She holds me a little tight and all of a sudden, I started to get an erection. She looked at me and asked is that ok with you? My erection got harder ...nd harder. Innerwear had any sexual feelings over my own blood related sister until now, the scene was so hot and indescribable.I felt my hard penis rub against her vagina over clothes. I was wondering if she has realized it. She was tied so she layed her hed on my chest and went to sleep. I was still aroused and saw my sister sleeping like an. . or at least her back, but I hoped for more.When she got home at about 3 o'clock, I tried to act very casual. For some strange reason I didn't want to seem over eager. "Uh ... anytime you want that back rub, let me know, Mom," I said."I want to take a quick shower. I have been looking forward to this all day."So had I. The thought that in just a few minutes I was going to put my hands on my mother's body made my cock start to harden."Where do you want to do it?" I asked."I suppose on my bed.. It was painful for me. He rubbed it through the slit, up and down pushed it in hard. He was half way. I screamed, he held my mouth, pulled back, rubbed again.He then gave me a grand thrust, holding my mouth. I felt like a lightning entered inside me, shattered my pussy wall with force. He paused for a few seconds, while sucking my lips. He then slowly started to pump me, squeezing my boobs. I was in tears with pain and joy. I held his waist with both of my hands. He was ramming me steadily and. Sure it made me a sad person and it was just a dumb thing to get off to, but it was what I liked. Fuck the rest of the World and their opinions. So, with my introduction aside, lets look at the next character in this little story – My twin sister, Julie. She wasnt much different than me – Loved anime and a lot of things Japanese, had basically the same type of glasses – We were basically twin nerds. We werent REALLY twins, but we were so much alike that people just began calling us that. Only.