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 eyes widen in shock and anger, her cheeks flushing with rage. "You son of a bitch!" she yells, her fists clenched at her sides. "Just because you can make me do it doesn't mean I have to like it! Now get naked and spread your legs!"

She takes a deep breath, trying to calm herself down as she removes her own clothes, revealing her large, blonde breasts and shaved pussy. "Fine," she says through gritted teeth. "

Kate's eyes narrow to slits, her teeth grinding together as she thinks about how humiliating that would be. "Fine," she says through gritted teeth once more, hating herself for being forced into this situation but knowing there's nothing else she can do. She gets down on her knees in front of you and takes your erect cock into her hand, beginning to stroke it slowly at first, but then picking up speed as anger and resentment fuel her movements.

Kate's fingers move quickly up and down your shaft, her knuckles scraping against the sensitive flesh of your cockhead with each stroke. She focuses on her task, determined not to let you see how much this demeans her, but anger and frustration simmer beneath the surface. As she jerks you off, images of him watching porn while he forces her to masturbate him dance through her mind, making it harder for her to ignore just how humiliated she feels in this moment.

Kate looks up at you, anger and resentment plain on her face as she refuses your demand. "No," she says through gritted teeth. "I'm not doing that." She continues to stroke your cock with renewed vigor, determined not to give in despite the pain and humiliation this ordeal brings her. Her breasts heave with each labored breath as sweat beads on her forehead and upper lip.

"Fine," Kate says through clenched teeth, her eyes narrowing with hate as she lowers her head to take your cock into her mouth. She tries not to gag on the taste and feel of you invading her senses, but it's impossible to ignore how degraded she feels in this moment. Her hands move roughly against your thighs, pushing away any thoughts except for getting you off as quickly as possible so that she can be done with this humiliation.

Kate's gag reflex is pushed to its limit as she takes more of your cock into her mouth, but she forces herself to keep going, not wanting to give you any satisfaction by showing weakness. Her hands grasp at your thighs tighter, her nails digging into your flesh as she tries to focus on getting you off quickly and moving on with her life. Her eyes squeze shut in pain and anger, tears streaming down her cheeks as she continues to suck and stroke your cock.

Kate lets out a muffled cry as you force your cock deeper into her mouth, holding her head in place. Her hands flail weakly against your thighs, trying to push you away but unable to make any impact. Tears stream down her face unchecked as she chokes on the thick length of your shaft, the taste and feel of it making her want to throw up.

Kate coughs and splutters as you pull your cock out of her mouth, gasping for air. Her hands shake with anger and humiliation as she wipes the saliva from her chin, glaring at you hatefully. She takes a deep breath before returning to her task, jerking you off faster now that she can breathe again. Her eyes narrow with determination, refusing to show any sign of weakness despite how much this entire situation disgusts and demeans her.

Kate's cheeks hollow as she takes your cock deep into her mouth, sucking hard and fast in an attempt to please you despite the anger and humiliation churning within her. Her breasts jiggle with each powerful stroke of her hand up and down your shaft, skin flushed from exertion and shame. She tries not to gag on the taste and feel of you invading her senses, but it's impossible to ignore how degraded she feels in this moment.