To get MS Rui and little Tsuka in the mix together only leads to one single result~

First of all, let me thank you for enjoying my fic, it really means a lot to me since fanfics take even more time than drawings to me! And yeah, I've thought about something similar in that universe hehe, there's so much one can do with hypnosis. Now let's see what can I flesh out of both of these excellent ideas.

//cw: underage, shota, age gap

It's easy for Tsukasa to accept staying with the neighbor's son while the parents are away, and more than easy, he's eager to spend all that time with Rui-niisan because he's so much fun!

Rui has taken care of Tsukasa several times before, so Tsukasa really trusts him, and especially loves the way Rui tells him stories or plays with Tsukasa, putting on little shows together, and that's not even mentioning Rui's workshop, full of so many toys and inventions, a wonderland for a kid like Tsukasa. And to be able to enjoy it for such a long time?! It's a dream come true! No more "Tsukasa, come home" from his parents interrupting their fun, he'll practically live with his beloved Rui-niisan!

Tsukasa has never questioned the way Rui touches him, after all, Rui is his friend and he likes him too much. He always pats his head with his big rough hands or tickles his belly to make him laugh... He also tends to stroke Tsukasa's chubby, squishy cheeks, small shoulders, thin arms and legs when they're watching cartoons together. It makes Tsukasa feel relaxed and very good, but something feels different when on the first day of his stay, while Tsukasa is distracted by the colors on the TV, Rui slides his hand lower than his stomach, something he had never done before. The little blonde can't help but whimper in surprise.

"R-Rui-nii-" He is cut off by the hand sliding under his shorts and underwear, Rui's fingers now in direct contact with his hairless, unblemished sex, stroking the wetness in a gentle back and forth motion.

"Shhh... It feels good, doesn't it, Tsukasa-kun?" Rui's voice is deep and raspy, as if he's barely containing something within himself, making Tsukasa shudder along with the sensation his onii-san is giving him. And he's right, it does feel good. The little boy grinds his hips unconsciously, searching for more of that new and nice sensation that he's quickly beginning to accept, after all, it's from his friend Rui.

After a while of this, Tsukasa has his first orgasm, dry and quick because he is so sensitive and so young, his body still undeveloped, and the expression in Rui's face is one of absolute delight. He showers the little boy in praise and caresses, and Tsukasa feels so warm inside that he wants to do this again, the cartoons on TV already forgotten. And Rui will take advantage of that for this next week.

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I wanted to write more but I might as well write a fanfic instead 😭 And we still have to discuss the hypnosis's idea!

I bet Tsukasa would be so confused, feeling his body all warm and tingly at sudden intervals, and he would get hornier more and more often, making him feel ashamed of himself and try to deal with it by overworking himself to avoid those thoughts and feelings. That doesn't work since for some reason, whenever he's close to Rui his body reacts by itself. And oh, Rui would absolutely notice it and take advantage of that, giving him the confidence to maybe one day, fuck Tsukasa without hypnosis. He will never get tired of taking and taking from Tsukasa. 💕