Filling her head

You were already sure that the idea of her under the table during dinner would now forever be stuck in Lucy’s head wherever you were having a meal so your mind turned to other ways you could get her to be even hornier and thinking of you in her life, knowing that every meal she had with you all would most likely forever be corrupted by her own thoughts.

“You know what, I think I will save my blowjob for tomorrow. And I won’t tell you when I’ll be pumping your stomach full of my cum either” you said, starting to increase the speed of your fingers pumping in and out of her while you built up the idea you had planned.

“You’ll wake up tomorrow and know that at anytime, anywhere, you’ll be down on your knees and wrapping your lips around my cock like a good little cum slut. You could be in the shower as you get ready in the morning before I walk up behind you… You could be talking with Mom in the kitchen and I’ll put you in the same place that Mom was before, seeing the look in her eyes as you go down on your brother… Or even just as everyone has started relaxing for the night. We’re all sitting in the living room talking and you’ll just get a look from me and know, it’s right now. Right here in front of all these people” you revealed, pausing in between each scenario and giving her enough time to let the image flow through her head.

She had been staring right into your eyes as you started but even she had to close her eyes and bite her lips as the idea became too erotic for her not to picture fully in her mind.

“I’d strip you down, play with your body…” you said, pinching her nipple between your fingers before you continued just to emphasise your point.

“And then you'd sit on the floor between my legs and you would enjoy sucking my dick with an audience. We both know you would. I can feel how much the thought excites you right now and there’s no way to hide it” you added, feeling how wet she was and how urgent her breathing was becoming while your fingers touched her everywhere she needed.

“Mom would be looking down at you from my side as if she couldn’t believe what was happening but you would know she would love to switch places. Same with Sarah. She’d be by your side as soon as I utter the words but I’d make you be the only one naked and on the floor. Everyone else. Emma. Grace. Rebecca. They'd all be behind you. Watching your ass high in the air as you bobbed up and down and there would be no way to hide how fucking wet you are. They would see everything and you would have absolutely no secrets left in front of their eyes” you continued, talking more and more about how **** Lucy would be and seeing that it was clearly having a positive effect on her.

Her legs wrapped tighter around your hand and she was on the edge of her peak that you had been slowly building up and up for her to cross, knowing that now was the time to push her over.

“If I wanted to. They’d all listen to exactly what I say and you know it. I’d make them hold you in place as they each grab one of your arms or legs, locking you in place as you become my own personal cumdump. Forcing my cock down your throat and pushing deeper and deeper inside you. You’d feel me cum and filling you up so completely so you couldn’t taste anything else but me and you’d fucking love it wouldn’t you?” you stated, snapping her attention right back to the present with your question just as you felt her completely tense up.

“God fuck yes! fuck fuck fuck. Please fuck…” Lucy started to ramble, her muscles tightening and forcing her body to start rising up as her limbs went taut.

As you were straddling her, you were able to keep her pushed down against the bed but the fact that you were restraining her seemed to get her off even more, her ramblings continuing as the wave and wave of pleasure from her orgasm seemingly going on forever.

You kept up what you were doing until Lucy couldn’t handle it any longer, crossing her leg to stop your fingers still working her pussy and frantically tapping your other hand that had been on her check in an attempt to get you to stop, before almost collapsing when she hit her breaking point.

You didn’t want to risk breaking all your fingers with the strength of her thighs currently so you did as she wanted, stopping all your movement except a slight stroke of her skin below her chest, enjoying the feeling of having your sister lay there underneath you as she started her recovery process.

Her breathing was laboured for a long time and you moved to no longer be above her in case that wasn’t helping, still keeping your hand where it was on her body but allowing your other hand to become free from the leg hold she had had.

Your hand had been wet with her juices and you couldn’t help but taste her when you got the chance, getting almost intoxicated by it as you brought it closer until you found yourself licking your hand clean.

Lucy had opened her eyes to watch you in the process but did nothing to stop you going ahead with it, knowing that she would have done the same if the roles were reversed and having no valid excuse to say anything in her defense.

Once Lucy had recovered, she did seem to have a momentary moment of embarrassment where she lowered her top back down to cover her breasts but she was too tired to do anything else, staying on your bed with no signs of getting up any time soon.

“So are you happy with that rule addition or…” you asked, getting an arm thrown lazily in your general direction.

You could have dodged it but instead you just grabbed her hand and placed it in your lap, interlocking your fingers with hers and just keeping up the contact between you while she recovered.

“I can’t even think about that right now. Ask me later. Did you actually have something else you wanted to talk about or did you come in here just expecting to find me snooping?” Lucy replied, letting you do what you wanted with her arm while she lay there.

Other than seeing that she was incredibly tired and that you could get away with casually groping her chest, an opportunity you quickly took advantage of, you realised you hadn’t really asked Lucy about a few things that had been on your mind.

Some topics however were more pressing than others so you decided to choose your words wisely for what you were about to mention next.