"Does me watching you make you so excited?"
Kars turned his head, too shy to answer the question. Seeing this, Eirin Yagokoro looked back at Kars's cock, then silently reached out and grasped Kars's cock, making him jump in surprise.
"Doctor, what are you doing?"
"Can't you tell? I'm masturbating you."
"I know that, but why are you doing this to me?"
Unlike Reisen and Tewi, Kars found Eirin Yagokoro suddenly doing this to him somewhat unbelievable. Her slightly cool hand gripped his cock and began massaging it with a very comfortable technique, making Kars feel particularly good.
"Why? I can only say it was a sudden impulse." Eirin Yagokoro gently rubbed her thighs together. She was certain this effect was partly due to her previous exposure to Kars's activated energy. Although it wasn't severe, it had indeed caused some subtle changes in her mind and body.
And when she looked at Kars's cock, she felt that particular thought grow stronger, so she reached out and held Kars's cock in her hand. Originally, she had intended to use such means to make Reisen and Tewi feel the convenience of the activated energy later, but now, the difference was that she was doing it herself instead of asking them to.
"How is it? Do you like my massage?" Eirin Yagokoro used both hands. She knew exactly what kind of technique would allow Kars to experience a very different kind of pleasure, and Kars's expression of being unable to resist showed how effective it was.
"Am I getting excited too? Having such thoughts about a boy who is so much younger, and his cock…" Eirin Yagokoro looked at the cock in her hands, and her eyes slowly became different. It was as if there was a special allure, tempting her mind to get closer and enthusiastically engage with this young, strong cock. Eirin Yagokoro followed this impulse and leaned down, taking Kars's cock into her mouth.
Then, as if savoring a delicacy, she began to taste Kars's cock.
"Wuwu~ The taste is addictive… I'm captivated by this cock."
Eirin Yagokoro's blowjob was intense. Kars felt as if his cock was about to melt in her mouth. Her tongue, with every contact, brought a strangely stimulating sensation to his cock, and this intense feeling made his mind go blank. Finally, he couldn't hold back and ejaculated into her mouth.
Thick semen shot into her mouth, and Eirin Yagokoro tightly held the cock in her mouth, preventing the excessive semen from flowing out.
After the ejaculation stopped, Eirin Yagokoro looked up and opened her mouth under Kars's gaze, revealing her mouth full of thick, creamy semen. Her tongue slowly moved within the semen, looking particularly sexy.
"Did my mouth make you cum so much? Hehehe~" Eirin Yagokoro slowly closed her mouth, moving her lips seductively and swallowing all the semen in her mouth. Then, under Kars's longing, gulping gaze, she performed the sensual act of licking her lips, making his cock, which had just ejaculated, feel no sense of fatigue whatsoever.
Eirin Yagokoro moved closer to Kars and held him in her arms, pressing her full breasts tightly against Kars's face, immediately grabbing his attention.
"If you like it, you can touch them, you know." Eirin Yagokoro whispered seductively into Kars's ear. Kars didn't hesitate and immediately reached out to touch Eirin Yagokoro's breasts.
"Mmm~" Being touched on the chest for the first time made Eirin Yagokoro's body tremble slightly with pleasure. She smiled as she looked at Kars's somewhat intoxicated expression.
"Kars, do you enjoy doing this with me?"
"Yes, I do. The Doctor's hands and mouth are very comfortable."
"In that case, I can keep doing this for Kars in the future. However, in return, you need to help me with the medicine research and production. I need the activated energy in your body."
"Research!?" Kars jumped at the word, but relaxed after hearing that she only needed the activated energy from his body.
"Alright, I will cooperate with the Doctor."
"Good boy." Seeing Kars nod in agreement, Eirin Yagokoro smiled contentedly. The problem of raw materials was solved. She no longer had to worry about running out of medicine after testing it once.
"Doctor… I want to suck the Doctor's tits."
"Alright, but I don't have any breast milk, though." Eirin Yagokoro unbuttoned her top, revealing her mature and sexy black lace bra to Kars. She then unclasped the front of the bra, and two full breasts popped out, bouncing up and down in Kars's line of sight.
Kars immediately grabbed one in each hand, leaned in, and began sucking on the pink nipple. Eirin Yagokoro looked at Kars, who was acting like a baby, and simultaneously stroked his head and masturbated him.
"Mmm~ Are you going to cum again? Your stamina is truly immense, child. Hurry up and cum it all out now." Eirin Yagokoro felt the slight swelling and throbbing of his cock and quickly increased her hand speed. Thick semen soon erupted, and because she had purposefully adjusted the direction, it all shot onto her body and face. Being soaked in the thick semen made Eirin Yagokoro let out a cry of satisfaction.
"The taste is even thicker than before…" Eirin Yagokoro put the semen from her hands into her mouth to taste it, and was very satisfied with Kars's semen.
While she was still savoring Kars's semen, Tewi Inaba, who had seen Reisen leave, ran back. Just as she opened the door, she saw Eirin Yagokoro covered in semen, her face showing a look of utter bewilderment.