Imagine drugging immy at breakfast and pulling her to your room to have your way with her.
Your heart hammering in your chest you wait for your moment. When your parent's aren't looking and immy is distracted by her phone you slip it into her water. Watching her slowly lose her composure and excuse herself, saying that she wasn't feeling well and was going to lay back down. Already having finished your meal you quickly catch up to her stumbling down the hallway and grab her by the shoulders offering to help her back to her bed. Immy, delirious and groggy as her faculties failed her only thanked you. Her kind older brother. You were going to use that for all it was worth and take your opportunity. Take what was yours... Taking her under your arm you steered her to your room and helped her sit on the bed. Locking the door behind you, you hear immy fall back fully onto the bed mumbling that this wasn't her room. You assured her that you just want to keep an eye on your precious little sis when she wasn't well. Stepping over to gauge how she was handling the narcotic you saw her starting to sweat, profusely even, having soaked that My Melody camisole she had since elementary school; her tummy visible and her nipples peaking beneath the thin white fabric. You lean over and brush her hair out of her face, still soft and pretty even if it was matted with sweat. You hand dropping down to cup her cheek you whisper her name. Immy. Immy.
Before she has a chance to respond you lean down and catch her lips. Hardly resisting in the state she's in, kissing her again and again. Feeling her start to squirm in your grasp you hold tighter onto her head with one hand and trail the other down to her chest and begin to knead her breasts. The kiss isn't enough though, not nearly enough. Pinching and pulling on a nipple you force a gasp and with nothing but a whimper in defiance you snake your tongue into her mouth. Almost in aw at how your little sister tastes you begin dominating her little tongue. Growing rougher with her tits, the squeaks and whines driving you further and further. You twist her nipple. Grab it hard enough to bruise. Every noise you draw from her is heaven sent.
Every break in your kiss is followed by a whisper in her ear. How much you love her. How long you've waited to have her and make her yours. Her little hands have found their way to your chest, balled up in knots and holding onto you for dear life as she's rocked by pleasure. The little body underneath you writhing in pleasure.
Pulling back to look at her again your eyes scan her body. Her eyes staring into the distance. Mouth agape panting to catch her breath, you idly caress her breasts as you look lower and see something that gives you a wide smile.
In between her thighs you see damp panties. She isn't just wet though. She's drenched. She came.
Leaning back in you tease her. Was it the kissing? Or you playing with her tits?
Hearing her weakly stumble over her words trying to deny you. Grabbing her by her chin you keep your grip firm, not letting her look anywhere else.
Tell me, you say staring down at her coldly. With your presence looming over her immy unable to keep hide it she tells you that you playing with her chest was what made her cum. So you're telling me that just me touching your tits, twisting and pulling on these; punctuating each word with a grope, a pinch, a rough tug. Made you cum? I can't believe my little sister is such a dirty slut.
Picking her up. Bringing your delicate sister into a hug, gently cradling her in your arms as you have her straddling you. You tell her it's ok angel. You know why? Because you're mine now. You say you're alright with her being a depraved whore. You'll train her, you say as you grind her down on the bulge in your pants, hands tight around her hips, a damp spot forming as her juices leak out.
Immy. Undo my belt. Unbutton my pants. Her body, slumped over and supported by your arms makes no move to follow your command. Allowing your frustration to get the better of you you grab hands and put them on your clothes. Helping her fumble through removing your belt and lowering your pants, her weakened arms unable to wrench themselves free whenever she tries to put up her little token resistance. Finally pressing her little hands onto your shaft you exhale. Her hands are so soft... Tipping her head up to look at you, breaking her eyes of of your dick, you stare her down and tell her to start moving her hands up and down. Tightening your shaft in both of her hands she gulps and whispers out a soft yes big brother and starts pumping your cock. Settling back again you watch your little sister jerk you off. Dainty, soft hands barely able to completely fit you between them. Without noticing immy slowly started to grind herself in time with her strokes, your pants messy and soaked. Her eyes only breaking away from your length to steal glances at you when ever a groan slips from your mouth. Closer and closer to the edge you start trusting up to meet her hands, immy softly moaning in time with you now. The rocking motion aiding her in riding your thighs. Nearing your climax you desperately grab immy's head and force it down shoving the head of your cock in her mouth. Startled, her hands beating against you in reflex even as she hungrily rubs her cunny against your jeans in search of more pleasure. You start shooting rope after rope inside her mouth, shocked and unable to swallow from the sheer amount she chokes and sputters, cum leaking out the sides of her mouth.