I unbuckled his belt, then unzipped and removed his shorts, too. He sat on the grass along the edge of the sandy area and began stroking his growing d...ck. He told me he wanted to see my boobs bounce, so I started to jump and dance in a way that made my tits bounce up and down and slap into each other. This whole situation was making my pussy wet and my nipples hard, and in just a few minutes Brad’s cock was standing straight up, fully erect.Brad reached up and grabbed my bouncing tits, slapping. My hands ran up and down her legs, over her shoulders, down her back. Before I realized what I was doing Sarah was asking me What are you doing daddy? Mommy doesnt put it there. I snapped back into reality and noticed that my hand was about an inch away of being inside of her sweet pussy lips. Oh sorry sweetie I said. Then I quickly put on her nightgown and tucked her in bed. After I turned off her light and shut her door I went into the bathroom myself, hopped into the shower and started. She began to enjoy it she moaned rhythmically while I finger assfucked her. I let her come twice and than I told her that her ass is ready for some dick. When I took my 8 inches cock out she got pretty scared, but I told her it would not hurt. I also told her that she can be on top and control the penetration. She agreed. I sit on the edge of the bed and she started to lower down her back facing me. I added some spit to my cock, she grabbed it and lined it up with her bum. She started to lower. Her breast were bulging up, bugging for me to take them out, i thought about how good they would feel but eventual it passed. When we got home i went straight to my room and relived myself from the car ride. After wards i went down stairs and plopped down on the couch next to my sis. "How you doing' little brother?" she asked as we where watching t. v. "So during the car ride i noticed u looking down my shirt a couple of times, what was that about?" She startled me and i was a little stunned.