It started as a joke [Incest, Masturbation]

It started as a joke.

A simple “Oh yeah, we fuck all the time,” said with a twinkle in my eyes and a grin on my lips. I was just trying to embarrass my little brother in front of his new girlfriend while we took a dip in the pool. He’d been looking at my blue bikini-clad body a little too much, and she couldn’t help but comment in a good natured way. I had to hand it to her, she was sure confident. My brother though? Not so much. He turned bright red out of embarrassment and vigorously stated that we do not, under any circumstances, fuck.

I remember his girlfriend, a cute blonde named Anna, immediately asked, “But why not?” I couldn’t help but laugh. She continued with a smirk, sharing how he had a thing for tall, fit brunettes just like me. I’ve got amazing abs, perky little tits, and gorgeous eyes, she said with a sweet smile. Surely he’d thought about it? I wasn’t totally sure she wasn’t hitting on me. I honestly wouldn’t have minded either – she was definitely hot.

My brother, Ben, didn’t even know how to defend himself from an assault on two sides – from his sexy sister on one side and a shorter, busty blonde girlfriend on the other. So, he did what all horny college-age boys tend to do when caught in something they won’t admit: lie with all the stammering conviction of a toddler who still has the scent of forbidden chocolate on their breath. Neither one of us was convinced, but we decided he was red enough to let the matter drop for the time being. But it wasn’t forgotten.

Truth be told, I’d gotten more of a rush out of teasing Ben than I thought I would. He was a good looking guy – the skinniness of youth was starting to erode with maturity and time in the gym. He finally got his mop of hair under control (after months of my cajoling), but the rest of his body was still silky smooth. He was starting that transition from cute college boy to a true man. It wasn’t plain to see why it was easy for him to get Anna’s attention, even though she had the perfect kind of curvy to get most any guy.

So, I couldn’t help but bring up Ben’s stunningly bad denial in the pool the next day. I grinned as I mocked his stuttering rejection of the idea. I playfully accused him of stealing a pair of panties I’d actually thrown out a month ago because they were worn out. I laughed as I saw his blood pressure immediately shoot through the roof. Of course he hadn’t stolen my stuff! He hadn’t even been in my room the last couple weeks. “So you have been in my room,” I said, “doing what exactly?” He yelled he was just looking for the switch we shared. “Of course you were,” I replied.

I decided to switch tactics just to bug him even more. “You just think I’m ugly, don’t you?” I put on a bit of a fake sob suddenly. Ben being the perfect combination of gullible and owner to a big heart, immediately softened and put his arm around me. Of course that’s not it! I’m a very sexy woman, he said, but also his sister. It wouldn’t be right to think about me that way. “What if I wanted you to?” I asked, but I couldn’t hold back my smile at the horrible porntastic line. I laughed at his horrified face as he stormed off at my overplayed joke.

—

A couple weeks later, I found myself hanging out with Anna, who was turning out to be a very cool cat in her own right. We had decided to try shopping together after we’d gotten some coffee together. She brought up how funny she thought Ben was in the pool. I shared how I tormented him the day after, a story she laughed far too loud at, making me laugh again in turn. We agreed: he was cute when he was embarrassed.

Then she told me she had an idea. A very naughty idea. We ducked into an athletics store, and before I knew it she was handing me a strappy sports bra and yoga pants that sat low on my hips. Then, she started snapping photos on her phone. Getting into the spirit of things, I started posing, showing off my abs, then my butt, then my back and arms. Anna couldn’t stop herself from egging me on in our prank, telling me ,“Damn you’re hot.”

Then she took her turn to model her own athletic wear – all part of the ruse. Finally she sent the album of my photos to Ben. When he inevitably panicked, she gave him nothing more than an “oops” and her own photos. We laughed endlessly. Then she upped the game. She needed to make sure he was looking at the photos. She sent him a follow-up. “Do you think your sister looks good in those photos?”

“She works out.” The answer came.

“Not what I asked. I need a man’s opinion. Would she catch your eye at the gym?”

“Sure, I guess.”

“Sure? Come on, I’m trying to hook a sister up, gonna need to do better than that.”

“Fine, yes. She looks hot.”

“Hmm, okay. I was going for ball-burstingly sexy, but that’s a start.”

Then it was my turn to text him. “Hey, thanks for the fashion advice! Nice to know you think I’m hot.”

“Dammit. I thought we were over this!”

“Nothing wrong with telling me if I look good. Nice to know those hours at the gym are worth it. Can I get your advice on a few more looks?”

The wait took a moment. “Fine.”

And we were off to the next store. We started him off easy with tops and jeans. Then we got into dresses. Steadily it got more and more normal for him to say what was actually on his mind. We started with prodding him for responses like, “Your butt looks good in those jeans.” We ended with unsolicited messages like, “That’s a lot of cleavage. Hot.” I had to admit I was getting a bit turned on by the whole charade. But that’s where it ended for the day with Anna.

—

It turns out Ben actually has a pretty good taste for fashion. He had a good eye for fit and didn’t settle for mediocre fabric or styles. So, in the weeks that followed it became a totally normal thing to ask him if he thought I looked good in an outfit. When he did make a suggestion, it was pretty much always a good one.

I still teased him about how we were fucking behind Anna’s back, but now he went along with it. He started teasing right back about how I couldn’t get enough of his cock, and I would simply shrug and say it wasn’t my fault he got hard just by looking at me all the time. Wouldn’t be very sisterly of me to leave a family member hanging like that.

Still, that didn’t mean he was fully comfortable with the joke. I accidentally walked in on him in his bed while Anna was in the bathroom one day. I hadn’t realized they were in the act, so I was a bit shocked to find him stark naked on his bed, stroking an impressive member. I’m not sure how long it was before he noticed. Long enough to admire how it glistened and throbbed covered in lubricant, and long enough to feel my eyes watch his abdomen contract as he caressed his own manhood. I felt a pang of heat developing in my own stomach when I heard him cry out in horrified shock. I left immediately.

A couple days later I had the courage to invent a remedy. I would send him a naked photo or two of myself. But as I did it, it simply didn’t feel like enough. Besides, I was getting turned on trying on various tiny bits of lingerie. Finally, I decided to switch my phone to record…

I started out with a crop top and a pair of short shorts on. I made eyes and faces at the camera: sticking my tongue out, pouting, that sort of thing. Then I started to touch myself in a performative way – exaggerated, really. I didn’t have any experience making porn, so I’m positive it looked like crap. Things got more interesting as I hastily peeled off the outer later, revealing a see-through bra and lacy panties that showed the outline of my pussy lips.

Steadily, I forgot about the camera as my hands moved over my own body. Suddenly, it was easy to roll my hips as my hands slid down my toned abs, and back up to my barely covered breasts. I remember being shocked by how stiff my nipples were under the thin fabric. I couldn’t stop thinking about Ben’s gorgeous cock and that adorable shocked look on his face as I played with myself. Soon enough, my eyes were fluttering closed as a sigh escaped my lips. My top didn’t stay on long, needing to feel full contact with my sensitive nipples.

I felt the heat in my chest and belly build. I looked back to the camera, needfully this time, as if it would come over and join the play. I thought about how I was going to send this to Ben. He was going to watch as a hand slipped back down my tummy, as I slipped it under the tiny panties I had on. I thought about how I might get him turned on with my body. I thought about how wet I felt between my own fingers because I was doing this for him. Fuck.

Finally, I slipped my panties off and let the camera have a beautiful view of my pussy. The skin all around it was glistening wet. I had shaved just before, so it felt smooth and pleasant to touch. The breeze from the ceiling fan only intensified the sensation across my bare chest, belly, and mons. I could hardly keep my hand off my clit. It all felt so good. My eyes fluttered as a wave of pleasure washed across me. I slowed down, leaving just a single finger to tease the little bulb of sensitivity.

My eyes went to the camera again even as I circled it gingerly. I felt my abs contract hard, threatening to send all of me over the edge. I gasped uncontrollably. “*Fuck! I hope you’re jerking to this…*” Did I just say that? I did. And I liked it. I smiled, and leaned into it. “I want you to stroke that cock of yours to your big sis. You made me all wet after all…” I trembled, another wave coming even closer, forcing a moan from my lips. Only this time the pleasure didn’t recede far enough before the next one came up over it.

For a moment I hung on the precipice, but ultimately I was unable to keep total control of my own fingers and I leapt off into the abyss of pleasure. I screamed out as my body tightened, my face with it. I found myself imagining my brother’s toned body rubbing against mine, and I found myself quivering again, grunting as I contracted again and again. Finally it subsided.

It took a moment to come back to awareness. By the time I had, I panicked, thinking how far over the line the whole thing was. But it was too late. I’d already pushed send.

Source: reddit.com/r/Erotica/comments/pjcymb/it_started_as_a_joke_incest_masturbation