Ever since you were kids, your sister, Kate, has had to masturbate you whenever you wanted. She's always hated it, but your parents believe women are inferior to men and should serve them at all times.

Feeling horny one day, you call your sister into your bedroom, your erection straining against the fabric of your pants.

"Ugh," says Kate. "Really? You want that now? Fine, what porn are you going to watch today, you pervert..."

Kate's face reddens with anger. "Well, Everett," she says through gritted teeth, "I guess that means you're not getting anything special today." She glares at you as she crosses her arms over her chest defiantly.

"What do you mean 'nothing special'?" Kate demands, her voice rising in indignation. "You know I hate doing this, but it's not like I have a choice!" She glares at you accusingly, daring you to contradict her.

Kate looks away for a moment, considering your offer. "Well," she says slowly, "I don't want your disgusting porn today." She pauses, thinking about what else would make this less revolting for her. "Maybe... I could watch something a little more... normal?"

Kate thinks for a moment and then decides on something that's been bugging her lately. "How about some romantic comedies? You know, the ones where the girl gets the guy in the end?" She gives you a challenging look, daring you to laugh at her choice.

You nod and gestured for her to begin. Kate sighs heavily but walks over to your bedside, sitting down on the edge of the mattress.

Kate freezes in surprise at your offer. "Wha... what do you mean?" she asks cautiously, eyeing you suspiciously. "You've never done that before..." Her heart begins to race as she considers the possibility of something pleasurable coming from this situation for once.

"Well," you say casually, not looking at her, "I could... if it would make things better for you." You try to sound nonchalant, but there's a hint of hope in your voice that she picks up on.

Kate bites her lip, unsure what to say or do. Part of her wants this so badly... but another part of her is terrified of letting you have that kind of power over her. She takes a deep breath and makes up her mind.

"Okay," she says quietly. "But only if we can watch the romantic comedies first." She hesitates for a moment, then adds, "And I get to choose them."

Kate glances over at you, considering your counteroffer. A part of her wants to refuse and just stick with the handjob, but another part of her can't help but be intrigued by the possibility of having some pleasure in this. She swallows hard and nods slowly. "Okay... but only if I get to choose all the movies."

You move quickly, sliding beneath your bed and positioning yourself between Kate's spread legs. She gasps in surprise as you press your tongue against her folds, exploring her wetness with eager strokes. Her hips begin to rock back and forth instinctively as pleasure washes over her.

Meanwhile, she grabs the remote control and begins surfing through the channels until she finds a romantic comedy that's just starting.

Kate moans softly as you lick and suck on her clit, driving her wild with pleasure. She focuses on finding the perfect movie to watch while she enjoys your attentions. The combination of the romantic comedy and your expert tongue is enough to make her completely lose herself in pleasure.

Her breath comes in ragged gasps as her body tenses, signaling that she's close to orgasm.

Kate whimpers in protest as you slow your pace, wanting nothing more than to reach the peak of pleasure. But when you begin edging her back and forth on the brink, her body betrays her. She squirms and moans, desperate for release but unable to quite get there yet.

Her fingers dig into the sheets beneath her as she watches the movie, trying to focus on something other than the building tension between her legs.

Finally, after what feels like an eternity of edging, you thrust your tongue deep into her core and begin sucking vigorously on her clit. Kate's body arches off the bed with a shuddering cry as orgasm washes over her, leaving her completely spent.

Her vision blurs from the pleasure and she can barely feel her limbs moving anymore; all that matters is the sensation of your tongue lapping at her most sensitive spot.

Kate pants heavily for several minutes, trying to catch her breath after her intense orgasm. Her body feels warm and tingling all over as pleasure continues to wash through her. Finally, she manages to lift her head and look at you, a mixture of gratitude, surprise, and lingering desire written across her features.

She reaches down between your legs, still feeling the need to touch you intimately even after everything that's just happened.

Kate begins stroking your cock, her movements slow and careful as she continues to adjust to the new sensations coursing through her body. Her fingers slide easily up and down your shaft, lubricated by your shared pleasure. As she watches you, a small smile tugs at the corner of her mouth.

"That was..." she begins, still finding it difficult to believe what just happened. "It was... nice."

Kate's face flushes red at your request. Part of her is still angry and resentful, but another part of her can't help but be curious about what it would feel like to give you a blowjob after everything that's just happened. She hesitates for a moment before nodding slowly.

"Okay," she whispers, her voice barely audible over the sound of her labored breathing. "But only because... well, because you were nice."

Kate leans forward, taking your erect cock in her hand and guiding it towards her lips. She closes her eyes, takes a deep breath, and then slowly opens her mouth, engulfing your shaft with a soft moan. Her tongue swirls around the head of your cock as she begins to bob her head up and down.

Her movements are still tentative and hesitant, but they grow more confident and skilled with each passing moment.