She then went down on her knees and took me in her mouth. She was quite the expert and I really starting fucking her face. She seemed to love it and s...on I could stand no more. She took a mouthful of my come, then I withdrew and sprayed the rest over her face. She looked shocked but sexy.I stood there naked now and she was fully clothed. I asked her to join me in the shower but she absolutely refused. In the end I convinced her. She was even more beautiful naked than clothed and I could not. I continue down until I reach her groin. Almost nothing there. Just a slightly puffy little mound. It’s so different than being a man, reaching down and feeling a cock and balls right there. She’s just all sleek and smooth.I cant stop, I reach under her pants and feel around more. Little cotton panties cover everything nice and tight. I slide under these too, and feel immaculately smooth skin, soft as a baby, not a hair or blemish or flaw. Further down I feel it finally. This little girl's. I stretched from her elbow past her wrist-- reaching closer to her pinky's knuckle on her right hand. She shook her head, smiling, and repeated, "Dear god... Okay. Let's see what we see... you're fully hard, right?" Actually, yeah-- it feels like it. Usually it takes a bit longer, but..." ...But you are really, really looking forward to fucking me, aren't you?" she said-- grinning. Without waiting for an answer, she took the tape measure and lifted the end to the very base of my cock, pressing. "Look at your sister Matthew, Dan whispers into his ear, i know she is your sister but just look at her closely, look at her body, that small smooth body and her pouting lips" Without even realising what he was doing Matthew had started looking at her noticing her chest and lips very fast. "imagine those lips wrapped around your cock, sucking you slowly, sucking on you, sucking" he whispers as Matthew begins to stiffen in his slacks before turning to Dan " what the fuck shes my little sis".