She commands a week on the edge

"In one week" Johanna began, "you will both meet me at my house. You will arrive at 6 PM, no more than fifteen minutes earlier and not a single second later or this all ends. I go back to being just your sister and you and your girlfriend spend the rest of your lives aching for my touch and never having it."

You nodded vigorously. Your sister turned to look at Carrie who was also nodding.

"You", Johanna addressed your girlfriend, "will spend the next week waking my brother up with a blow job for thirty minutes. Every day at lunch you will jerk him off for thirty minutes. Every evening you will ride him, you on top, until you are exhausted. I understand if my pitiful brother may not excite you enough to get off, even when you're riding him like he's your fuck toy. Just imagine that it's my fingers or my tongue inside of you." You saw Carrie shake with desire, and heard her moan as her eyes went glassy. She was clearly imagining that right now and just the thought had brought her to orgasm. You felt a tinge of excitement at the idea of all the sex, but sex with your girlfriend felt less exciting now. She now turned to you.

"Your girlfriend has already proven her devotion to my will, so she gets as many orgasms as she can handle this week. You failed to prove yourself.", she said to you in a flat tone.

"But you said you expected me to...", you started to interrupt. Your sister gave you a stare that caused you to cower under her gaze, but also caused your erection to grow even harder. She clearly did not tolerate your interruption. You shrank back under her gaze, feeling like a small, insignificant insect.

When she began again her voice was cold, "Just because I expected you to fail doesn't change that you failed. But you will not fail this time." Her voice shifted, becoming seductive and enticing. "Every time your girlfriend sucks you off, strokes you or fucks you, you will imagine that it is me. I know that is the only way you will stay hard long enough for Carrie to finish her tasks." As you pictured fantasizing about your sister during the sex it suddenly became much more exciting. You could feel your cock getting hard as you imagined her lips wrapped around you, her soft hands stroking you. You could feel yourself getting close to orgasm just at the thought of fantasizing about your sister.

She then continued, her eyes now becoming dark and intense. "You. Will. Not. Cum.", she accentuated every word. It was not a request, not even a command. You didn't even consider asking what the punishment would be if you failed. Her eyes, her voice and her beyond amazing body all worked as one to write the words into the very core of your mind, body and soul. Her total control over you brought you to heights of arousal that should have made you cum. Every part of you obeyed your sister and you just became even hornier with out release. Your sister was perfection incarnate, and the knowledge that she held you in the palm of her hand was an aphrodisiac beyond compare. You were hard as a rock, your body trembling with need, but you would not cum until she gave you permission. The sexual tension was unbearable, but the look of triumph in her eyes was worth the ****.

She finished your instructions in her usual, sultry tones. "Not even a drop of precum until I tell you that you can cum for me. When you come to my house and you drop to your knees to worship me, then I will let you come and I want you to release all the arousal your fantasies of me have built up. You will experience a release in that moment that no man has ever known. You want me so badly, you are so helpless against me. You have no chance of resisting my commands."