Panicking, you tried to push and pull your way out of his grip, but he held your arms tight against your body. He came to a rest against the brick wal... deep in the shadows of the alley, your back against his chest, body heaving with fear.He whispered closely in your ear now. "I am going to uncover your mouth, and you're not going to say a fucking word. Nod if you understand."You nodded.He took his hand off your mouth, and reached into his pocket. Putting what appeared to be a weapon away, you. I promise." I told her and meant it. I added more spit to Mom's fingers and she added a third, and finally a fourth. Lisa was writhing and mewling into Mom's pussy by this point, and I figured she was as ready as she would ever be.I pulled out of Mom's warm wet mouth, and Mom spread Lisa's ass cheeks with one hand, and guided me in with the other. As soon as the tip was firmly pressed against my sister's little brown hole, Mom started sucking on her clit. This caused Lisa to jump, and her. To just let go."She took a deep breath and pushed her lips over the head and then off, looking up at me."Is that good?" She asked. I just nodded, and she did it again, but let her mouth linger on it for a moment and I felt her tongue go around it.She pulled off and looked up to me with a smile. "It's exciting, but scary. You won't do anything, will you?" No," I laughed "Nothing can happen that fast. How long does it take YOU to cum?"She looked up. "I don't know. I really haven't yet. I know. She then went into the kitchen and took a wine glass out of the cupboard. Twirling the thin stalk of the glass between her fingers, she made her way upstairs.She went into her bedroom, kicked off her rubber soled nurse shoes and went into the bathroom and brushed her teeth. Doing the overnight shift, she had drunk a lot of coffee and it always left a taste in her mouth.Taking the wine glass, she then walked down the upstairs hallway. She looked in the guest bedroom and found it empty. Likewise,.