I stepped back and looked at the object of my hate for the past twelve months- all tied up and wide open. The tought that she was totally at my mercy made me even harder. Not that she was going to get any mercy. Mercy was the last thing on my mind. I picked up th knife and put it to her face. I let it run down her cheek to her neck. Then i let it move down even further to her tit. I placed it to her nipple. "You want this?" I asked her. She nodded. "Then u going to have to be a good girl arent you?" I started to strip off my clothes slowly orederring her to watch me. I saw her gasp as i revealed my thick erect cock. I climbed on the bed and sat on her chest. My erect member was pointing at her mouth. "You want to keep that nipple you gonna suck"