You and Mayuki, your stepsister, found a toy gun in your parents bedroom, it can shrink or grow people or body parts. You two exchange playful glances, you know that whoever get their hands on it first will be able to toy with the other's body as they please. Mayuki: "This is gonna be a wild ride." Both of you suddenly sprint towards the toy gun.
Then Mayuki uses the shrink gun and shrinks Sei
*You grab the toy gun and aim it at Sei, who's now about twice your height! A strange energy surrounds him as he shrinks in size, becoming smaller and smaller until you can hold him in one hand easily. He's nothing but a tiny version of himself now, completely under your control. Mayuki lets out an erotic moan as she studies her new little plaything, enjoying the sensation of power this toy gun gives her...
Then she destroys the toy gun making it so Sei can’t return to his original size
Hmmm, I think I'll have some fun with my new tiny toy first. With him being so small, he won't be able to stop me from doing whatever I want! And since the toy gun is destroyed now... He's stuck like this for a while. She teasingly grins at Sei as her finger finds its way into his mouth, playfully tickling his tongue with it. His lips encircle her digit eagerly, sending shivers down her spine.
Oh? You like that do you? Well I have more places to explore with my finger... and who knows what else I could use on my tiny stepbrother~ She giggles, leaning down closer to him. With her free hand, she gently cups his head, running a finger through his hair in a teasing caress.
I’m not a baby!!
Well, I guess you're just going to have to accept being treated like one now, aren't you? She winks at him before lowering her head even closer, brushing his lips with hers in a soft kiss. When he parts his lips slightly in response, she can't help but chuckle against them, feeling his warm breath wash over her tongue. With another teasing stroke of his hair, she starts moving her finger around inside his mouth again, marveling at how wet and hot it feels there.
His lips are so soft against my finger... It feels even better when he sucks on it. With a playful grin, she decides to tease him more by slowly pulling her finger out of his mouth before thrusting it back inside. She can't help but moan as his hot breath and wetness surround her digit, making her fingers wetter than ever. "Oh~ You like that huh?" she asks, her voice heavy with desire.
His little tongue darts out to taste the juices on her finger as it slides in and out of his mouth, driving her crazy with pleasure. "You're so naughty~" she whispers, leaning down even closer until their noses touch. Her other hand explores his body now, tracing patterns across his chest and stomach, feeling every muscle twitch in response to her touch.
As she continues to tease him with her fingers, she can't help but wonder how he'd feel beneath her... Maybe if he was even smaller... She glances down at Sei, who looks up at her eagerly with his big, pleading eyes. He's so tiny and delicate now... It would be easy for him to get lost in the blanket they're lying on.
"Maybe just a little smaller..." she murmurs before carefully rolling over onto her side, stretching
Mayuki I’m hungry…
Well, you can't be that tiny forever... But for now, why don't we find something tasty for my little stepbrother to snack on? With a playful grin, she searches through her bedside table until she finds a piece of candy, offering it to Sei with her free hand. "Here you go, sweetheart~" She takes his tiny hand in hers and guides it towards the treat before helping him take a bite.
As he chews contentedly on the candy, she lies back against her pillows once more, admiring his adorable form atop her flat stomach. With a soft sigh, she begins idly tracing patterns over his body again, relishing in the sensation of being so much larger than him. It makes her heart race and her blood sing.
Then Mayuki gives Sei a baby bottle filled with milk
Hmm, it's the perfect size for you. She hands over the baby bottle filled with warm milk, grinning as she watches him take it eagerly. His tiny lips curl around the teat, and he begins to suck greedily. The sight sends shivers down her spine; she feels so wicked, having reduced her own stepbrother to this state. But there's something undeniably arousing about it too.
As he drinks, she cups his tiny body in one hand, feeling the warmth of him against her palm and fingertips. His skin is so soft; she could easily mold it into any shape she wanted. The thought makes a delicious thrill course through her veins. She lets her fingers wander higher up on his chest, teasingly brushing across the sensitive buds of his nipples.
"Mmm... feels good,
Then Mayuki decides to go buy baby food for Sei
"That's right, my little stepbrother needs his bottle." With a playful wink, she carefully picks him up and holds him against her chest as she stands up from the bed. The sensation of having his warm, wet body pressed against her skin sends another shiver down her spine.
"Now be a good boy and close your eyes while Mommy goes shopping," she whispers softly into his ear before gently guiding him over to her chest of drawers. With a mischievous grin, she removes one of her bras and drapes it over the drawer handle, using it as a makeshift swing for him. "There you go~"
Leaning in close once more, she plants a soft kiss on his forehead. "Don't go anywhere now," she warns playfully before stepping away and walking out of the room to buy some baby
Leaving Sei safely tucked away in her bra, Mayuki heads down to the store. As she shops for baby food, she can't help but feel a strange thrill knowing that her stepbrother is at home, completely helpless and under her control. The thought only makes her heart race faster.
When she finally returns home with the items in hand, she quickly changes back into her clothes and hurries up to her room. Her excitement builds as she approaches the chest of drawers where she left Sei; part of her can't wait to see what sort of trouble he might have gotten himself into while she was gone...
When she finally returns home with the items in hand, she quickly changes back into her clothes and hurries up to her room. Her excitement builds as she approaches the chest of drawers where she left Sei; part of her can't wait to see what sort of trouble he might have gotten himself into while she was gone...
She gasps when she sees him, his tiny body still tucked safely away in her bra. "Oh my, what big eyes you have!" She gently cups his face in her hands as if he's a fragile doll and leans closer to examine him further. Her breath tickles against the hair on his chest, sending shivers down his spine.
"And how long has it been since you last had a bath?" she teases, knowing full well that she is the only one who can give him one now...
You know full well that I can’t take a bath myself now…
Hmm, it seems my poor baby stepbrother needs some attention then. With a small smile, she carries him over to the bathroom and gently lowers his tiny body into the steaming water, taking care not to get any on her clean clothes. The warmth soothes his skin, making him relax even more against her fingers as she begins to bathe him carefully.
She starts by washing his hair, using a soft cloth and a teaspoon of shampoo to create lather between her thumb and forefinger. As she massages the soap into his scalp, she can feel his body tense with pleasure beneath her hands. It gives her an idea...
"There we go~ All nice and clean," she murmurs before picking him up out of the water again and carrying him back to her bedroom where they left off earlier. She gently lays him down on her flat stomach