[mysweetie61]

A female co-worker (lets call her Angie) of mine has a sister (call her Bell) that keeps getting comp hotel stays in Vegas. Angie is about 5'4" and weights about 120 pounds with small breasts and long gorgeous nipples
According to Angie, Bell usually invites Angie to join her in Vegas for the sister thing. I always teased Angie about taking me but never expected anything would happen since she was married. To my surprise in 2010 she invited me to go with her to Vegas for 5 days. She said Bell booked a 2 bed room at the Flamingo. Bell lives on the west coast and we live in the northeast. We arranged to take flights that would land around the same time. Long story short, we arrived around 19:00hrs and rented a car to get us to the hotel. We had dinner and gambled for a few hours. Both ladies were tired so we headed back to our room. My thought was that I would sleep in one bed and the sisters would take the other bed. To my surprise Angie told Bell that she could have the bed all to herself since it was her hotel room. Shocked as I was, I hoped into bed with Angie. Angie whispered to me that nothing was going to happen.
With the curtains partially open, we could see the neon lights across the way. Nothing happened until 6:30hrs in the morning when Angie rolled over and began to kiss and hug me. I was turned on and she knew it as she had started to stroke my woodie. I was further turned on because Angie's sister was no more than 6 feet from us with facing in our direction. I began to rub Angie's pussy and this got her going. Angie rolled over facing Bell all the while pulling off her PJs and panties. Angie's pussy was soaked at this point so I removed her top and slide my rock hard dick into her hot wet pussy. Angie was thrusting back and forth while looking at her sister and hoping she would not awaken to the stroking of my cock in and out of Angie's soaked pussy. At one point Angie was so horny she got on top of me and rode me. While Angie was riding me I was watching to make sure Bell did not wake up. To my surprise I saw Bell had one eye partially open and she was watching her innocent sister fucking someone other than her husband (which she thinks is an asshole because he tried to raping her when she visited her newlywed sister when she was 25 y.o.). As you recall the curtains were partially open and we had the bed by the window so everything was visble to Bell. I wonder what Bell was thinking "my sister is married and fucking someone in front of me" I winked at Bell and she smiled back at me and then pretended she was sleeping all the while she kept one eye partially open to watch the action. With the thought of Bell watching us fuck, I blew my load about 30 seconds after knowing Bell was watching. Angie came right after me with a loud moan. This moan got her sister up out of bed. The sister goes "what's happening, what's all the noise?" By this time Bell sees Angie naked and sitting on my cock. Angie goes "Sis, what are you doing?". Bell gets up and is staring at her sister's pussy and my cock as Angie dismounts my cock. My cock was dripping with my cum and Angie's juices. Angie did not answer but she got off my cock and slide back under the covers hugging me. Angie gets up and said "I'm going to go grab a coffee and give you the privacy of fucking each other" and then she leaves the room without another word. After Bell left the room we fucked again but this time she let out all her moans. She was one hell of friend and one hell of a fuck riding me like a cowgirl. Angie has such a tight pussy and the most sensitive nipples.