I kept the boat cruising along around 15 knots along the east coast of the lake for several hours. Jess sat beside me, resting on the flybridge’s lounge. I steered out into slightly deeper waters until the shore was just a small line on the horizon. Setting the anchor, I killed the engines and secured the flybridge. Jess and I went onto the main deck where the main bridge and galley were. By this time she was back to her normal self, laughing and cutting up with me as we made a quick meal of sandwiches and chips.
When we came up here with the family our room was normally in the starboard cabin, across the companionway from the master cabin. In that cabin there were two separate twin beds so that if Jess woke up in the middle of the night I’d be near if she needed me. Tonight, however, we were going to use the master cabin.
Unfortunately, neither of the showers in either two heads were large enough for both of us so we had to settle for separate quick showers. As I stepped into the bedroom, Jess was already under the covers. We turned off the lights and I climbed in beside her.
As soon as I was down, Jess sat up and leaned over me.
“I need you,” she said, the hunger in her voice evident.
She kissed me, moaning softly as our tongues danced across each other. She slid down me, taking my hardening member into her mouth. With as much hunger as she’s demonstrated earlier, she devoured my cock. The moonlight allowed me to see her fingers rubbing herself as she pleasured me.
Throwing the covers off of us, she straddled me then leaned down to me.
“I need you. In me,” she growled
“Are-Are you sure?” I asked, suddenly nervous.
“I am.” she breathed. “I’ve wanted this for a long time, and now I’m ready.”
I watched my sister lift herself up, positioned her body, then slid me into her. I felt her lips part and allow me inside. Between using her mouth on me and her already extremely wet pussy, I slid in with very little resistance. A part of me knew we shouldn’t be crossing this line but not only did it feel incredible, it felt right. Like our bodies were made for one another, as trite as that may sound. With a final gasp, she slid down the last bit and I was completely encased within her.
For a moment everything stopped. She looked down at where we were joined and a little giggle escaped her lips. Jess looked back up at me, smiling as she bit her lower lip. In her eyes, the storm that always threatened at the edges, even after we had been intimate before, was gone. I was a part of her in the most intimate and complete way and she knew it. At that moment I saw the sister that I had lost all those years ago.
“Hello,” I said.
“Hey,” she said, leaning down and kissing me.
With slow thrusts I made love to my sister. She held onto me as I did, her body pressed against mine. Jess moved her body in time with mine, grinding herself against me. I clutched at her, pulling her to me each time I pushed into her wet pussy.
“I’ve wanted this for so long,” she confessed again between kisses as she rode me. I felt her squeeze my cock each time I push into her. Each thrust filled the cabin with soft squishing sounds and I could feel her juices run down me and onto the sheets. Reaching around, I gently massaged her perineum, trying to avoid pressing into her ass by mistake. That might’ve been too much of a shock and ruin the moment. As I did, she started tensing up and I could feel her shudder slightly. I knew what was about to happen and I sped up to push her over the edge.
“I’m cumming.” she cried as she spasmed against me. Out here, alone in the middle of a lake, there was no need for her to be quiet. Even when our parents weren’t home we felt we had to keep the volume down. Now there was no one anywhere near us and there was nothing holding her back. Jess howled and moaned as waves of pleasure coursed through her. Her fingers dug into my shoulders as she held on, her body shaking not only from her orgasm but my thrusting into her. The walls inside her clutched at my cock, pushing me closer to my own orgasm. I slowed to a stop, letting both of us cool down a bit.
“You need to get up. I’m really close.” I said in between gasps.
Instead of getting up she smiled at me mischievously and started slowly gyrating her hips against me.
“What are you doing?” I asked alarmed.
“I prepared for this. It’s safe.”
“Are you sure?”
Without answering me, she started rocking her hips faster and faster, thrusting me in and out of her with each roll. I held it back as long as I could, partly to prolong the sight of my sister fucking me but also because part of me was scared to cum unprotected inside her. Every time I’d ever had sex before, I either used a condom or pulled out well before I came.
When I could no longer hold it, I felt my orgasm rush up through my cock. Like Jess, I cried out as I came, partly knowing I couldn’t be heard and partly uncontrollably. I felt my cum rush out and fill her, jets of my semen entering her quaking body. Jess pushed herself onto me, pushing me as deep as possible into her as I came.
As I cooled down Jess looked down at me, both of us panting trying to catch our breath.
“Holy shit.” we both said, then laughed at our “twin-ness”.
She slid down off of me, my softening cock slipping out of her with a soft squish. She kissed down my chest, eventually making it all the way down. She took me into her mouth, cleaning my dick of both of our juices. As sensitive as I was I couldn’t help but cry out and my body jerked up.
“Mmmm,” she said, moving up to lay beside me. “You know, alone your cum tastes okay, and my juices taste okay, but together they’re actually pretty good.”
“Oh, so you’ve tasted yourself?” I asked teasingly.
“Maybe,” she shrugged, then kissed me. “I love you, Jace.”
“I love you too, J-Bird.”
“No, Jason,” she said seriously. “I. Love. You. In every way. Not just like we always have, or because we’re family. I love you. I’m-” she paused. “I’m in love with you. I have been for a long time.”
“I-”
“No.” she interrupted. “I don’t want you to say it back. Not yet. Not immediately after. Not when you’re still euphoric. Not as a reaction. Say it after you’ve had time to think about it, and then only if you mean it.”
Jess rolled over onto her side, pulling my arm with her. With the boat rocking us gently, we fell asleep spooning, her body fitting perfectly against mine while her words echoed in my ears.