With a smirk on her face she replied 'truth or dare?'and i replied 'dare'For the next 30 minutes we dared each other to make noises and ask Mrs Greyma... wierd questions. Then finally i asked for a truth instead of a dare. 'hw big is ur dick?' she wrote. I swallowed hard, my cock twitched. I gave her my size and all i saw was her gasp and look at me with a face of lust. And by this point my dick was at full attention. My turn to dare and i planned on making sure i blew her mind sooner or later.. ”She said, “We are not normal from the start and I cannot wait any longer. I want you to feel inside.” I kissed her again and went down and placed my dick at the entrance of her pussy. She asked, “I thought you will bring rubber?” Damn, I came back to my senses. I rushed to find my shoes, found them.I took the keys and opened the locker. In a rush, I picked one condom. Another 9 fell. She laughed. I wore a condom. I am going to fuck my sister. Slowly I pushed it inside. She gasped. I entered. How about it?”I had worried about using Becky, but she seemed truly interested in helping. I realized it might just be a way to try to worm herself back into my bed, but I felt I could keep that from happening at this point. Of course, it would have to be kept completely secret given Kara, Bethany, Jennifer and Stephanie would have serious issues with it.“Maybe. I’d have a couple of conditions. First, it has to be completely secret. Second, you would have to be able to take phone calls. Third,. I forgot all about what I was supposed to be doing. Watching her face change expressions was the hottest thing I’d ever seen. Her eyes slightly closed as she ran her tongue over her lips. Her nipples hardened under her blouse and her fingers disappeared underneath her lacy bra. Her typing slowed, but her breathing picked up. I was rock hard by this time. I couldn’t help but touch myself through my pants. I was very careful not to make a sound…. I didn’t want to spoil the moment..