1. Sara's Car Trip Ch.5


    Date: 1/19/2017, Categories: Fiction, Incest, Author: Unknow user, Rating: 90.2, Source: sexstories.com

    vacation ever." Sara cooed. "I looked at her. Like my tan?" She winked at me. I said, "Best I've ever seen." Dad says, "The sun is bad for you. It'll give you skin cancer." Mom set herself down under the shade of the cabana. "Your dads right." "I do this once, maybe twice, a year." "I love the way it looks." "Looks can kill," says dad. ********** "So what's your Surprise?" I stood there yelling at a closed door. Sara had run into the bathroom slamming the door behind her the moment we stepped in, locked it. When she next appeared, she was out of her suit. "First," and she held it out to me. "You got to put this one in...I'm ready." She was holding the last, the largest, butt plug. She was turning it in her hand as I backed away and sat on the bed. I tapped the mattress. "Get on all fours." She jumped onto the bed and faced away from me, wagging her ass at me. "Wooof! Rrrrr." "Good doggy, I patted her ass." She wagged her 'tail' at me. The butt plugs were these clear plastic short cylinders, that flared at the end. The one end was flat so they wouldn't 'show' when you wore them. This one looked like a short cock, it looked very thick. I had bought three, each larger than the other to gradually 'loosen' up my little sister for an ass-fucking that was implied in the whole thing. I got hard just thinking about it. We had tried a little ass fucking earlier, but she was too 'tight.' The first plug was a half inch, then one inch - the one she had in her right now. And it felt so ...
    good when I fucked her, I could feel the flared end press along my cock as I slid into her. She loved the feel and it was making her cum constantly, even when we were just walking along, from the feel of her swaying hips and thighs sliding together. But this one was two inches diameter! It only needed to be in her a day or two. I got hard thinking about her early promise, 'It'll be worth it.' I was trembling and breathing so hard as I settled behind her on the bed, looking up her ass across her shoulders, her dark hair touching the bed. I pulled on the one still inside her as she was positioned on all fours, her ass backed into my face, it resisted then released. Her ass was bright red, this gaping little hole; and her bare pussy pouted out below, this pink little line. What was I doing here? It was all so unbelievable. "Mmmm such a nice little rose," as I pressed my finger into her. She looked back frowning, "Quit naming my ass Jason." I took my finger out, sniffed it. "Ewww. Pervert!" "No no it smells," I sniffed again. "Stop it!" She was reaching for me. "Mmm, nice, Good." I picked up the larger clear plastic plug, held it out so she could see, her eyes wide. "This isn't just twice as big you know, one inch to two inches. It's three times as big, pi times the radius. 3.14 times one inch. THREE inches. That's the circumference. It's THREE times bigger when I push it in." "Quit doing math." She paused and said quieter, "Just, Put it in." I set it at her rose, touched her open ...