Both Rick and I adjusted our hardening cocks.She turned and looked over her shoulder and gave me a great big smile. She flexed her self and I looked a...t the most perfect ass.Rick said look all you want, I know you have always wanted to. So I did, and Sue did a couple of wiggles letting me know she did not mind if I looked at her with pure lust.She dropped down off of her toes and turned towards me with her hands in the air she did a couple of slow turns.As she came around her hands dropped to. What’s happening to me? Oh, Oh, OH, OH, MY LORDIE WHAT’S HAPPENING?” She cried out as she tensed up and experienced her first orgasm. “Oh my, oh my, it feel so, so…so wonderfulllllll,” and she started humping Kristy’s mouth. I kept up my assault on Kristy’s pussy from the rear and she loved the feeling of this new position. I reached down between her legs and felt for her clitoris and started to rub my thumb and finger over it. As Carrie was coming down from her explosion, I told her to. Her eyes drifted across the room and met mine as she sensed my presence."Before you ask, Tim stood me up. Bastard! He stood ME up!" she roared.I smiled to myself. My prick teasing, sanctimonious, self-centred sister had been stood up! It was poetic justice.Shelly gulped down the last of her wine and poured herself another glass, as she sat up to pour the wine her legs parted and I could see up her skirt; her slim thighs, encased in the sheer taupe nylons led my eyes to her crotch. She was. She matched my rhythm perfectly and the penetration seemed more complete. I picked up the speed and thrust harder which made her gasp a little loudly. Instantly my hand flashed to the side of her face and I gave her a sharp slap to remind her to be quiet. “Sorry” she said as I continued to ride her. She leaned against the wall as I continued to ram her from behind. I was almost “good to go” but wanted to last a little, to keep the rush as long as possible. I thought of my wife in the kitchen.