I had been so close to it that I hadn’t ever seen her in all her glory like this and now I could see everything. Her bum was open and her clitoris w...s being gently massaged by the movement of her lips moving the little hood back and forth over it and by his balls touching it right at the end of each long stroke. They were both in a world apart from mine and I could only watch as he brought her closer and closer to what she longed for. His head was erect and his nostrils flared and he gritted. Can you wait?" No! But I guess I'll have to," she answered petulantly.She shuddered -- and I mean all over -- and pushed her pelvis up, taking my two fingers deeper. I could feel her pussy inside, hot and dripping. Her mouth was open and wet and her fist was jerking my cock harder and harder."Easy, babes, please -- before I kill us!" I slowly pulled my fingers from her wet slot and she made those sounds I love to hear! I couldn't wait to get my urgent prick into her wet and tight cunt.When we. "Who are you?" Your grandson." I don't have a grandson." Yes you do Gran, now get upstairs." I said exasperatedly and took her firmly by the arm."You're hurting me! You're hurting me." She wailed as I manhandled her up the stairs.I dragged her to her chair and forced her onto it."Stay there and I'll fetch you your cuppa," I said firmly as I could feel myself starting to lose it as the day's events just seemed to keep on getting worse.Gran just burst into tears and I left ashamed to get her tea. She begged, clearly frustrated by my teasing, "Put it in, please Anthony, I need you in me now." No longer able to resist my sister's burning inferno, I leaned forward and my cock easily slipped between her wet pussy lips. Once deep inside, I savored the reality of what was happening. Lilly's pussy was so hot and tight, just like her mouth. But unlike when her mouth was wrapped around my cock, this time I was in control. I stared at her face, her eyes closed but her trembling lips speaking.