I love Kiis with a noncon, impregnation theme.

Isg always being Kis’s obstacle. When Isg managed to win against Germany and get awarded The Best PIFA Men's Player, he flaunted the achievement to Kis. Kis who reached his breaking point decided to do something to wipe the smirk on Isg's face.
 
In a celebration banquet hosted by PIFA, Kis keeps giving Isg an alcoholic drink to make him drunk. It’s easy since they’re in a festive mood so Isg aren’t refusing. After that, he brings the drunk Isg to his hotel room. When Isg woke up he found his hand bound above his head and Kis sitting at the side of the bed.

Isg tried to release his hand and yell at Kis to stop joking but it fell on deaf ears since Kis was grinning looking at him. Kis then tries to force Isg to drink something but Isagi refuses so Kis makes Isg drink via the kiss. Soon after Isg's body became hot and precum leaked from his dick. Isg is getting agitated he asks Kis what he gave him. Kis with a smile on his face just answered ”An aphrodisiac.”

Upon hearing that Isg stopped moving, his eyes wide with shock. Kis slowly undresses Isg who pleads him to stop. Tears started to pool in Isg’s eyes and it only made Kis feel thrilled. Kis took his time to prepare Isg’s ass, savoring the begging that turned into a death threat from Isg’s mouth.

“Kaiser you bastard, I’m going to kill you!”

“Aw, I love you too Yoichi.”

The threat stops when Kis manages to find a certain spot that makes Isg moan loudly. Then Kis begins to abuse the spot until Isg cum. Finding out his rival can come from only a finger amusing him.

“It seems you’re more sensitive than I thought.”

Isg lying in the bed looking helpless and a crying mess awakening something in Kis. He immediately undresses himself and enters Isg’s twitching hole with a swift move. Not caring that Isg is currently overstimulated. 

Kis set a rough and fast pace. His dick hitting Isg’s womb over and over again. Isg who drowns in pleasure can only moan and cry. When Kis is close to coming he slows the thrust and whispers in Isg’s ear, “Did you know, actually the aphrodisiac has another effect… fertility enhancement.”

The dumbfounded face on Isg’s face turns into fear when Isg starts to connect the dots.

“I’m going to make you pregnant ❤”

Upon hearing it, Isg starts to thrash his body around but the grab Kis has in his hips makes him unable to move much.

“Not inside! Pleas-ah!” Isg can only cry begging Kis to stop. But Kis didn’t care, he wanted to impregnate the man that had been a thorn in his side.

It didn't take long for Kis to finally come inside Isg and he didn’t stop, Kis keep fucking Isg all day filling the womb with his cum until it overflow from Isg’s ass.

After a certain time, Isg realizes that his hands are no longer bound but the aphrodisiac has already taken over his body and Isg is no longer fighting to get away from Kis. In the end, he drowns himself in pleasure.

When Isg starts to lose consciousness he hears Kis speaking tenderly at him.

“Since you take over my throne it is only fair I take what is precious from you. With a child inside, you will have a hard time playing football.”

Sorry to dump you noncon porn.