She tried to spit it all out, but there was so much, she ended swallowing some."That was amazing, but did you mean for me to cum in your mouth?" Zach ...sked his sister after she got to her feet. He noticed her surprise when he started to shoot his load into her mouth. She still had a little cum on her chin and she used a tissue to wipe it off. "I told you I was about to" he added."I didn't know what you meant" she said in a shy voice. The whole thing was a bit overwhelming for her, but it wasn't. We saw each other at lunch and a couple of times during the day before the accident, not to mention before and after school since we often rode together. We hung out some in the evenings and on weekends, but not all the time. The rest of the time, she could be hanging out with anybody. For all I knew, she often flirted with Brendan and other guys. I mean, she wanted to put on appearances that she was interested in guys and not girls, so maybe she was just using the flirting to keep the charade. You move my hands away from your body, I take a step back and you whisper in my ear ‘Your turn.’ in a firm, controlling voice. I look at you and drop my head and eyes to the floor. ‘Yes Mistress.’ I say submissively. You put the straps of my one piece between my chest, exposing my small perky breasts with my pierced nipples. You turn the water on again, getting my breasts and body wet. You stop and tell me to turn around. You embrace me and softly kiss my lips, our breasts pressed against one. “Ok what is it you want to know” I said apprehensively. I pinched myself, even though my younger sister had just caught me jacking off into a towel, looking at her toned legs and stomach and the curve of her ass made my cock twitch.“Well I just wondered did you cum because of me?” as she said this a coy smile began to play around her lips, shit! I didn’t expect her to be so direct! Do I be honest or lie through my teeth?I was leaning towards the lie through my teeth part when that smile.