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My Sisters’ Tits

Date: 5/11/2017, Categories: Fiction, Cum Swallowing, Incest, Teen Male/Teen Females, Author: SquattingEagle, Rating: 95.1, Source: sexstories.com

suddenly. I looked up, to see who she was talking too. It turned out she was addressing our sister. “No... I... didn't say anything” Emily stammered, almost whispering. She had a quaint expression on her face, as if she was scared or about to cry. “I'm sure you were going to say something” Jenny pressed on. “What is it?” There was clearly something on her mind, and though she might not want to, Emily had to speak up. “It's not bullshit,” she blurted out, her cheeks all flushed. “Your breasts just haven't grown because you’ve been doing it all wrong. I could have told you it wouldn’t work that way.” I looked at Emily in disbelief. For weeks she had known about our wager and hadn’t said a single thing. Only now, after we were finished, did she tell us we did it wrong. “What are you talking about?” Jenny asked. “It doesn’t work like that.” Emily explained “The way you were rubbing his sperm in, it doesn’t work. You have to take it... in... You know, swallow it” “Eew!” Jenny exclaimed with disgust. “You’ve got to be joking” “No it’s true, honestly” Emily said softly, her eyes averted. “I still don’t believe it. Prove it first, and then I’ll believe you” “You can’t prove it like that” Emily said. “You can’t just swallow cum for only one tit; they'd both grow at the same time.” Jenny looked at her sister for a minute, a mischievous smile on her lips. “You know that’s not a problem” she said mysteriously. Emily gave Jenny a blank stare and asked what she meant. “Well, your tits ... are just as big as mine. So, if you... swallow... his cum for a month and your tits have grown more than mine, we have proven it works. I’ll admit that you're right and let you have this 50 dollar bill. Deal?” Jenny said holding up the banknote I just gave her. I realized my sister had just volunteered my services without even bothering to ask for my consent. I guess she assumed I would go along anyway. She was right. “Why would I have to swallow it? It's you who started this bet!” Emily protested, rather weakly. “Gross! I don't want big breasts badly enough to do that! Besides, I said it didn't work. It was you who said it did, so it should be you who has to prove it.” Jenny's logic was obviously flawed, but Emily said nothing and only shook her head, barely perceptible. “I know you want to, Emmy” Jenny whispered, deliberately loud enough for me to hear. Emily flashed an angry look at her sister. It was only a fraction of a second, but I saw it and I knew what it meant. There was something between the two, something Emily wanted to keep secret. “Don’t act like you don’t know what I'm talking about” Jenny said. “You can’t!” Emily hissed and threw another angry look. “I never...” “I know you’re lying,” Jenny continued, ignoring her sister’s pleas. “You’ve been all over me every time Tom left our room, knowing I was covered in cum. You’ve been dying to taste it right from the source, haven’t you?” “No” she whispered, looking away. Emily was a poor liar, and she knew it too. She ...