My sister April is a year older than I am. Back in high school she had a reputation for getting around. I developed my own, chasing every skirt I could! We weren’t close back then. Safe to say we are closer now.

Our parents divorced when we were young and our dad remarried when we were in college. He and his new wife went on a honeymoon, then they invited us and a couple of their married friends to join them at a big rented cabin for a few days.

This place was great. It had a large hot tub built in to the deck, a big pool out back, and fantastic mountain views.

There were eight of us there. Most had their own space, but April and I shared a room. While we enjoyed everyone there, we were the third wheel. But it gave us lots of time to chat.

Our first moments alone came very late one evening in the hot tub.

We talked about the old days. We admitted we knew about each others reputations. April was very open.

“I was called lots of names by the other girls back then,” she said. “Truth be told, I just enjoyed sex. Still do.”

“Finally something we agree on,” I said. She laughed.

“I probably sound like a guy,” she continued, “but there was never a big emotional connection. I was horny and masturbating didn’t cut it for me. The big thing was trying to find someone I could trust, and then have them stick their dick in me.”

“I was always turned on,” I said. “My issue is that has not diminished. I know I’m not old, but that drive has intensified.”

We decided to continue our conversation inside. We stood up and she made a comment about my erection tenting my swim trunks.

“Further proof. A conversation with my sister about sex was enough to get me going.”

I noticed her peak a few times as we made our way to our bedroom. I’d be lying if I said I didn’t look at her.

April is short with big round tits. Her bikini was one of those almost-thongs everyone is wearing these days. I got a tremendous view of her ass as we went upstairs.

We had our own private bathroom in our bedroom. April grabbed some things and went inside to change. I hung my suit and towel over the back of a chair and slipped on athletic shorts.

April returned in panties and a tshirt.

“Are you trying keep my cock hard,” I said with a chuckle.

“I’m not mad if I do,” she shot back.

We talked for a little more before it turned back to sex. We both had been single for a while and she had been in a mood lately.

“I brought a toy,” she said, reaching into her bag and pulling out a thick, rubber dong. “Thought I’d have my own room.”

“Forget that,” I said. This was my shot. “If you want a cock, sit on mine.”

At first she laughed at the idea. But we talked pretty seriously about it for the next few minutes.

“If it’s not emotional, if it’s just cock and pussy, I can’t think of anyone I trust more than you,” I said. She was sold.

We agreed to start with her sitting on my lap. She didn’t know if she could face me. She turned around and slid her panties to the floor. I dropped my shorts and sat on the edge of the bed.

She backed up to me and I slipped my hand between her legs. She was was quite wet already, but I worked in with fingers for a bit. Then I guided her down onto my cock.

We giggled and talked as we came together. My hand found it’s way up her shirt and I fondled her big round breasts why she slowly rocked her hips back and forth.

We played like this for a moment, but she wanted something more intense. We both stood up and she threw off her shirt. She turned around and I got my first full look at her gorgeous naked body.

We smiled and giggled as we passed each other. She bent forward and braced herself on the bed. I stood behind her and stuck my cock in again. I grabbed her hips and pounded away.

It was difficult for us both to be quiet. She was dripping when I felt her pussy clamp onto my cock. I was glad, I couldn’t hold out much longer.

I pulled out and with a few tugs shot my load up her back. We were catching our breath as I cleaned her with my swim towel and we both started laughing again.

“That was great,” she said.

“Agreed,” I said.

“Tomorrow we can make a store run and you can grab condoms.” I agreed wholeheartedly with that plan.

We sat naked on the bed together talking for another half hour before we got dressed and went to sleep.