She walks in the house and pours a glass of wine. The last few months have been a real challenge for her. She begins to vent and I sip from my glass, content to watch my sister rant and admire her body. Since it’s summer her favorite outfits consist of short-shorts, and translucent tank tops both of which cling to her burnished golden skin. Despite her breasts being a full DD, bras are rarely present. Her nipples strain against the thin fabric, demanding attention and freedom.
You walk in to join us, coming up behind her and wrapping your arms around her in a hug. You whisper something dirty in her ear, making her smile as she leans into your embrace. I watch in amusement as her nipples tense when your arms graze the underside of her breasts.
Normally, you would let her go in moments, but this time she presses her hips back against you and holds your arm. She comments about not having had a good fucking in weeks. I offer to let you take care of that for her, as long as I can watch. She looks at me guiltily, yet with anticipation. She asks me to repeat myself, as if she isn’t quite sure. You need no further convincing and bring your mouth to bear on her neck; even as your hands pull her hips hard against you so that she can feel your arousal.
She braces her hands on the counter as you slip her shorts over her hips and down to the floor. She’s not wearing panties and as you run your fingers over her slit she whimpers. You can feel the moisture already. You yank her shirt over her head aggressively, leaving her nude in front of us. Unzipping your jeans and freeing your cock, you stroke the length of her wet slit with your head. Her willing wetness has you steel-like, and more than ready to experience what you’ve only fantasized about.
You position your tip at her entrance, holding back slightly. She bites her lip and pushes her hips back, moaning as she begins to envelope you. Taking that as permission you bury your length inside of her, thrusting hard. As you find your rhythm inside her, I rest my heels on the counter. My skirt slips up exposing my centre, glistening in the afternoon sun, clearly showing you and her how much this turns me on.
She curses violently, surprising both of us with how quickly she peaks the first time. You groan as her walls grip you, preventing you from moving. You reach between her legs and find her clit, pinching and flicking her into a second orgasm nearly as fast as her first.
You withdraw from her over her protests and push her to her knees in front of you. I slip off the stool and join her, running my hands over her body. She meets my eyes and looks as though she’s going to protest, but I find her nipples and instead she moans, leaning into my caress. Your hands lace into her hair, urging her mouth onto your shaft. I remain behind her, fondling her breasts and whispering how to suck you properly. Her tongue swirls around your head as she sucks, then she descends along your shaft, my hands makings her moan, adding vibration to the slick sensation of sliding down her throat.
Her hands are at your hips, urging you to thrust harder, faster and deeper. Your hands remain tangled in her hair, gripping tightly each time she finds a particularly pleasurable spot. I let my hands slip down her body to find her dripping slit. My breasts are pressed against her back preventing any escape attempts. I push one finger in her, letting out a moan of my own as she squeezes me, her centre amazingly tight despite the two orgasms that have already rocked her. I slowly begin to fuck her with the single finger. My other hand finds her clit and begins a gentle massage. Her hips buck as I stroke her and her pace on your cock increases. I add a second finger, increasing my pace as she grinds her ass against me. My index finger and thumb grab her clit, rolling it back and forth. She cries out, the sound muffled by your shaft as you bottom out in her mouth, her nose pressed against your belly. Her body tenses, the walls of her pussy grip my fingers hard, stopping their momentum.
As her body relaxes, my fingers resume gently stroking, just enough to bring her down easy. I slip my soaked fingers from her and move to her side, bringing them to my lips and letting her watch me lick them clean. You release her head, and she lets you slip out placing a kiss on the tip before turning to me. She reaches down, fmuttering a brief complaint about being the only one nude. She pulls my dress over my head revealing my shaven mound and naked breasts. As if just realizing the meaning of her decisions, her gaze meets mine. She’s nude next to her big sister, giving her sister’s husband a blow job after being fucked by him.
Her gaze travels over my body; a little soft after 2 kids; and stops at my breasts. Despite time, and size, they sag little, still full and sensitive. She sees my nipples, hard and pointed and reaches for them before stopping. I take her hand and rest it on my breast, sighing as her thumb grazes the tip of my nipple. I suggest that if she wants we can stop now, but she shakes her head. Her free hand joins the first at my breasts and it’s my turn to sigh as she hefts them and strokes my nipples. Slowly and without breaking eye contact, as if to give me a chance to stop her, her mouth lowers to my breasts, encasing the taut peaks in her mouth, sucking gently. My hands pull her shoulders in, even as my head tosses back, moaning as she laps them with her tongue.
Unable to hold back, I pull her mouth up to mine. My tongue plunges in & ravishes her mouth, mimicking the motions of my fingers before. I pull you over and rest your cock between us, moving to continue the kiss around your head. Our lips, nibble at your tip while our tongues take turns stroking your length. Unleashed our hands explore each others breasts, flicking, pinching, tugging, stroking. One of her hands cups your testes as mine wraps around your shaft. My hand moves up and down your length gripping you tightly as I feel you begin to swell. I pull her in so that our breasts are pushed together. My hand moves faster, sliding over your slick member. Your hips thrust involuntarily and you explode, coating our breasts in semen. You collapse in a chair temporarily out of action.
She looks for something to clean up, but this allows me to indulge in another new experience. I lean forward, running my tongue over her coated breasts, leaving a clean streak. Your taste is salty and slightly sweet, she tastes like caramel, the combination is delicious. I continue to lick her clean, leaving only her nipples coated in your seed. I envelope each in my mouth, sucking hard, causing her to arch against my mouth. She gasps and moans before pushing me off. I tell her to try it, thinking that if I’ve managed to persuade her this far, perhaps she’ll go further. She laps tentatively at the covering, before devouring my breasts. She copies my action, leaving my nipples covered in cum until the end, before sucking them into her mouth. My hips buck wanting her to make me cum just by sucking on them and at the same time, desperately wanting her to finger my pussy.
She stops abruptly when I’m right on the edge and turns to look at you. I realize the cursing I heard was you, back at full attention from watching the scene in front of you. You lean down and whisper something to her. I can’t hear over the blood rushing in my head. Whatever you say encourages her and she pushes me down to the floor. I gasp, startling as my back connects with the cold floor. She pushes my legs apart, her eye meet mine again. Her fingers reach down and connect with my abdomen. As her fingers slip down, my hips arch to meet her. So slowly, it feels like torture they trace over my shaved mound and come to rest against my clit. Barely touching me she begins to circle.
My anticipation is so high that it takes no time for my first orgasm to swamp me. My response gives her confidence and even as I cry out, she begins to increase the pressure. Her fingers slip farther and stroke my swollen lips, parting them to expose my twitching core. I can feel the tip of her finger at my entrance and I start to beg, needing to feel her inside me, wanting her to fully cross that forbidden line with me. In one smooth motion she thrusts her finger into my centre. In and out, she varies her pace as she explores my centre, adding fingers and removing them, stroking my clit with her thumb as she figures out what will drive me over the edge.
At a suggestion from you she leans forward and wraps her lips around one nipple while her free hand catches the other between her fingertips. My torso lifts off the ground with the intensity of my orgasm. As I collapse, she asks if she can take it one step further. I can’t answer her, stuck in a post-orgasm haze, but you ask what she has in mind. She responds that she wants to taste me. You grin and agree but tell her she has to let you fuck her again. She agrees without hesitation and lowers her mouth to my quivering lips.
Despite her inexperience, she laps at my juices causing me to whimper. I feel her long moan as you sheath yourself back in her hot core. Her tongue probes into me matching your pace. You increase your pace as she rocks her hips back against you. You lean down, pressing your chest against her back and murmuring in her ear, telling her what a needy slut she is, fucking her own sister and brother in-law. You let out groans and curse as her centre tightens around you. She removes her tongue from my orifice and sucks my clit into her mouth, nibbling and licking like she had on my nipples. Her fingers replace her tongue in my pussy and I grind my pelvis against her mouth.
As your pace increases you find her clit in a repeat of her earlier orgasm. Rolling and pinching it between your fingers, she begins to buck mindlessly against you, fucking herself with your cock. She pulls off my clit long enough to ask you to cum in her pussy. You had a vasectomy years ago so there is no risk. You take your hand off her hip and press her face back into my pussy. She resumes her torment of my clit and I see stars as pleasure rushes through my body. Moments later, she screams against my skin as you drive hard into her, swelling and sending your cum flooding into her. I can feel her whole body clenching to match the pattern of her walls as she milks you dry.
Source: reddit.com/r/Erotica/comments/nd21op/giving_my_sister_what_she_needs_mff_incest