drains all his cum, his Mightyena mother's belly now have a small bump from extra seeds made by her twin sons.

Sometime later, after finished up his cum, the Poochyena pulled his cock out, and looking at his mother.

"Mommy, you're definitely full."
"Yeah. I guess. We can change position now."
"Okay. Let's do it."

As the Mightyena mother stands up slowly on her four, her two sons are prepared. The first brother then jumped on her, and pushed his cock into her pussy from behind.
"Aahh yess!!!"
"Mommy, your so tight!"

Both the Poochyena son and his Mightyena mother are mating as his cock resumes cumming into her womb, mixing his cum with his brother's cum again.

After finished all his cum into her, he proceeded to pull out his cock from her pussy. Landing on the floor, he tells his brother to do it.

The second Poochyena then jumped on his mother again, pushing his cock into her pussy as well. His Mightyena mother does the same moan as he thrusted his cock inside her.

After a few thrusts, he resumed cumming inside her womb, mixing two brother's cum inside their mother's pussy. He panted as he's going to finish his cum.

Sometime later, the Poochyena son finished his cum inside his mother, and he pulled his cock out before he landed on the floor. The Mightyena mother panted as she looked at her two sons.

"I am really full already. You happy?"
Both the Poochyena twins said "Yes."
"Let me take a rest first before we go back."
"Okay."

The two brothers then discussed.
"It's quite an exciting show with our mom."
"Yeah, our father is stupid. He doesn't know on what to do."
"Agreed. Even though we can be different, we did the same way."
"Yeah. I guess. Quite an effort though. Our mom's exhausted."
"Okay. Let her rest first."

The two brothers then looked at their mother's back, their mixed cum can be seen forming a creampie inside her pussy. The motherly Mightyena mother doesn't care about pregnancy anymore, but she enjoyed every spurt and drop from her two Poochyena sons.

Later, the Mightyena mother called on her twin Poochyena sons following her back to the forest nearby, and they're having a nice rest.

----------

Several months later, the two brothers, now evolved into Mightyena, walked back to the den to see their mother. At the time, the Mightyena mother was already pregnant with her sons' babies. She felt so much pain as she's about to give birth soon.
"Mommy, you're about to give birth soon?"
"Ah, yeah... I am giving birth now..."
"Really?"
"Yeah. You two can help me?"
"Yes. We sure can."

As the two brothers pushed on their mother's belly, the baby Poochyena pups packed inside are about to going out, exiting the mother's womb. She moaned as her two sons pushed, trying to give her more children, as well as two brothers some sibling children.

The mother pushed a litter of 4 Poochyena pups, with two brothers came out before their two sisters. Unfortunately, the two brothers had died shortly after their birth, leaving the two sisters out.

The two Mightyena brothers then cuddled their daughters/sisters while carrying the dead bodies of their sons/brothers. It was a mixed day for them as only two of four survived.

The mother told her two sons. "Your first two babies, two brothers, have passed away."
The first brother then hugged the first daughter and asked. "It's sad to see your two brothers died. I feel mixed today so..."
The second brother, who cuddled the second daughter, looked at his brother. "It really sucks, brother. Might have thing to do with incest but I hope our sisters can stay healthy and strong, like we do."
"I hope the surviving girls can grow healthy too." The mother smiled before she went to sleep. "You can take care of them. I gotta take a nap first."

The two Mightyena brothers then looked at their Poochyena brothers/sons' corpses and one grabbed both. The surviving sisters/daughters looked at them with sad faces.

Days after the funeral, the twin Poochyena sisters walked around their fathers/brothers and climbed on them. And the Mightyena brothers have good time to enjoy happily with their sisters/daughters.

"Let's get over it, brother. We are happy to now have sisters of us as well as daughters."
"Yeah, I know. Even though we can't accept the truth our brothers died, we are glad to have two sisters to play with us."
"I guess. The Poochyena sisters are so cute, we can't resist."
"Also, it's easy to manage."

The Mightyena brothers, now becoming fathers, played with their Poochyena sisters around the park. It's not only a fun moment, but also a brother-sister, father-daughter fun moment for the rest of life.