SRTS/Agree
From Create Your Own Story
To your surprise, they agree after a short huddle. They both nod in agreement. Neither of them has anything other than a serious look on their faces. Their natural competitiveness is definitely to your advantage. They are willing to do something they both know is wrong in order to better the other.
You look at them both and say in a serious voice, "In order for this to happen, I have to take off my clothes. Do you both understand?"
You wait for them both to nod, then continue by saying, "You can't tell anyone about this. Otherwise we will all get into trouble. Can you both keep this a secret?"
You wait for them to nod their agreed secrecy, then start to remove your clothes. Both watch you with eager anticipation as you remove everything except your boxers. Your dick is struggling for release and you see your sisters staring at the bulge. You release your dick and they both stare at it. You believe they are mentally imagining comparing the real thing to the dildo, but can't be certain. Nor to you care. All that matters is you are on the verge of having your dick sucked by two girls. It is true they are your sisters, just as it is also true that they are only twelve, but you push that into the back of your mind.
You take the dildo from their hands and set it on the nightstand. Then you lay down in your parents bed and position yourself so you are lying on your back with your head propped up by a pillow in order to get a good look at the action.
Once ready, you say, "Now each of you lay down on either side of me so you are looking at my penis." You wait to let them get into place before continuing. "You each get one turn. I will hold my finger to mark the spot where you stop."
They both nod. Then you watch as you have Sue lower her head onto your cock. The feeling of her lips is amazing as you feel them tighten around the head of your cock. Then she takes it a little bit further and you can feel her tongue, which amplifies the sensation even more. She continues to take it deeper until she gags. You place a finger against your dick to mark the spot, which is about a quarter of the length of your cock. Sue releases your cock and sticks her tongue out at Anna.
Once Sue moves, Anna positions herself exactly where Sue was and lowers her mouth onto your cock, and you are again enjoying the feeling. Rather than take her time and try to take it slowly like Sue, Anna decides to force her head down and gags. You assume Anna thinks this will enable her to take more than Sue, but aren't about to ask her. You move your finger to mark the spot and let her remove your cock from her mouth in a similar fashion as her sister had done. You hold it next to the other finger. Granted, Anna did get just a little bit more of your dick into her mouth, but you are not about to let the contest end this quickly. You are easily able to move your fingers to ensure there is a tie.
Anna asks, "Who won?" Her tone clearly indicated there was no way for her to lose.
You say, "It is a tie."
They both look at your dick and see your fingers marking the exact same spot. Sue says, "It can't end in a tie."
You smile at both of them and say, Of course not. There are things the two of you can do as a tie breaker."
Sue asks, "What do you mean by things. Shouldn't there be one tie breaker?"
You know Anna is about to say something as well, so you quickly say, "Neither of you would be satisfied with one tie breaker. I think you should both do several things and I can keep score. Each time you do something you get points. Once everything is done, whoever gets the most points wins. If you are tied, like right now, you get the same amount of points. Deal?"
You are expecting push back from both of your sisters, but that does not happen. They are too competitive to do anything else. They both nod in agreement.
You say, "First you both have to take off your clothes."
They:
