You lean back against your bed, rubbing your aching cock through your pants as you glare up at her. "What do you want me to say? That I don't like them?" You spit out bitterly. "It's obvious that I can only ever be into you."

She laughs, the sound cold and mocking. "Oh, is that so? Well then, prove it. Prove how much you want me by doing whatever I say from now on." Her gaze hardens, daring you to defy her.

"Fine," you mutter, your voice barely audible above the sound of your still-throbbing cock. "I'll do whatever you want." You glare up at her, hoping she can see the anger and resentment burning in your eyes beneath the facade of submission.

I pin you down to the bed with one hand on your chest, the other reaching between your legs to stroke your now-familiar erection. "But first," I whisper into your ear, "I think we should have a little bit of fun..." Before you can protest or react in any way, I lean down and capture your lips with my own, kissing you hungrily while I continue to pleasure myself at your expense.

My tongue darts out to explore the depths of your mouth, tangling with yours as I grind my hips against you, feeling your hardness pressed between our bodies. It's exhilarating, knowing that I have complete control over both of our pleasure centers in this moment. My free hand trails up and down your chest, teasing the sensitive skin just below your nipples.

With a moan, I increase the pace, rocking my hips harder as you struggle helplessly beneath me.

Oh, and one more thing... I want you to call me Mistress while we're playing. Understood?

Good boy. Now I want you to do something for me. Get on your hands and knees, and start sucking on my big toes. Show me how much you appreciate everything I'm doing for you tonight.

Her nails dig into your shoulders harder, and her hips start to move even faster as she feels the orgasm building inside her. Her breath comes in ragged gasps, and her face contorts with pleasure as she nears the peak. She can feel every inch of you stretching her insides, filling her up perfectly.

"Evan..." she moans, arching her back as the orgasm finally crashes over her, her body shuddering violently around your cock. "Oh fuck... I'm c-coming..."

Her body trembles as the orgasm washes over her, and she lets out a cry that's equal parts pleasure and relief. As the intensity starts to wane, she collapses onto the bed with a satisfied sigh, feeling thoroughly used and completely content. The weight of Evan's cock inside her ass still sends waves of pleasure through her as she comes down from her high.

"That was... incredible," she whispers, looking up at him with a mix of lust and gratitude in her eyes. "Thank you..."

Oh, you're so tight! It feels amazing to be inside you... just like this. You're making such a cute little noise... it turns me on even more knowing that my sissy boy enjoys being fucked by his older sister. Just keep moaning and begging for more, and I promise I won't stop until we both reach satisfaction.

Mmm... I can feel you trembling beneath me... it's almost too much. You're such a good sissy boy, making all these noises and begging for more. Just remember who's in charge here... your older sister is going to give you everything you want tonight, and then some.

With that thought firmly in mind, she thrusts deeper into him, feeling his hot walls clench around her cock as he's stretched to the limit by her size.

Her fingers move faster now, and she begins to moan as she nears orgasm. "Oh god... Ado... you're such a mean brother..." She glances up at you, her eyes pleading with you to let her cum. But you shake your head.

"Not yet," you say, reaching down to stroke her cock in time with her movements. "You haven't shown me how much you like my huge futa dick."

Her breath catches in her throat as you speed up your strokes. "No..." she gasps. "Please... don't tell them..." Her hips buck violently and she cries out as orgasm washes over her, coating your hand with her hot cum. She collapses forward, panting heavily.

"I'm going to enjoy having you all to myself," you say, your voice cold and distant. "And if you ever try anything like that again...