It all started out innocently enough. We hung out often, did all sorts of things together. We'd go to shows and games, shopping, just generally whatever came to mind. As we got older, we'd go dancing, or to dinner just to get together and chat, gripe or complain about anything and everything.
We didn't have any common friends from earlier in life, so anyone we met didn't know us as brother and sister, only as two people that hung out together. The rest of the family was long gone for a variety of reasons and we were basically the last ones left.
As life moved along, we had our own homes and work life and didn't really get together as much during the week, but we made it a point to do something almost every weekend. That sometimes meant sleeping at each others' homes, or talking short two or three day road trips.
Eventually, we noticed that some events were couples only, or that couples would get discounts. Anything that needed names for registration, we'd use our own. Nobody ever questioned anything. Our last names were the same after all. She was about five years older, but that never seemed to matter to anyone. We really didn't look alike either. There was no real familial similarity in appearance between us.
Then we'd start to take advantage of it as we started traveling together for quick summer trips. We noticed that some older Mom and Pop motels charged different rates for families or couples. We started registering as my First Name **and** her First Name, our Last Name, instead of my First Name and Last Name and her First Name and Last Name. It was a subtle change that seemed innocuous at first, but would have a more profound effect later.
We had no idea that one of these trips would change our lives forever.
We got to the resort hotel we'd booked and got checked into our room. We didn't really notice anything odd about it at first. We changed clothes and went about our day being tourists in the surrounding town. Later we got back, had a snack at a cafe and decided to head out to the pool. That's when it hit us. Virtually everybody there was nude. This was a clothing optional resort and we'd never noticed that little detail any of the in the brochures.
Almost panicked and ready to run back to our room to pack and check out, we caught ourselves in a slow deliberate look that turned into an 'ehh, what the fuck?' look. Without a word spoken, we both shrugged. She was first and slipped out of her one piece suit. I followed by dropping my trunks and into the pool we went as naked as everybody else. We spent the rest of the afternoon and evening naked just like the others without really taking much notice Even the next day at the clothing optional luncheon, we stripped down without much thought. I guess we really just wanted to blend in and never really looked at each other all that much.
However somehow, the seed was planted.
That night at sort of a luau type party, the booze flowed more heavily and lot of bodies were bumping and grinding in various ways in front of us. It seemed to be contagious and I was soon dancing far too close with my naked sister. That was the first time I realized she had a really decent body and it felt kind of good.
I woke up the next morning in bed and it took me a minute to realize she was beside me, tucked under my arm, head curled against me ... and still nude.
As she began to awaken, she too seemed taken by surprise. We looked at each other, then looked under the sheets, then back at each other. Then we became aware of the infamous wet spot. Her eyes shot open wide as she reached under the sheets and felt herself, then almost screamed.
Our eyes met on a mix of terror, shock and a bit of arousal. An odd mix of good Wow and bad Wow.
She jumped out of bed, grabbed a robe and ran out of the room. I found her sitting on the balcony, unsure if she was crying or not.
I made some coffee and took her a cup, tapping her lightly on the shoulder to get her attention.
"DON'T TOUCH ME!!! HOW COULD YOU!!!!"
I stepped back inside, but stayed close to be there when she settled down.
It may have been an hour before she even looked at me.
"How could you do that? I'm your sister!!"
I tried to calm her and make my case that I didn't do it alone, but she wasn't having it. She got dressed and left the room and I wasn't sure if I should pack to go home or not. I felt mighty damn guilty though and more than a bit dirty somehow. I'd fucked my sister while we were drunk and she seemed really pissed off about it.
Three or four hours later, she comes back into the room, walks over to me and puts her arms around me very warmly
"I'm sorry I got mad. I was just in shock, but now that I've had time to think, I know it wasn't your fault. We both did it."
The more we talked, the closer we got. We held hands, we hugged. We even kissed in a sibling sort of way.
"You know what really makes mad though? What bothers me the most?"
"No, what Sis?"
"I realized as I was out walking around that I liked it. I mean, I really liked it. I liked having sex with my brother, and I'm mad at myself for that."
"Why?"
"Why? Because it's as wrong as wrong can be. It's incest. It's illegal."
"But you said you liked it."
"Yes, I did. And I meant it and that's why I'm mad. At me. Not you. I set all this up by spending so much time with you. By undressing down at the pool and being naked with you. We shouldn't have done that."
"So, now what do we do, pack and go home? Stop the trips?"
"No, we can't leave. We wouldn't get a refund for the rest of the days. We'll stay and make the best of it and get our money's worth."
"There's one of those tours running tonight."
