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Notes:

If you have not yet read the original fanfic that I linked to, I recommend you to do so. This happened somewhere near the end of chapter 3 when Tsukasa had finished marking Senku as his mate. This drabble is not real or relates in that story, but yeah who is gonna stopping me to write more? (Actually this is a draft that I had in my note weeks ago)

(See the end of the work for more notes.)

Work Text:

The air in the small room is full of the pungent smell of sex, mixed with the smell of overflowing pheromones of 2 people hugging each other. There was a heavy breathing and a moaning sound from the depths of the throat.

 

Tsukasa’s hand slid down Senku’s waist and gripped it tightly, he took a deep breath, eagerly enjoying the way Senku’s pheromones filled his nasal cavity. The dick buried inside him became even more erect, inserting into his prostate, making Senku unconsciously twitch his hips. His fingers kept the rhythm of rubbing and fondly non-stop on the nipples that were already red after being stimulated many times. As if that wasn’t enough, Tsukasa slid the hand holding Omega’s waist down to his cock and caressed it ruthlessly.

 

Senku made a sound like sobbing while climaxing again.

 

Of course, that doesn’t affect the Alpha behind continuing to play with his body. Senku’s tears flowed more, every drop was forced out by the terrible amount of pleasure he was experiencing. He didn’t even have the strength to move himself, but the slightest movement at the moment was enough to put pressure on his inner weakness. With each passing second, Senku felt that his mind was like jelly. Surely he had never thought that one day he would have to writh in sex like this, not being prepared at all for the wave of pleasure that was constantly coming in made the scientist feel like he was drowning in it. He couldn’t force himself to stop moaning and whimpering, although he didn’t expect that he could cry so much. Knowing what to do, every touch of Tsukasa makes him think of the place that people often call heaven. He even dreamily thought that he must be retaliating with him for hiding the whole story about this mate thing from the beginning.

 

Because he is really about to lose his mind...

 

Tsukasa couldn’t help but pry his teeth at the back of his partner’s neck, bringing those stings over Senku’s bite and natural sensitive skin. The scientist did not say, but he could deduce from his reaction that the pleasure that came from it was not inferior to other spots. The stimulation of the scent gland here also gives Tsukasa a sense of satisfaction and possession more than anywhere else. He really wish he could keep touching Senku like that even when they weren’t having sex. How wonderful it would be to see Senku’s face flushed or his legs suddenly limp just under the impact of just a simple kiss on the back of his neck.

 

Senku’s eyes watered again when Tsukasa took another bite on his nape.

 

Two marks?! That is more than necessary-

 

“Sorry, Senku.” Tsukasa withdrew his hand and suddenly, with a strong force, he held both sides of his slender waist to lift Omega’s entire body up and down quickly. Senku sobbed and then only intermittent moans remained as Alpha continued to do so. The prostate gland, which has been superficially stimulated for a while, is actively responding to this new collision full of happiness. Senku panicked, unconsciously clutching the muscular arm to find a way out before the huge wave of pleasure that was massively hitting his whole body. He couldn’t tell whether he was continuing to cry or simply moaning, that was now only Tsukasa was at least conscious enough to listen.

 

Ahhh!” Senku shrank his toes as much as possible, his nails stuck tightly into his partner’s hand. “Slow- ah!!”

 

Tsukasa ignored, he was enjoying the current comfort too much.

 

Tsuka-“ Senku sobbed. “You’re going to kill me- Nngh...!! Hah...ugh...”

 

Tsukasa continued to caress the back of the scientist’s neck.

 

“Enough- enough-“ As expected, Senku only squirmed more. “Slow down- Hahh...!”

 

The top of the cock stiffened, the milky white liquid continued to shoot out, oozing down but neither of the two paid attention.

 

Alpha hugged his Omega tightly, kissing his tears. Senku was trembling like a leaf, he couldn’t even open his eyes. More and more pheromones were released, he exhaled softly and then continued. The sensual sound continued to fill the room.

 

Senku struggled and leaned forward to get out, but Tsukasa easily pulled him back. The scientist’s brain now has nothing but constant pleasure and the name of his mate. He was defeated, completely.

 

He moaned and cried when the Alpha behind him gently kissed his lips. “I will definitely... ah- die in your hands again after this...”

 

“Don’t say so, I love you.”

Notes:

Had no idea abt the name so I put their emoji instead. So cute 🦁🥬

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