It was when I realized I had to buy things for her. She was my sister-bitch.I had to take care of her.“We need to go to the pet store,” I panted. ...“There’s so much I need to get you.”She nodded her head, her eyes glossy with excitement. “Yes!” she barked. “We have to.”She bounced on her knees in the seat, whining. Her excitement was enthusiastic.I started my car and bucked out. She had her cheek pressed against the window. I rolled it down for her. I smiled as she thrust her head out. Her floppy. I touched her clitoris and played with it like it was a prized toy. I played with her labia, inserted my finger and finger fucked her. She started yelling, “Ooh aaagh. Don’t stop please, please don’t stop. Fuck me, please, I beg you”. I still didn’t yield. I wanted to prime her.I then started licking her pussy with my tongue. Lovely juices were flowing all over, she was so wet. She was twirling and twisting with joy, unable to control. She pulled my hand and then caught my dick. Without a word,. Parking in front of her house, I knew what alternatives I’d offer her. Marie answered promptly to the ringing of the doorbell, inviting me inside. Kathy trilled a greeting, as she skipped down the stairs, backpack slung over one shoulder. “Bye, Mom! See you tonight!”, as she hugged Marie, and gave me a smile full of promise over her mother’s shoulder.We headed out to spend the morning at the zoo. Kathy led us about, a sort of caramel colored wide eyed random motion generator. As she related,. Her lips quivered as she spoke, and her fingers slid down my throat to rest on my chest, seeking out the beating of my heart. We melted into each other slowly, the taste of one another stirred by the cautious touch of our tongues. Her breasts swung against my chest as she perched over my hips and my hands found their way to the sides of her thighs. She looked down into my face as she straddled me, rubbing herself up and down the length of my growing hardness. She knew this was my favorite.