"Paula stifled a giggle and also blushed. For all we're brother and sister, we don't look at all alike, I'm a gnats whisker under 6 foot, dark brown h...air, blue eyes, broad shoulders and what's known as work muscles. I don't have time for a gym, but my job keeps me more than fit as it's quite physical at times. Paula though (and our other sister Meg) is five four and almost elfin in appearance, a honey blonde, petite with a small but nicely proportioned bust and the cutest arse you could. I began to began to fuck him slowly up and down deep-throating him while running my tongue up and down his shaft caressing his cock. I felt his balls began to tighten as I continued to fuck him with my mouth. He began to moan louder as I started to suck him faster and harder licking his cock as if it were a giant lollipop. I took my hand and began to pump his cock real tight as I continued to suck his monstrous cock. I felt his body jerk as he began to shoot his hot cum into my waiting mouth. I. I couldn’t count on her not to tell, but I wanted her awake for it all. I decided I would proposition her first, and if that didn’t work, I’d go to more extreme measures.“I’m headed out you two!” Jennifer called from the front door. “Alright Dear, have fun.”“Bye Mom!”I heard the door close, and I poured some wine.Blair walked into the kitchen, opening the fridge to scour for dinner.“Why don’t we eat out tonight.” I saidShe looked uncertain. “Come on, anywhere you like.”She smiled, “Alright, but. In a manner of minutes, sweet nectar trickled from her pussy and her moans got louder. I could hear splashing coming from the hot tub and knew mom was getting close to her orgasm. My fingers slid in and out of her pussy with increased speed, and brought her to the edge. “Uuuggghhh, uuuggghhh,” Erin moaned as her orgasm shot through her body.Slipping my fingers from her pussy, I stood up and wrapped my arms around her. While she was slowly coming back from her orgasm, we watched as sis brought.