I’m 23, not the poster boy for Hollywood looks, but I know I’ve got something going on. My body is sculpted from working out at the gym two to three times a week. I have toned my legs and arms. My back is broad, and I’m content with that. I’ve got deep blue eyes that make certain women lose their train of thought. 

Then there’s Julie, my 21-year-old sister. She’s two years younger than I. Julie is slim-thick. She has a nice, round ass. Her short dresses hug her body well and show off her soft ass and perky tits. 

Julie’s personality is just as bold. She’s adventurous and unafraid to push boundaries. She’s my sister, yeah, but she’s also my best friend and the nastiest girl I’ve ever fucked. Our bond is tight, but it’s gone way past what anyone would call normal. She’s my not-quite-girlfriend; I consider her my girlfriend, who’s not my girlfriend, because that’s the closest I can get to describing it.

This is our story, how we got here, and where we’re headed next. 

It began a few months after we both graduated from college. Back then, we were both single and figuring out what came next. I was crashing at our parents’ place, same as Julie. Both of us were in that weird post-campus limbo. 

One night, she barged into my room to borrow my laptop charger. Hers was dead. I was sprawled on my bed watching some teen porn. Instead of freaking out or leaving, Julie plopped down next to me and said, “That’s my kind of porn.”

We shared a hearty laugh. 

But deep down, I felt embarrassed. She told me there’s no shame in being addicted to porn. We ended up watching it together. The room got hotter with every scene. Neither of us planned what happened next. The porn had us both worked up, and when our eyes met, Julie admitted she hadn’t been with anyone in a while. She had broken up with her ex sometime back. She said she missed having sex but had no one to scratch that itch. I was single, too. Maybe it was because of the heat of the moment, but I offered to be her “fuckmate.” 

She looked at me and said, “Fuck it, let’s do it.” 

We did it right there on my bed. I fucked her tight pussy so hard. I was so paranoid about getting her pregnant that I pulled out and came on her belly. She said it was one of the best fucks of her life. Then Julie leaned down and sucked me off like it was her calling. That’s how I was hooked.

From that night on, we couldn’t stop. We unlocked this secret part of each other. Julie became my “headmistress,” the term I gave her for how she owned my cock with her mouth. I’d cum in her mouth, then she’d swallow it, and share it with me in a kiss. 

We’ve now fucked on dates, in parked cars, and even in church once. Julie is the one person who gets me. I’d be lying if I said I don’t get a little possessive. She can date whoever, but the thought of her with someone else twists my gut. I’d rather share her than lose her. We made a deal early on. We agreed she can date whoever she wants, but on one condition. Any guy she’s with has to be down for a threesome with me. 

I love Julie more than I can put into words. But there’s also this undercurrent. She’s my sister. I know we’re playing with fire, and I always wonder how long we can keep this up. Society wouldn’t get it. Our parents would also lose their minds. 

But when I’m with her, none of that matters. That first night, when she sucked me off, I knew I’d keep her forever. 

The Church Date

Julie and I decided to spice things up this weekend with a church fuck date. It’s something we hadn’t done in a year. The church was this small, old-school place with wooden pews and stained glass. It remained quiet once the congregation cleared out. 

We rolled in late, around 11 AM. Julie and I slipped into the back row like we cared about the sermon. Well, we were counting the minutes until we could be alone. 

The pastor droned on about salvation. We nodded and flipped through the hymnals. But under the surface, we exchanged glances. We couldn’t wait to get our hands on each other. 

As soon as the sermon wrapped at noon and the pastor dismissed everyone, we stayed back. We told him we needed “more time to process the lesson.” He bought it, said the house of the Lord was always open to everyone, and left us to it. 

The second he was gone, we bolted to the main door and snapped a padlock on it to keep out any stragglers. We turned to each other with grins. 

I moved to Julie first. My hands found the zipper of her tight little dress. I pulled it down slowly, savoring the sight of her smooth back. I kissed her skin as it appeared. She moaned softly. The sound made me horny. 

Her white panties came into view. It hugged her soft ass. I grabbed her left cheek and gave it a light spank. 

“Oh, sweet Christ!” she cursed. 

Then I unhooked her bra and let it drop to the floor. She turned to face me. Her lips crashed into mine in a hungry kiss.

“Can I undress you?”

“Yes, go ahead.”

My dick was already hard as hell. She unbuttoned my shirt and tossed it to the side. Her fingers teased my cock through my khaki trousers as she unzipped them. 

“Can’t wait to suck this.”

I grabbed her ass again and squeezed those soft cheeks and gave her another gentle spank. She tugged my trousers down, and we were half-naked.

The Altar Scene

Julie took my hand and led me to the altar to do the dirtiest thing imaginable. 

She dropped to her knees. 

Her eyes locked on my six-inch cock like it was her favorite toy. 

She stroked it gently and called it her “big boy,” then spat on her palms and smeared it over my shaft, jacking me off. 

“Keep your eyes on me,” she said. 

I did as she rubbed my shaft with her thumb. 

“Sweet Julie.” 

She kissed the tip, parted her lips, and slid my cock down her throat. 

I grabbed her hair, then pushed her head closer and felt her choke before I eased up. 

She asked me to recite her favorite verse, Song of Solomon 7:7-8 (NIV):

“Your stature is like that of the palm, and your breasts like clusters of fruit. I said, ‘I will climb the palm tree; I will take hold of its fruit.’”

My voice was steady while she sucked me faster. Her tongue worked magic. Her lips were on me, and the altar beneath us. 

The blasphemy of it pushed me to the edge. I spat in her face and told her to keep going, that I was close. 

“Cum in my mouth!” 

My balls tightened, my legs shook, and I came hard, flooding her mouth with my cum. She swallowed half, then stood and kissed me deeply. We shared the rest of my cum in her hot mouth. 

“So Yummy!” 

She was proud as hell that we’d fucked on the altar again. She had missed the thrill of doing something so wrong in a sacred place.  

I noticed how we were so exposed. 

“We gotta go before someone knocks.” 

We scrambled to pull on clothes in a rush. 

I unlocked the padlock, and we slipped out, acting like nothing had happened. 

As we walked away, I asked her where I’d fuck her face next. 

“Movie theatre. But this time, you’re cumming inside me,” she purred. 

I saw the excitement in her eyes.

The movie theatre was a solid idea, and I was already counting down to Sunday.

“Next Sunday can’t come soon enough,” she added as if she were reading my mind.

Sadly, I doubted if we could continue keeping our affair a secret. Someone might catch us, or Julie might find a guy who changes the game. Maybe our feelings would fuck us up. But I still loved her, and she loved me. We would continue to chase more highs until the world catches up. 

*The author is open to tips.*