Our orgasms seemed to last for ages but I guess they didn't, once they subsided Susan opened her eyes and smiled at me, this was nothing like the sex ... had had with Kate which was always fast, this was a special euphoria shared between brother and sister. Susan lifted herself off my cock and headed over to her own bed and we drifted off to sleep.In the morning we woke to the alarm and put our PJ's on to head down for breakfast, it was then mom revealed that I had been expelled from school. It. There before me stood my sister in nothing but a white, lacy bra and panty set. I stood there dumbfounded as I saw for the first time her long smooth legs running high up to her small waist, I could see her ass was extremely tight hidden beneath her panties. Her stomach was as flat as any other I have seen before which made her full round breasts seem even more perfect. I later found out they are 14C's. Her tanned skin looked great against the white of her underwear. I stood their dumbfounded. She said get real dad I have a computer. I've seen a cock on there many times it's no big deal. I told her that it was a big deal because I didn't want her to have to see me in the buff. She wouldn't give up on me taking a bath. So I gave in and let her help me. I went into the bathroom she helped me get undressed then I sat on the chair near the sink. I couldn't get my casts wet so that meant no shower. I washed my face arms and everything else that I could reach. Brittany washed my. I wait and push in a little at a time till the whole thing is in and I'm burried to the hilt.You're clawing at the sheets at this point, the material bunched up in your fists. I grab your hips gently and pull back before pushing in agin slowly, over and over, but only a few times before I get rough. I know you like it rough so I pull back almost all the way and shove in quite forcefully. The strap on is rubbing my pussy so much I feel I may cum again."You're so fucking tight!" I yell, you.