I held back, still trying not to hurt her. I inched forward just enough to get the tip past her sphincter. She grunted, but didn't stop me. When I pul...ed out, she whimpered. She was hot to take my dick up her ass. Who was I to argue?I put the head back in. It popped right past her sphincter this time. Encouraged by the ease with which she took the head, I pushed on. I could see her wince as my thick cock went deeper into her ass; however, she still didn't stop me. I waited a moment to let her. Clearly enjoying the reaction, she tried to pull away but her efforts were half hearted and there was no real intent. Tying her wrist securely I stretched the cord across and secured her other wrist to the opposite leg of the couch. I looked down at her. She was trying to raise her face to my groin, opening her mouth and clearly enticing me to let her suck me. I stepped forward as if to let her but instead I moved around the couch. I couldn’t believe how intense this was. The way she was. We stood there looking at each other. Mom put her purse and laptop down, came over, and took me by the hand. She led me to her bedroom.I laid down on the bed. Mom pulled up her skirt, took her panties off, and threw them on the bottom of the bed. She mounted me and opened the towel. I was already sporting an erection in anticipation of masturbating with my mom. I looked my mother in the eye as I reached down and took hold of my cock, and asked, “How do you want to do this?” as I started to. It had been a gift from Sean a couple of years ago and while I loved the feel of it I didn’t like to wear it in public. It was so thin you could almost see through it. Today though it had seemed the right one to wear. I knew guys enjoyed me wearing it though, they could clearly see my areole through it and I heard plenty of comments on it as I walked, swaying my ass a little more than usual. I didn’t need to be here, my shopping had been done for weeks already, but I wanted to be out. I.