It's been a great year. I graduated from the University of Texas and I moved to the Houston area for my new job in the chemical industry. After a few months of apartment living to try and get a feel of the area, I was able to purchase my first house this spring. One of the basic requirements of house search was for it to have a swimming pool. The long and hot summer months in the south Texas area definitely require frequent dips in the pool to keep cool.
I grew up in a small town in northern Arizona outside of Flagstaff, so I knew what hot summers feel like. My family only had a small above-ground pool back then and we spent all of our time playing outside in that little pool. My real dad left us when I was a little kid and my mom soon re-married. My new dad already had two kids of his own so I was happy to have an instant family to play with. Living way out in the middle of the desert we didn't have many neighbors around us so the three of us kids became close out of necessity. My older step brother was the leader of the pack and always seemed to be just one step head of getting into trouble. He was a cool role model to me and took me under his wing growing up. He was six years older but seemed much older than that, not always interested in playing with me, but always supportive. My step sister Erin was a year younger than me. We became close friends, probably best friends during that time. We have never been far apart since.
It was no surprise to me that Erin would also attend college in Texas. I actually kind of expected and hoped that she would. I got my engineering degree from UT in Austin and she was finishing up her nursing degree at the University of Houston. Even during those college years in different cities we kept very close and probably talked a few times each week. Every now and then I would travel to Houston to party with her or she would come to Austin. We were inseparable and all of our friends knew of our close relationship. We would talk to each other about our girlfriends and boyfriends and usually conclude that things weren't going to work out. She dated a few guys that turned out to be jerks and I had a girlfriend for a few years mostly out of convenience.
So when I got settled in my new house, it was just like old times again having Erin around. She stayed at her apartment near campus during the week and would head over after classes were done on Friday. She took over one of the guest rooms that had some of my old furniture. We would have pool parties with our friends on the weekends and cookouts in the evenings. It was really fun having my best friend Erin around again.
Over the years growing up together I watched her develop from a rough tomboy into quite a lady. The progression over time is so gradual that I have never really thought of her as woman, but just as my grown up sister. Stepping aside and taking an objective view, she grew into one attractive young woman. She has managed to keep herself fit by working out often. Her blond hair has changed lengths and styles over the years with it currently being short.
When it was just the two of us in the house, we were really casual. I'd notice that Erin would wake up in the morning wearing a T-shirt with no bra and shorts. I would eat breakfast in only my boxer shorts before getting dressed. I think it was unavoidable that we would occasionally catch a glimpse of each other. Maybe a little nip slip here or the curve of her butt cheeks bending over would make me stop and think - "Wow, that's nice!"
I've never thought of Erin in any overtly sexual way as we've known each other all our lives. The only time I can recall that anything ever happened was a few months ago. It was late one night after a party and we were watching a movie together on the couch. We both had a few drinks and were probably a little horny. Just for fun, we started to kiss a little. To our surprise it didn't seem awkward at all. We made a comment about us being in an incestuous relationship together and laughed.
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Yesterday was Saturday and we had some friends over for a pool party, a few beers, and some hamburgers on the grill. We had no plans for Sunday, other then probably getting the grass cut and relaxing at the pool. After lunch, Erin announced that she was going to lay out for awhile and I started to mow the front yard. About a third of the way done, I ran inside to get my sunglasses and I noticed that she was lying on the pool deck wearing a new yellow thong bikini. She had talked about getting it last week and apparently did so without making any big deal of it. I must admit that she looked good. I finished cutting the grass, changed out of my sweaty clothes and into my swimsuit and joined her at the pool. I pulled one of the chairs onto the deck beside her and sat down.
"New bikini," I said, not so much a question as a statement. "Looks nice."
"Do you think so?" she replied. "I can't decide if I like it yet."
"What do you mean? It looks good."
"Yea, It's OK, but I don't think I'll win any contests," she stated.
"So you're thinking about those contests again?"
A few weeks ago, Erin raised the topic of entering a bikini contest at one of the local clubs. She has always been up for a little fun and has never been ashamed of her body. We watched one of the bikini contests recently and she stated that she looked better than most of the girls on stage. I agreed.
"Yea, I'd like to give it a try. It looks like harmless fun. I need to work off these tan lines from my regular bikini, so I bought this little thong online."
I have always been a fan of women's swimwear and I immediately recognized it as one of the more moderate styles of a Wicked Weasel bikini.
"I'll work my way down little by little until a feel comfortable wearing one of those micro thongs," she said. "I think that's what I'll need to wear for a bikini contest. The winning girls usually seem to wear little G-strings."
I immediately pictured Erin wearing a tiny microkini while lying here next to me. Man, what a sight that would be.
Then without skipping a beat, she added "I've already ordered one of those tiny Wicked Weasel micro thongs, it should be here sometime this week." She smiled.
"Oh, I can't wait to see it," I told her. "You'll be a knockout wearing one of those."
"Do you really think so?" she inquired with a grin. "I'm still not sure I can pull off something like that in public."
"Sure you can, you're pretty and have a nice figure."
"We'll see," she replied.
Sure enough, on Thursday, a little padded envelope arrived in the mailbox from Wicked Weasel. Inside a little bag was a tangle of blue strings with three tiny triangles of fabric. Erin immediately went to her room to try it on and returned a minute later wearing the microkini. It was magnificent on her. Her perky C-cup breasts were enhanced by the under-sized top and they appeared to be larger than when wearing her regular bikini top. The tiny thong fit her body perfectly and the single string between her ass cheeks looked awesome. She has the perfect body for a tiny thong.
"I love it!" she exclaimed. "What do you think?" she asked as she posed in the kitchen.
"Wow, now that is a nice bikini" I gasped. I couldn't believe that my step sister was flaunting herself before me in a tiny blue microkini.
"It feels so light, like I have nothing on at all," she smiled. "And I think that this fabric becomes a little sheer when wet."
Oh crap, I thought. I'm not going to be able to keep from staring at her little pussy all the time if it's true. But I couldn't resist the temptation to verify. "Really? Let's jump in the pool and check it out."
