He backed up a couple of steps but found he was dragging me along with him, because I wouldn't let go of his dick. Spit was dripping from my mouth. I ...as enjoying every stroke of him slipping around in my mouth. I kicked my leg up on top of a trash can so he could fuck me deep down in my pussy.We fucked like street dogs. No etiquette and no bed. Just straight-out, low-class, raw, back-alley fucking; and let me tell you, it was sooo good! He laid me in the dirt, but I quickly rolled him on his. “Oh fuck sis, you give a hell of a blow job,” I tell her.I let her suck on me for a while more, enjoying her talented mouth. When I started to feel some pressure build, knowing I was going to blast another load soon, I decided I wanted to try her 19-year-old cunt. I grabbed her hair and pulled her off my dick. I pulled her to the bed and threw her on it. I looked at her long legs in the tights she wore as part of her work uniform, with a short skirt, and belly shirt.I flipped her skirt over her. Mike had sex with Marybeth. I promised at the time not to ever tell anyone. That's why I didn't admit to knowing. That's where he learned that stuff. But we taught each other how to kiss. I know it seems weird being brother and sister. But you know Sheila and Gloria taught each other how to kiss. It's no weirder than two girls teaching each other."Emily was listening closely. She didn't seem weirded out. "You got to understand, that me and Mike are almost like one person in some ways. So we. "Dad went back to his game and saw the last eleven seconds of it, whichtook fifteen minutes. Mom gathered the photos and said she had a headacheand went to her room. I had a lot to think about, knowing I would neverbe able to keep the promise I made to my father.The day after my parents talked to me, Dad made a point of spending moretime than usual with me, doing guy things, hoping our time together wouldmake a difference in how I thought of myself. We did more than just playball. He felt it.