"The Alton boys will be working up by the old shack on the north side," Aunt Melody shouted as we walked out the back door. "I'd avoid that area if I was you."
My twin sister Kaylee looked at me and said, "Which way is north?"
I shrugged and threw my stuff into the storage compartment of the ATV. Once Kaylee had her towel stowed, I started up the four-wheeler and we headed for the lake.
We were on the Colorado ranch of our Uncle John and Aunt Melody, fulfilling a promise they made to Kaylee and I that when we turned eighteen, they'd have us out for a week. The first day there had proven to be an eye-opener for my sister and me.
John, always my favorite Uncle not just because of his great thirty-two year old body, had managed to have sex with us in a barn and on the seat of the ATV. Today he was in Denver all day and we'd be on our own. Melody recommended the ranch's lake as a good place to hang out on the hot, sunny day.
So, wearing tank tops over our bikinis, Kaylee and I followed the winding dirt path over the horse fields and through a thicket of trees as instructed by Melody. Five harrowing minutes later we could see the lake. Soon after that we had a blanket sprawled out on the grassy shore and were covering ourselves with lotion.
"Too bad John couldn't join us today," Kaylee said. "This would be a lot more fun with him around."
"Yeah. I'm thinking he'd offer to help with the lotion," I said, conjuring up an image of his thick cock in the process. The sensation of him fucking me was still fresh on my mind, and in my pussy.
"What do you think of Melody?" Kaylee asked while settling down onto the blanket and stretching out on her back.
"She's OK. Kind of quiet, don't you think? Probably doesn't leave that house much," I said.
"Yeah. John probably doesn't get much from her. Maybe that's what caused yesterday to happen."
I was surprised at Kaylee's reasoning. She normally wasn't that into personalities and psychology. But, at the same time, I couldn't argue with her. Either way, the sex we had was marvelous and Kaylee and I both looked forward to more.
We sunbathed for a short while, and then began to really feel the heat of the sun. Kaylee suggested we get in the water and I eagerly agreed.
My normally shy sister was the first to untie her bikini top, looking at me seemingly for acceptance before pulling it off and revealing her luscious breasts. I quickly followed suit and, together, we waded into the cool water until it was up to our waists.
With the sun shining on her long, brown hair and her dark eyes glistening, she was a magnificent sight. There was little wonder John practically attacked us the day before.
I stood close to Kaylee and asked her, "What was it like...licking my tits?"
She blushed and looked down at the water. "I liked it."
"No, really. Tell me about it. What did it feel like?"
She clearly didn't feel comfortable with my line of questioning. "You hadn't done it before with anybody, had you?" I asked.
"Of course not, Kaitlyn," she responded quickly along with a frown. "What do you think I am?"
Her meaning was obvious. "Well, I didn't know."
She looked at me with a more loving look. "If you're so interested in finding out, there's an easy way to do it."
Now I was the shy one. She was inviting me to take her breasts and I wasn't sure I could do it. But a few seconds of staring at the full, firm tits with their little nipples begging to be sucked...who could resist?
I slowly leaned down and lightly licked the area around her nipples. It was the first time I'd ever touched another girl in that way, let alone my sister. But the feeling was incredible and there was no way I could avoid her nipples any longer. I put one between my lips and tasted it. Then I let my tongue rub against it.
Kaylee put her hand on my head and moaned softly. When I took a good portion of her breast into my mouth, she held me in place more firmly. I licked and sucked, finding it much more stimulating than I would have ever imagined. I knew from the day before how great it felt to have Kaylee sucking my tit; I just wanted to return the favor.
I put a hand on her lower back, pulling her closer. With my other hand I squeezed the tit and felt the nipple grow on my tongue. Kaylee put both of her hands on my breasts, kneading them and pulling on the nipples.
My stimulation had turned to pure passion as I felt my pussy begin to tingle with excitement. Our lower bodies grinded together under the water. I was glad we were in the lake so Kaylee wouldn't know how wet I actually was between my legs.
When I took my mouth away from her tit for the first time, Kaylee grabbed the sides of my face and pulled me up so we could kiss. It was a long, wonderful kiss with our tongues fighting for space. Rarely had a boyfriend made me want him the way Kaylee made me want her.
As if out of my control, my hands slid down her back and inside her tiny bikini bottom. I got no resistance from Kaylee as I wrapped my fingers around her silky smooth skin. She responded by squeezing my nipples harder.
I made my way back down to her tits and began a second assault. This time, my hand slid around and found the inside of the front of her bikini. I heard her whimper and struggle for about two seconds to prevent my hand from finding her pussy. But then her legs separated and I was able to slide my finger up and down, starting at her cunt and ending on top of her enlarged clit.
I nibbled on the ends of her tits while rubbing her clit harder. She spread her legs another few inches and I managed to put a finger deep inside her cunt. Kaylee stiffened and took in a deep breath. She only let it out when I returned my fingers to her clit.
"Kaitlyn, no. Don't! It...it...," Kaylee stammered.
"It what, Kaylee? It feels so good?"
"Oh God!" she moaned.
"I'm going to make you cum, Kaylee. Do you want it here or on the blanket?"
"Here. Fuck yes! Here," she said.
The more she talked the harder I rubbed her clit. I had the bottom of her suit pushed part way down her legs, not having to worry about an Alton or other passerby seeing anything below her waist. But it would be hard for anybody watching us not to know what was happening.
Particularly when Kaylee's orgasm got closer and closer.
"Kaitlyn! I'm...I'm almost there!" she cried out.
"It's OK, sis. Let it go."
She clung to me for support, our bodies as close as they could be and still allow me to finger her to an orgasm. Her breathing became short and erratic. She buried her head in my neck.
Kaylee muffled her scream as she began to cum. I held her by the ass and used as many fingers as I needed to stay in contact with her clit. She was rocking her body as if she was fucking my hand. I managed to bend down just enough to suck on her tit again, and that prolonged her climax for another few seconds.
Oh God, Kaitlyn. Stop! Please, stop!" she finally begged.
I held her tight and we kissed for the next couple minutes while she came down.
It felt good to swim after that, our bodies needing to cool down and relax. I watched Kaylee floating on her back, her beautiful body shining in the bright sun. It was no wonder it took John less than twenty four hours to cave in to his lust for us.
And I thought about Melody. She really was a very good looking woman, with an athletic body that she obviously worked on to keep fit. I couldn't imagine that John didn't love her and crave her body, as well. I just knew that when I turned thirty I'd be very happy to look like her.