Cathy Again As we prepared for bed we packed a few items for our weekend at Kim's uncle's estate. "By the way," Kim casually remarked, "Cathy called today. She is flying in tomorrow morning for the weekend. I invited her to join us. I hope you don't mind." Of course I didn't mind. My cock throbbed at the thought of what had happened the last time she was at our house. Your readers of Kim's letter will remember that Cathy is Kim's fifteen year old sister and that she had flaunted her sex for me. Kim had caught her at it and given her a spanking which we both believed Cathy had really been after.

After the lights were out and I snuggled up to Kim spoon fashion and dreamed of Cathy. Kim commented on my hard cock poking into her ass. "What are you thinking?" she remarked suggestively. "Cathy." I responded. Kim always curious and sensing something interesting wanted to know more. "Just dreaming of you seducing her the way you did Mike." I replied. "Oh!" She retorted. "You'd like to see that I suppose." Of course I would and she knew it. She reached behind her gave my cock a squeeze and as she drifted of to sleep mumbled. "Dream about it big boy. Dreams can come true." My prick pulsated at the pleasant thought and I slipped off to dreamland.

The next morning after a quick breakfast I kissed Kim a quick goodbye and told her I would see her at her uncle's as we had arranged. "I think you should come by here about eleven." she winked at me suggestively and my cock began to throb again. "Dreams do come true." I remarked as I left.

When I got to work I reorganized my work so I could leave by 10:30 for the weekend. My boss was very understanding. When I got close to our house I parked as I had the day before away from the house and slipped down the street. Kim's car was parked in the driveway. I slipped up the driveway and as with the day before Kim was sitting by the pool but this time she was talking to her lovely sister Cathy was also there. They were both wearing halter tops and cut off shorts. I slipped upstairs to our bedroom to my perch over looking the pool from the bedroom window. I could hear them talking about girl stuff. As I watched Kim glanced at her watch and noting it was eleven that there was just time for some tanning before lunch and they went over to their uncle's. I slipped into the walk in closet in case they decided to change in our bedroom.

As I peered through the louvred doors Kim appeared but Cathy wasn't with her. Kim suspected I was in the closet and went straight for the door and came in. She gave me a hug and deep passionate kiss. "Are you ready for another dream like yesterday." and grabbed my dick. It was betraying my sexual desires already. She gave me another kiss and retreated into the bedroom without a word from me. She quickly changed in to her thong/ bikini grabbed some sun tan lotion and left the bedroom. I gave her a minute or two to get back downstairs and went back to the window to spy on the scene below.

Kim was reclining on the chaise lounge on her stomach. Her arms were folded under her head as she dozed under the summer sun. After a moment or two the fifteen year old Cathy appeared. She sat next to Kim on a deck chair. Cathy had on a bright red one piece suit. It was cut really high in the legs and barely covered her pussy and ass. I thought I caught a glimpse of honey blonde pubic hair which matched the curly shoulder length hair on her head. The back of the suit was really low and the front cut low as well. This suit was never designed for swimming only sun bathing and teasing the male population.

Kim handed Cathy the sun tan lotion and asked her to do her back. Cathy took some lotion and began to lather it on Kim's shoulders and down her back. She jumped over the strap holding her top in place and covered Kim's lower back. She stopped short of her ass crack which was easily visible since her bikini bottom covered so little. Kim told her she had missed a spot and reaching behind her undid her bikini top. It fell to the side and Cathy rubbed the tanning lotion into the spot she had missed.

"Do my legs too." Kim requested. Cathy got up from her chair and knelt beside Kim and rubbed sun tan lotion onto first one than the other of Kim's calves. "Do the tops too." Kim continued. Cathy seemed to blush a little as she rubbed the lotion over the backs of her sister's legs. "Make sure you do the sides too." Kim was becoming quite demanding of service from Cathy. Cathy complied kneading the cream onto the outsides of Kim's upper legs. "Don't forget the insides too." Cathy taking more lotion stroked it onto Kim's soft sensitive inner thighs. "Ooh that feels good." "Do my ass too." Cathy did as directed.