Use her like she wants

The rational part of you wanted to stop the blowjob so that Sarah could let herself go without worrying about you but that logic was something you would have applied to yourself and not to her. You knew she wanted to be used like a sex toy and adding anything to make that fantasy a reality would likely make her more excited instead of the opposite.

You could tell from her face and especially the glassy-eyed look she was showing, that she was getting close and in an attempt to push her that little bit more to get her to reach her peak, you used the same trick you had used on Mom earlier.

You were already essentially using her mouth as a fleshlight but you got her attention by slowing down and stroking her cheek, seeing her eyes focus back on you before you carried on with the plan. Instead of picking up speed, you made your thrusts more deliberate, raising your hips up off the bed when you pushed her down so that your cock went further down her throat every time you moved.

It didn’t take Sarah long to catch on to what you were doing and you felt her fully relax her throat in an attempt to let you do as you pleased. With her help, you were quick to reach the point where Sarah was able to fully deepthroat your cock. Her mouth felt heavenly like this and every time she swallowed you could feel her throat pulsing around the sides of your shaft in a way that felt like she was trying to milk you dry.

You were starting to hold her head down for longer when Lucy must have up her intensity and Sarah finally seemed to tense her lower body, her ass raising higher briefly until Lucy **** her back down onto her tongue to keep upping the pleasure for her. That only seemed to make Sarah squirm more as her thighs locked around her sister’s head but from your grip on her head you weren’t seeing any resistance.

Her throat still felt relaxed to you so after pulling back one more time, you let your cock push as deep down her throat as you could go and held her in place. Sarah’s eyes widened and it almost looked like they were going to roll back into her head, seeing that she was completely out of it and moaning as if she no longer had control of her body.

With both you and Lucy pushing her higher and higher, Sarah eventually reached a point where she could no longer keep up with the pleasure and as if she was a puppet who had had its strings cut, her legs fell to the bed and her body seemed to go slack.

As much as you had been enjoying the feeling of Sarah’s throat, you quickly pulled her off your cock for her own safety. Lucy also briefly struggled to get out from under her sister as her weight had fallen on her but you were both soon staring down at what looked to be an **** Sarah.

You could see her eyes were closed and while she was lay face down, her head was tilted to the side so she could breathe after you had pulled back. You could see her chest rising and falling in time with her breaths so you knew she was fine but it still took a few seconds for either of you to speak up.

“I think we broke her” Lucy commented, making you look up for the first time and see that Lucy’s face was clearly soaked with Sarah’s cum, making her look like she enjoyed every second of licking Sarah’s pussy.

Whatever she had been doing while you were focused on Sarah’s mouth had clearly had an effect on her and while you did want to ask for details so you could maybe learn a thing or two, making sure Sarah was okay was your main concern first and foremost.

“Yeah I don’t think I’ll be pushing her that hard again for a while…Let’s try and get her on her back” you suggested, getting a nod from Lucy who came up closer from the foot of the bed.

You both tried your best to carefully turn her over and you ended up pulling her closer to the top of the bed before placing a pillow under her head, knowing for a fact that she was now fast asleep after all that movement had done nothing to wake her up. Even rolling her over had done nothing so you felt it was fine to tuck her in under the covers without the risk of her waking up in the process.

“You think she’ll be okay?” you asked, getting slightly worried about her now that you were taking everything in.

You had felt in control of the situation right up until that point and even then, it wasn’t like Sarah was struggling to breathe.

“Trust me, she’ll be fine. I think I was the one who pushed her a bit too far, not you.” Lucy replied looking over at Sarah, alleviating some of your concerns.

You had placed Sarah on one side of the bed and if someone walked in they would think she was sleeping peacefully with a blissed out smile on her face, one that also helped to brush off some of the more negative emotions you were feeling about the situation.

“So… she didn’t make you cum did she?” Lucy asked, making you look down to see you were still rock hard despite the circumstances.

“Err no, she… whatever you were doing at the end really got her going” you replied, slightly stumbling over your words as you hadn’t expected Lucy to be that direct.

You watched Lucy’s expression as you told her that and she seemed to quickly flip from a smug smile to a look of embarrassment, wanting to be proud that she had made Sarah cum like that before her own thoughts got in the way.

“If Sarah remembers what happened when she wakes up, I’m pretty sure she’s gonna want this to happen again so I don’t think you need to be anxious about anything. It sounds impossible but I think she's gonna love her big sister even more than she already does” you joked, trying to keep her feeling positive about the experience instead of second guessing herself.

“Anyway, that wasn’t my point. Do you want a hand with that? I’m sure you’re feeling a bit pent up” Lucy asked, looking down at your erection that stood up between you.

After having made sure Sarah was fine, getting some relief hadn’t been on your mind but with Lucy asking you point blank, you weren’t quite sure how to answer.

At first, you thought she was doing this to help with your needs but as you were considering your answer, you could see that she was getting more agitated about hearing your answer, making you now certain that she was selfishly hoping you would say yes to her proposal.