I hadnt got a clue what she was talking about, knots, what was a knot, I was about to find out very soon. I got on my hands and knees and the first li...k of his tongue on my pussy sent an electric shock through me. My Dad had licked my cunt many times, never like this, the long tongue went almost inside me and licked. I had an orgasm almost immediately, this was something I had never experienced in my short life. His tongue was relentless, it was inside my pussy driving me crazy. I kept cumming. " I said smiling at her. I knew she had no argument to that becauseshe usually had on a thong, thus wearing the tights when she had on askirt. We walked up to the cash registers and proceeded to pay for theitems. As we were putting the items on the counter, the woman standingbehind it smiled."You'll like the night gown, I have 5." I furrowed my brow. When she gotdone scanning the items, the total was another $150. I pulled the cardout of my purse, and handed it to her. We carried the bags out. A little groan came from the back of my throat. Mom reached down and slid her bikini bottom down over her hips and off her legs. I could see the golden blonde hair above her pussy."Don't say a word," she whispered again.Mom got up on her knees. Kneeling above me, she pulled my swimsuit down my hips just enough so my penis was exposed. It rested against my stomach, flaccid and soft.She looked into my eyes again, "Don't say a word," she said again, then slowly bent down and took the head of my. All of my attention was on her, my focus on the intense warmth of her pussy and how fucking amazing this crazy, spontaneous fuck was. If the person walking in hadn’t yelped when they first entered the restroom, I may not have noticed at all.“Ohmygod, sorry! Sorry..sorry...” They muttered as the door closed in front of them. The voice was female, I had been too concentrated on not cumming too soon to recognize if I knew who it was. I wanted to make this impromptu lust with Delilah last as long.