Surprisingly, sort of?

Your sister was the first to enter your bedroom. She climbed onto your bed belly first, and looked at you as you locked the door behind yourself. "So how long have you owned them?"

You waste no time and drop your pants, kicking them to the side as you answer, "dunno, but now that we both know I own your holes I'm going to get my use out of them." You moved over to her as she pulled her phone from her chest.

"Just let me know when you're done, I wanna go to bed soon." Sarah huffed.

Although she didn't sound very upset, you agreed with rushing things. Her vagina was heavenly. Within a few seconds you had moved to behind her, your cock head teasing at her lower lips. You noticed as you began to push in that your sister had opened up some porn on her phone.

“Oooh that looks good,” you said as you pushed forward, parting the pink sea and sinking into her warm depths. She grunted and nearly dropped her phone before tightening her grip.

“Y-yeah? This one’s my favorite.”

You began pumping your hips, moving in and out while the moans from the video played, it was all pretty quiet and intimate. The smell of your sisters’ perfume, the deep breathing from both of you that hitched every few thrusts; Even the feeling of her walls tightening around you was almost like a comfort. This possessive feeling you began to hold finally came to a peak as your sister began thrusting back into you.

“I’m thinking of how to keep you from using my holes without my permission,” You half moaned out.

Sarah tightened her vagina’s grip, practically turning it into a vice as you worked your cock faster, feeling an orgasm building. She didn’t reply though, as you continued. “My dick is the only thing you can shove in there without my direct permission,” you felt your orgasm fast approaching now, picking up your pace as you pound the head of your cock against her womb, “you can masturbate, but only with me present.” Your release was just on the edge now, you began to push with all the **** you could until finally, you pushed hard against your sister’s ass, cumming deep inside. Both of you moaned out, your sister shuddering and dropping her phone onto the pillow, her only reply was “fuck yesssss.”

You continued to twitch inside of her, letting yourself stay buried even as you shrank. “And your boyfriend can’t have any of this.” You finally finish.

Below you, Sarah shuddered before mumbling something.

“What was that?” You questioned.

“...I said I haven’t had any since Benny,” She was practically vibrating below you, a mix of nerves and post orgasmic bliss as you registered her words. She hasn’t had any sex since her first boyfriend two years ago if she’s being honest. You weren’t sure how truthful it was but you had no reason to suspect her of lying about it now. Despite this, she had at least six other boyfriends since then, so it was surprising more than anything.

“Really?” You couldn’t help but question.

She wasn’t facing you as she nodded her head, “I would really like to masturbate without your permission though...” She weakly protested, “I won’t be able to ask you all the time when I need it.”

You felt yourself growing hard again because of her words, “what will you do for me to allow that?”

You held your breath, she seemed to consider this with a surprising amount of seriousness, you expected her to immediately shoot down the proposal and perhaps a verbal fight would ensue; but not this. She pushed you back until you were outside of her, twisting around to face you. Her face was red, her face a mask of worry as she spread her pussy lips for you. “Well,” she mumbled, buying as much time as she could. You simply waited, not penetrating her as you sat on your knees above her. “...what if I gave you a blowjob once a day to keep masturbating without asking?” She finally proposed.

You mulled over the offer, leaning forward and teasing her labia with the head of your cock in a mock contemplation. You didn’t own her mouth, even if you could this was an amazing suggestion she made. Later on you might take her mouth as your own but for now, this was as delicious as could be. You pushed forward until you were once again balls deep, listening as she suddenly gasped and wrapped her arms around you. “Hmmmm.”

She seemed to get frustrated at your obvious press for time, “oh come on, that’s like, an amazing offer with how I look.”

You smiled and said “I want to get them whenever I want and make-out rights,” as you started to thrust fast and shallow, hearing the squelch of your union.

She shuddered and her eyes seemed to scream desire briefly before vanishing behind her lids. She wrapped her legs around your waist and began to rock in circles on you as a conflicted look came upon her face.

You ignored her indecision and decided to deepen your thrusts, pulling back and rocking the bed with every thrust forward. Whatever her answer, you were gonna cum inside this pussy for the third, and final, time tonight. You felt your balls slam into her butt, the power over her practically pushing you closer to the edge than the actual sex.

You feel your sister orgasm, and with that she seemed to come to a decision. “Fine.” That one word was all you needed, feeling your balls tighten and cumming harder than any time in your life. You couldn’t help yourself and shot forward, taking her lips with your own as you dumped your load into her.

The both of you came down from your respective orgasms practically hugging. She looked both frustrated and relieved as you pulled yourself from her, laying abreast and faces flushed from exertion. Sarah looked as if she wanted to say something, but stopped herself before turning away. After a moment you hear her quietly whisper, “goodnight.”

You smiled to yourself and replied in the same volume, “goodnight.”