I cant help but notice the thick ass on her was absolutely amazing. And dinner smelled delicious. She made some amazing italian meatballs and stuffed ...hells. It was so good. After dinner she wanted to watch a movie. So we got comfy on the couch and started to watch something she snuggled close to me and we started to talking not really paying attention to the movie. She lights up a joint and we pass it around. Now im getting hungry again so i ask what was for dessert. She smiles and hops up. Gill didn’t exactly try to cover herself up and often on a Sunday morning she’d be walking about in bra and knickers or some see through nighty or the like. She was 23, short dark hair, good looking girl and a fair pair of tits and I often found myself staring and imagining things that I knew were just wrong because she was my sister. I would often feel my cock starting to swell in my pants and on one or two occasions I had to make my way to the bathroom and wank myself off thinking about her.. "Because if you are going to tie me up as I fantasise about youmay want to gag me also."Sue then pulled open the drawer at the foot of her bed and inthere were straps, ropes, vibrators and a ball gag. With a grinon her face she then opened a further cupboard and took out apadded bench about a foot wide and three feet long with metallegs in the corners that folded out with a wide stable bar attheir end which sat on the floor. On the table and the legsthere were a number of loops to fasten the. Her ass cheeks hugged my cock and she gently rocked back and forth cradling it and dry humping it in between her buns. She gasped "Lets just use each other for tonight. we need it" I didn't protest she stood up and her scent trailed up. The a****l in me could smell her needs. all of them. I put my hands on her ass and found the tight waste-band of her yoga pants. I pulled down and her ass spilled out like it was trapped. She wore some fancy underwear that she obviously used more than often and.