Off her chest

“I-If it’s something you're okay with then I wouldn’t mind trying to do something together… And as long as this isn’t something my brother is forcing you to do either” Sarah replied, trying to phrase this to make it sound like it was 100% Emma’s doing before deflecting to put the blame onto you.

“It’s something the both of us have agreed on, not just Emma. From my point of view, I’m obviously getting the better deal but Emma’s also the one getting something out of it if you ask her” you answered, revealing your opinion to Sarah before Emma gave her own.

“He’s right, it was a joint decision. I’m not sure if Max mentioned the reason we’re telling you but it's because you’re the one the both of us trust the most but that goes both ways. If you are happy to do it like you said then that's good but we don’t want you to not trust us or to **** you into anything just because you didn’t feel comfortable speaking up” Emma explained, giving Sarah an opportunity to speak up if she wanted to refuse.

You could tell from the start that Sarah didn’t want to refuse the offer but she also looked unsure of how to proceed given that she didn’t want to make her feelings towards Emma too obvious. Out of all the plans you and Emma had made, you made sure that the final decision would be Sarah’s to make but knowing your sister and her stubborn personality, you decided to help her just a small amount.

“I know it’s a lot to think about given what we’ve just told you but we can go as fast or as small as you want. We could even do a sort of trial period if you want. Try a thing or two and if you then don’t want to carry on then there will be no hard feelings” you offered, extending Sarah an olive branch.

Both Sarah and Emma gave you a quizzical look at your proposal for their own different reasons but it seemed neither noticed the other's reaction. Emma seemed confused at you going off-script while Sarah must have wondered why you were helping her even more than you already had. Still, the final decision rested on Sarah and before the silence started to get awkward again, Sarah managed to speak up.

“If we were to do a test run, could we do something now?” Sarah asked, making a bolder leap forward than you were expecting her to take before she retreated back into her shell when she realised what she had just said.

“We can do. I’m happy to try it if you and Emma are?” You replied, want to put Sarah out of her misery as soon as possible before waiting on Emma to give her opinion.

“Sure!” she added, sounding surprised that everything had gone as well as it did.

The three of you started smiling between each other that this was actually going to happen but as the seconds passed you realised you needed to be the one to direct everything or else nothing was going to happen. You cleared your throat to get both Emma and Sarah’s attention before deciding the best position to start with.

“Ahem, so this might be awkward at first but you two need to follow my lead” you announced, moving to the edge of your bed before leaning over to grab some pillows and placing them side by side on the floor.

It seemed pretty obvious what your intentions were and neither of them had any complaints as they hesitantly made their way over to the spot on the floor, Emma supporting a look of excitement while Sarah seemed to have a bit of nervousness mixed in. You needed to make your moves and commands quite quickly to avoid there being any uncomfortable atmosphere so without any warning, you stood up and unzipped your jeans, pushing both your boxers and your jeans down at the same time before sitting back down.

Both Sarah and Emma’s eyes widened when they saw you were fully erect but it had been pretty hard to hold back when the conversation was about you getting pleasure from two girls at once. Again you needed to keep momentum so with Sarah sat on the left and Emma to her right, you reached down to grab Sarah’s hand. She looked momentarily startled but she let you place her hand around your shaft as you watched the grin on Emma’s face widen.

“I know this may seem weird but trust me, she isn’t going to judge. She's probably going to want you to go further if she gets turned on” you revealed with a smile, causing Sarah to turn towards her while Emma blushed at your admission.

While Emma was distracted with the attention Sarah was now giving her, you grabbed her hand as well and placed it below Sarah’s. Neither of them were moving their hands yet and just kept them stationary on your cock, something you desperately wanted to change. You started by placing your hands over theirs and guided them to move at the same pace, slowly loosening your grip as they continued to move their fingers up and down your shaft without any assistance.

You knew that Sarah would have likely seized up if Emma had only been watching for this first time and the fact that you had got both of them to start stroking your dick at the same time so quickly, made you think your decision was correct. You were also hoping either Sarah or Emma would step up and be less passive about the experience and from what you knew of the two, it was likely that Emma was gonna be the one to try and push things further.

“Oh god, I can’t believe I’m doing this” Sarah muttered, not stopping her hand as she continued to stroke you, her fingers pressed against Emma’s who you could see was starting to get heated up.

“I can't either. Seeing you like this is a dream come true. You wouldn’t imagine how many fantasies I’ve had about this” Emma replied, getting heated up.

“Really?” Sarah asked back in surprise.

“Trust me, it always starts with you being on your knees in front of your brother, him using your body for his own pleasure while I’m **** to watch off to the side. It changes a lot. Sometimes I’m sat next to Max kissing him while you jerk him off. Sometimes I’m down here looking up and kissing… There's a lot I end up imagining” Emma explained, mumbling towards the end as she almost revealed what she thought was too much.

The words she missed were easy to figure out given the context and even Sarah was able to pick up on what Emma had missed out.

“You think about me like that?” Sarah asked, shivering as she waited to hear what Emma would say next.

“Of course I do. Max has told me some of the details about what the two of you have done and just thinking about all that happening while I’m only next door just makes me tingle all over. Don’t you feel the same when you're on your knees like this? When Max has free reign to choose whatever he wants you to do?” Emma questioned back, getting a subdued nod from Sarah while her hand slightly picked up its pace.

With Emma’s conversation heating up the room, the sound of heavy breathing started to fill the room and it seemed to be enough to get Sarah to speak her mind.

“I can make your fantasies come true if you want to try something else” Sarah added, the idea of kissing Emma outwaying her embarrassment as it remained at the forefront of her thoughts.