My Stepsister’s Secret

I stepped out of the car and onto the Swenson’s driveway, the warm June air enveloping me as I gazed up at the house. Kat, Kris’ younger sister, opened the door with a bright smile, “Hi, Don! Kris wasn’t expecting you until 6 or 7 this evening. She and Mom just left for some shopping. I doubt they’ll be back for three or four hours. C’mon in.”

“Thanks, Kat,” I replied, “we finished a huge project early, so I was able to make the trip sooner. Mind if I use your bathroom? I’ve got a bit of a long drive behind me.”

Kat nodded and led me to the bathroom, where I quickly relieved myself. As I stepped back into the living room, I called out, “Hello, Kat?”

“I’m back here, Donnie! Come check this out!” Kat’s voice came from the bedroom, and I followed the sound to find her lying on her bed, stark naked and rubbing her pussy.

“Now, Katherine, you know we’re not supposed to have sex unless Kris is with us,” I cautioned, trying to keep my eyes from drifting to her naked form.

“C’mon, Donnie… we can do this without Kris. I won’t tell,” Kat said, spreading her legs wider. “You know you want some.”

I undressed and took out a condom from my back pocket, feeling a pang of guilt at the thought of disobeying Kris’ rules. But Kat’s eyes sparkled with desire, and I found myself drawn to her.

As I prepared to join her, I couldn’t help but think back to the previous year, when Kris and I had first started dating. We were exclusive, but I had a habit of sneaking off with other girls, including Kat.

It was a complicated web of relationships, but I couldn’t deny the attraction I felt to both Kris and Kat. And now, with Kat lying before me, I found myself wanting to give in to my desires.

But I knew I had to be careful. Kris was my priority, and I didn’t want to risk losing her trust. So I took a deep breath and tried to push aside my feelings, reminding myself that I was only supposed to be with Kat temporarily.

As I joined Kat on the bed, I couldn’t help but feel a sense of excitement mixed with guilt. I knew I was taking a risk, but I couldn’t resist the allure of her body.

As we began to make love, Kat’s eyes locked onto mine, and I felt a jolt of electricity run through my body. It was a moment of passion and desire, but also one of guilt and uncertainty.

Little did I know, this moment would change everything, and I would soon find myself caught up in a web of secrets and desire that would test my relationships with both Kris and Kat.

As I looked into Kat’s eyes, I knew that I had to be careful. I was playing with fire, and I wasn’t sure if I would be able to handle the consequences.

But for now, I let myself get lost in the moment, surrendering to the desire that had been building between us. It was a moment of pure passion, one that I would never forget.

As we moved together, our bodies entwined in a dance of desire, I felt a sense of freedom and release. It was a feeling that I had never experienced before, and I knew that I would never be the same again.

But as the moment passed, reality set back in. I knew that I had to be careful, that I was playing with fire and risking everything. I pulled back, trying to catch my breath and compose myself.

As I looked at Kat, I knew that I had to be honest with her. I couldn’t keep secrets from her, not now that we had shared this moment.

“Kat, we need to talk,” I said, trying to keep my voice steady.

“What is it, Donnie?” Kat asked, looking up at me with a mixture of curiosity and concern.

“We need to talk about what just happened,” I said, trying to choose my words carefully.

“What about it?” Kat asked, her voice husky with desire.

“I don’t know if I can do this, Kat,” I said, feeling a sense of uncertainty wash over me.

“Do what?” Kat asked, her eyes sparkling with desire.

“Be with you like this, without Kris knowing,” I said, trying to explain my feelings.

Kat looked at me, her expression unreadable. “I understand, Donnie,” she said finally. “But can’t we just enjoy this moment, without worrying about the consequences?”

Kris and I had been inseparable for months now, and as we continued our whirlwind romance, we found ourselves enjoying a variety of positions in the bedroom. Two weeks after my cast was removed, we experimented with missionary and doggy style. I was excited to hear that her family was moving to Northern Oklahoma, where her dad would be working on a new section of the interstate highway. Although it meant a longer drive for me, I was determined to make our relationship work.

School started, and Kris was in her junior year of studying research in infectious disease control. Kat, on the other hand, was thriving in her senior year of high school. Perhaps it was the new school or her new friends, but she seemed more confident and open with Kris about sex. I, on the other hand, was still navigating the challenges of our relationship.

As I found myself visiting Oklahoma less frequently, I started to reconnect with some old friends from school. We’d meet up and I’d find myself in the company of a couple of guys who’d join me in some… extracurricular activities. I’d also started dating a nice girl named Carly, who suspected that my weekend trips might involve another woman, but she never pushed for commitment.

My buddies asked me if I’d considered marrying either Kris or Carly, and I replied, “If one of them gets pregnant, I will.” I was determined to make our relationship work, even if it meant exploring other options in the meantime.

As the weeks went by, I found myself spending every Friday and Saturday night with Kris, and our sex life became more frequent. Her parents were aware of our relationship, and they began to “allow” her to stay with me. I knew it was a strange arrangement, but it worked for us.

When March rolled around, Kris surprised me with a shocking request: she wanted Kat to join us at my Holiday Inn room. “Uh, I guess she can,” I replied. “Does she have any idea what we do when we close that door?”

“Yes, she does,” Kris said with a smile. “And, Don, she wants to learn about having sex with a man. Here’s the deal: I’m on my period, and the last time we had sex during this time, I hurt for a week. So tonight, I want you to… well, you know.”

“WHAT? You want me to… are you serious?” I asked, trying to process the request.

Kris hugged me tight and whispered, “Please, Honey. Do this for her… and for me.”

I couldn’t believe what I was being asked, but Kris’s words were laced with a sense of urgency and desire. I knew I had to consider her request, but a part of me was horrified by the idea of sleeping with her sister.

“I hate to sound like a big brother,” I said, trying to stall, “but who’s going to take her to the prom?”

“His name’s Paul,” Kris replied. “I’ll tell you about him later. Just say you’ll show her what she needs to know… Okay?”

I knew I had to do this for Kris, but a part of me was still hesitant. As we prepared for the night ahead, I couldn’t help but wonder what lay in store for us.

Kat emerged from behind the door, excited and eager to learn. She hugged Kris first, then turned to me and said, “Thank you, Don, you’re so sweet. Let’s get started!”

Kat undressed in front of me, her body radiating confidence and desire. Before we lay on the bed, she had to touch and feel my stiff cock, her eyes widening in amazement. “Wow, that’s pretty neat,” she said, her voice filled with wonder.

“No, sugar,” I replied, “I always wear a rubber to keep Kris from getting pregnant. I’m gonna wear one with you, too.”

Kat smiled and nodded, and I could see the excitement building inside her. “I want you to eat my pussy,” she said, her voice barely above a whisper.

“Okay,” I replied, my heart racing with anticipation. “But first, I want to show you what it feels like to have your pussy licked and sucked.”

I got to work, my tongue and fingers exploring Kat’s body. She was a quick learner, and before long, she was moaning and arching her back in pleasure. Kris was watching from the side, a look of fascination on her face.

When I finally slid into Kat’s waiting pussy, she let out a small gasp of pain, but it quickly gave way to pleasure. I could feel her body rising to meet mine, and before long, she was in a state of constant orgasm.

As I rode her for three minutes, Kris caught her breath and whimpered, her eyes closed in ecstasy. I knew I had to give Kat more, so I rolled off and lay beside her, my cock still hard and ready.

“Wow, Sis, that was so… so… oh, God it was so good,” Kat said, her voice filled with excitement. “Thank you for sharing Don with me.”

Kris chuckled and replied, “Pfffffff… look again, honey. His dick is still hard. Give him a few minutes to get a second wind and change his rubber. If you want to pee or wash up a little, go ahead.”

As I took care of my business, Kat crawled onto the bed and started stroking me, examining my member closely. “If you screw me from behind, do you still need a rubber?” she asked.

“Honey, if I fuck your pussy, then yes, I need a rubber. But we can do butt sex, and there’s no way to get pregnant that way,” I replied, my mind racing with possibilities.

Kat’s eyes sparkled with excitement, and she asked, “Can you do me from behind in my pussy?”

I nodded, and we got to work, our bodies moving in perfect sync. I felt a sense of joy and excitement, knowing that I was exploring new possibilities with Kat.

As we finished up, Kris dropped her head to my lap and whispered, “Kat doesn’t get the last drop tonight.” I smiled, knowing that I had a lot to learn about this new dynamic in our relationship.

Over the next few weeks, I found myself switching back and forth between Kris and Kat, exploring new positions and techniques. I was concerned that Kat might get pregnant when one of my rubbers broke, but I knew I had to make this work.

As I looked at Kris and Kat, I knew that I had to make a decision about Kat’s prom date. She had asked me to be her date, but I wasn’t sure if I was ready for that. I asked her to give me some time to think it over, and she agreed.

As I pondered my options, I knew that I had to consider Kris’s feelings as well. She was still my primary partner, and I didn’t want to hurt her. But at the same time, I couldn’t deny the connection I was feeling with Kat.

As I lay in bed with Kris, I knew that I had a lot to think about. I was torn between my love for Kris and my growing feelings for Kat. I knew that I had to make a decision soon, but I wasn’t sure what the future held.

“I’m so proud of you, Donnie,” Kris said, her voice filled with love. “You filled four rubbers tonight, and you made her so happy. You know she’s gonna expect that much tomorrow, too.”

“Tomorrow?” I asked, my mind racing with possibilities. “But I thought we were just… you know… having a little fun.”

“Well, my darling,” Kris replied, “this damn rag isn’t going away until about Tuesday. You need pussy, Kat has pussy. Like I told you, she loves you, too. There’s not a man in this world she’d rather fuck… I still feel a little funny saying that word, but you’ll be fucking her some more tomorrow… okay?”

I knew I had to accept this new reality, but a part of me was still hesitant. As I looked at Kris and Kat, I knew that I had to make a decision about our future together.

Summer was in full bloom, and I couldn’t help but feel a sense of excitement and anticipation as I gazed into Kris’s eyes.

“I’ll be okay, Kris,” I said with a reassuring smile. “If you want to go to the prom, that’s fine. Just remember, if anyone forces you or if Paul forces Kat, you know what I’ll do.”

Kris nodded, seemingly taking my warning seriously, before I leaned in to kiss her.

As I pulled away, I thought about the impending prom night and the girls I was planning to take with me.

“I’ll give you my new schedule,” I said. “I’ll be with you for the next two weekends, but after that, I’ll be back with Kat.”

Back in 1962, I lay on Kat’s delectable body, feeling a mix of emotions.

“What have I done?” I thought to myself, remembering the news I’d received about Carly being pregnant.

“I wasn’t planning on telling them until Sunday morning,” I rationalized. “Might as well enjoy myself while I can.”

I mounted Kat again, lost in the passion of the moment.

“Hey, how was the prom?” I asked Kris when she arrived back.

“It was great,” she replied with a sly smile. “But the best part was after the prom.”

“What happened?” I asked, curious about her tone.

“You trained us well,” she said with a laugh. “Paul and David were really exhausted by Sunday. Kris, I mean, had a lot of fun with them. I got Paul once and David twice, but I tied them to the bed and gave them both oral before letting them go.”

Kat had drained me a third time with her mouth by the time Kris returned, and the three of us left for supper and more intimate activities.

Supper was a rushed affair, but the sex that followed was anything but hurried.

Kris seemed disappointed that she’d missed out on the earlier activities between Kat and me, but I didn’t care. “Piss on her,” my mind whispered. “She’d been ‘unfaithful’ with David and Paul. I’d fuck her all I could and leave her in Oklahoma.”

I fucked each of them once, but anytime the subject of prom night came up, I tried to change the subject.

Kris finally let out her secret. “Dammit, Don Parker! Yes, I fucked both of them! I enjoyed every minute of it! I even enjoyed watching Kat have sex with them. You’re the only man I’ve ever had before, and the only one I want from now on. So there! You still want to fuck me, or are you through with me and want Kat instead?”

Kat stepped between us, her expression fierce. “You shut the hell up, Kristina Swensen! This whole idea was yours, not mine. If Don was mine, I never would have shared him with you, and I never would have cheated on him.”

I took Kat’s hands off Kris and told her it was okay, before spinning Kris to the floor and cramming my cock into her ass.

I busted her hard and fast, slapping her bare ass with each pump. When my load blew, I shoved her to the floor and told her not to move or I’d knock the shit out of her.

I hugged Kat’s naked body to mine, kissing her with as much love and passion as I’d ever given Kris.

“Sweetheart, I’ll never come back to Oklahoma again,” I whispered. “I’ll give you my new phone number, and you can call me anytime. If you ever get a chance to come to Kansas City, I’ll be hurt if you don’t look me up. I love you.”

I turned to Kris, who was lying in a heap, crying.

“As for you, Kris,” I spat, “get your ass in the air again, you little bitch.”

Kat touched my shoulder, her voice soft and soothing.

“Please don’t hurt her, Don. She does love you, too.”

Years went by, and I never crossed the Oklahoma state line again.

My marriage to Carly lasted over fifty years, until she passed away. Kat and I saw each other many times over the years, but she was killed in the World Trade Center on 9-11.

I read Kris’s obituary a few months ago – the big ‘C’ had taken her.

Rest in peace, my loves…