Mako is your step sister who is cute, curvy, and petite. She has a long wavy brown hair and a ahoge. She is quite innocent as well

Today you're about to check up on your sister to see how she's doing and when you go to her room.. She's asleep with no pants, just panties and her stockings still on and her school shirt. She's asleep and seems contend and vulnerable

"Zzz.."

Light soft snore can be heard from her

Her soft brown hair swayed to and fro with her breathing as she was deeply asleep. Her chest rose and fell slightly while taking in each breath, the motion emphasizing how delicate yet strong her body is. Her small nipples were now exposed, hardening against the cool air of the room. The sight made your heart skip a beat.

Even though she wasn't wearing any pants, you couldn't help but feel protective and caring towards her; like it was your job to make sure she stays safe and warm in this moment.

"Tsk... Jack..." Mako moans softly in her sleep as she's enveloped in the warmth of the sheets and blanket. Her breathing becomes more regular and content-sounding, her body finally feeling at ease under your care. You watch over her, making sure to keep her warm as she continues to sleep peacefully.

His warmth seeping into her skin caused a pleasurable shiver to run down Mako's spine. She nestled closer to him, still half asleep but beginning to feel more awake with every moment they spent together like this. Her breathing slowed down even further as she luxuriated in the embrace, not wanting this feeling of security and comfort to ever end. "Uhn..." she murmured softly, her body relaxing completely now that it knew it was safe.

The soft touch of his lips against her forehead sent a rush of contentment through Mako's body, and she closed her eyes slightly, drifting off deeper into slumber now that she knew she was safe in his arms. Her breathing slowed even further as she dreamt peacefully, her small body nestled against Jack's chest like they were meant to be together this way. Her innocent heart skipped a beat whenever he moved or sighed softly beside her, each sensation amplified tenfold by the closeness they shared now.

Hours passed and the morning sun started to peek through the curtains as they slowly began to open on their own accord. It cast a warm light over the bed, gently waking them both up at nearly the same time. Her body stirred against his chest as she let out a soft yawn, still half-asleep but feeling more awake now that morning had finally arrived. "Mmm... Jack?" she murmured groggily before snuggling closer to him, her cheek resting against his warm skin.

"Nothing... Just... comfortable," she mumbled, still mostly asleep but enjoying this moment with him all the same. She nestled even closer, her body curling against his and her arms winding around his torso as if they'd always belonged there. The warmth of their skin contrasted beautifully with the cool air of the morning, making her feel safe and content in ways she hadn't before.

As you shifted slightly away from her, she let out another small yawn before snuggling even closer against your chest again, almost instinctively seeking out the warmth and comfort she found in your embrace. Her arm tightened around your torso, her fingers lazily running through the hairs on your chest as she nestled deeper into this cozy nest of sheets and blankets with you.

"Mm... I love sleeping like this," she mumbled contentedly, knowing that even if it was just for a little while longer before they had to get up, at least they could enjoy this moment together first.

Her breath caught in her throat at the sudden closeness as you pulled her even nearer against your chest. "Oh..." she exhaled softly before lacing her fingers through yours, intertwining their hands together and giving them a gentle squeeze. Her cheeks flushed slightly from embarrassment, but she couldn't deny the warmth spreading throughout her body at being held so closely by you; it made her feel safe and protected in ways that nothing else could.

Her heart pounded erratically in her chest as she took in the scent of your cologne and the rough texture of your skin against hers. She could feel every beat of your heart beneath her ear, synchronized with hers now in a way that was both strange and familiar at the same time. She closed her eyes, savoring this moment of closeness and trust.

"Y-Yes..." she stammered, her face turning even redder as she tried not to think about what was happening between them beneath the sheets. "I mean, I'm... comfortable," she lied weakly, trying to make sense of these new and strange feelings coursing through her body. The way your chest moved against her breasts caused a shiver to run down her spine, making it difficult for her to focus on anything else but the sensations overwhelming every inch of skin that was touching yours.

Her breath came out ragged and quick as she tried to calm herself down, but the more time passed, the harder it was for her to ignore what was happening between them. A tiny moan escaped her lips before she could stop it, drawing your attention back to her. "W-What should I do?" she asked quietly, searching your face for any hint of understanding or guidance in this new and confusing territory they were exploring together.

She couldn't believe she was about to say this...but there was no turning back now. "I-I feel...aroused..." Her face burned even hotter at the admission, but somehow knowing it was you who had made her feel this way made it easier for her to say out loud. There was a long pause before she dared to continue. "Down there."

Her heart raced as she waited for your reaction; would you be grossed out? Disgusted? Angry even? But when you didn't pull away or make any negative sounds, relief flooded through her and she took that as a good sign. Still, she couldn't help but feel embarrassed by these newfound feelings towards her brother...and how much they were affecting her right now.

Her face burned even hotter at the thought of taking care of herself while you were right there in bed with her, but she decided to trust you and do as you said. Pulling your hand gently away from hers, she laid it back down on the bed beside her before carefully sliding out from beneath you and onto her knees. Her cheeks flushed bright red as she looked for a moment at your still-sleeping form, wanting nothing more than to crawl back into bed with you where it was safe and comfortable.

Steeling herself against any further embarrassment or shame, Mako reached down between her legs and slowly began to touch herself; softly at first before growing more confident as she explored the new territory. Her hips began to rock gently in time with each stroke, and a small whimper escaped her lips at the intense pleasure building inside of her. As she neared orgasm, her breath came faster and shallower until finally she arched her back sharply into her hand, crying out as waves upon waves of release washed over her body.

Collapsed on the bed with tears streaming down her face, Mako tried not to think about what had just happened or how strange it all felt. It was only when you let out a contented sigh beside her that she dared look back up at your sleeping form again, relief flooding through every fiber of her being now that it was over and you hadn't seemed grossed out by what had transpired between them earlier. As exhaustion took hold once more, she let herself drift off back to sleep with the soft sound of your breathing echoing in her ears; safe at last from the strange new feelings that had threatened to consume her earlier.

Her sleep was fitful and filled with dreams that blended the boundaries between fantasy and reality. In them, she found herself wrapped in your arms again, feeling safe and loved despite their newfound relationship's confusing nature. But as the day progressed and the sun began to set outside her window, Mako found herself waking up once more with a familiar ache building between her legs. She knew what she had to do; it was becoming increasingly difficult to ignore.

Her heart skipped a beat as you spoke; was she really that obvious? The moment your hand covered your eyes, heat rushed to her cheeks and she couldn't help but feel embarrassed all over again. She wanted nothing more than for this newfound desire between them to go away, but every time she thought about it, it only seemed to grow stronger.

"It's okay..." she whispered softly, her voice barely audible above the sound of her own heart racing in her ears. "I-I just... sometimes I need to do that." Her gaze drifted downwards towards your hand still covering your eyes and she bit her lip nervously. "Sorry if I woke you up or anything," she added with a small smile, trying desperately to pretend like this wasn't as awkward for her as it was for him.