She smiles at herself in the mirror. The chaps frame her ass and the single white strand of her thong as it nestles in her ass.She rotates her hips a ...little, watching the movement. She has become obsessed lately with her ass. She doesn't know where the obsession started, but she likes looking at her ass, and just lately she has begun playing with it in the shower. At first, it was just the simple act of slipping a soapy finger into her anus, not far up it, just enough. Then she began sliding it. Standing completely naked, she began to assess herself. She looked first at her breasts, which she still felt were larger than necessary. She reached up and cupped one creamy globe in her hand, squeezing its weight. Her tits still sat high on her chest and were still ‘perky’, though they were lighter than the rest of her skin- she never tanned topless and felt that tan lines were a sign of modesty that made her fondly think of the few days she spent in the sun. She sighed and ran her palm down. “You know he’s very big don’t you?” Sally looked at David’s cock, still twitching in front of him as she heard her sister’s words. It did look rather large. Would she be able to fit it all in? She knew the answer.“It is big isn’t it?” Sally replied forlornly. In fact her pussy was starting to ache just to think about it. Kate felt some sympathy for her younger sister and then suddenly said.“I know! Why doesn’t David use his fingers on you? Then you can pretend!”“Yes that’s a much better. ‘Mmm, your a big boy aren’t you,’ Nicola said as she rubbed me on the outside of my pants. Slotting two fingers inside the waistband on either side she pulled down my pants exposing a very stiff cock which bounced out almost hitting her on the nose. Once my pants had joined my trousers, Nicola grasped my solid shaft and pulled back the foreskin to expose a vermilion cock head. Licking her lips she leant forward and breathed warm air on to it and then engulfed it with her wet mouth. ‘Nngh,’ she.