[MF] Cheating with my Brother-in-Law While Camping

A few years ago my sister and her husband (my brother-in-law), and I went camping to celebrate my completion of law school. I’d been working my ass to the grindstone for 5 years (I took a year off to get into better physical and mental shape). Finished top of my class and never felt better.

Anyway, my brother-in-low, let’s call him Eric, was an avid camper, and he was one of those types who liked to camp off-grid. You’re allowed to do this in most national parks, actually. You don’t need to camp at a designated spot. You’re fully legally allowed to hike off into the woods and camp wherever you want. So that’s what the three of us did. Me, my sister Camilla, and Eric.

Once we set up camp we got our fire going since the sun was setting and it was late summer early fall. We live in St. Louis by the way so it gets frigid pretty quickly. We were sitting around the fire, drinking hot cocoas with whiskey. Camilla has always been a light-weight, and I’d told her to slow down many times. After about 20 minutes of drinking and chatting (and the warmth from the fire) Cam went to bed in her and Eric’s tent. Literally one minute went by before we both heard her breathing change to that of someone deep in sleep. So Eric and I chatted it up.

We’d been friendly since we first met. And I could sense that we both held back a bit, when we spoke to each other, out of mutual respect for my sister (his wife). But there was definitely an attraction.
The night was getting colder and we hadn’t collected enough fire wood to rekindle the fire, so we ended up cozying up closer to one another. Eventually, Eric grabbed the sleeping bag out of his tent (without waking his wife, suprisingly) and brought it out for the two of us to get in.

At first I was hesitant to get in the sleeping bag with him but I wasn’t tired at all. Eric was an astronomy major and he was going on and on about the different stars in the sky, super nerdy space stuff, tbh. Eventually our bodies naturally snuggled in closer to each others.

At this point we were handing the flask of whiskey back and forth during conversation and I was starting to get quite light-headed. And horny. Laying this close to my brother in law was so taboo. Needless to say, I was soaking wet. I had taken my hiking boots off but still had my jeans, tank top, and jacket on. He had changed into sweats, a t-shirt, and a puffy north face jacket earlier.

Out of nowhere I felt his lips on mine. I whimpered as he started kissing my neck, and my shoulder. My hand immediately shot down to his bulging cock. I slid my hand under the waistband of his sweats and felt his incredibly hot and massive cock. The girth was insane. He moaned, quietly. At this point his tongue was down my throat and I was slowly rubbing my thumb over the tip of his penis as my hand grasped it.

“Are you sure you want to do this?” I whispered to him as I spit in my hand and moved it back to his cock.

“Cassidy…doesn’t fuck me anymore,” he said barely getting his words out. “I’m pent up and I don’t know what to do about it.”

“She doesn’t fuck you….,” I began. I was interrupted by his thick, rugged hand finding the wet spot between my legs. I whimpered loudly.

We both paused, waiting for any sign of Cassidy stirring. There was none. He slid 2 of his fingers in my pussy, suddenly, and roughly, once he knew my body had consented. I bit down on his shoulder…trying to muffle any sound that would betray us.

He began moving his fingers in and out. Slamming them in. This man was not being gentle. He knew what he wanted. I began to match the rhythm of his fingers with my hips. “She…she doesn’t fuck you at all?” I was finally able to get out.

“No, not since last year when she thought I was cheating. I wasn’t. But she doesn’t believe me.”
“Why doesn’t she believe you?” I could feel pre-cum leaking out of the tip of his cock. I rubbed my thumb over it and used it as lubrication on his cock.

“Maybe because of how I look at you?” Suddenly, and with incredible strength, he flipped me over on my side, with my ass pressed up against his cock. With one hand, he unbuttoned my jeans, unzipped them, and then reached around back and forcifilly shoved them down so my ass was exposed.

“I’m going to fuck you.” He whispered in my ear. I could feel the penetrating heat of his cock resting in my ass crack, waiting for my permission.

“Fuck me in my ass,” I whispered. “I’m ovulating right now and I’m not on the pill.”

“I don’t have any lubrication,” he said, inching his cock deeper into my asscrack.

“I don’t care. Fuck my ass dry. Fuck me Eric.”

With that signal, Eric did just that. In one, fluid and intentional movement, Eric shoved his cock all the way into my dry asshole. I bit down on my jacket, and drew in a deep breath.

“Are you okay?” He asked…pausing, cock-deep in me.

“Mhmm…,” I whimpered. The mixture of pain and pleasure were overwhelming. “Fuck me,” I whisper, chokedly.

He began thrusting. One pump. Two pumps. Three. Relentless, unforgiving thrusts into my bare ass. I began slamming my ass up against his hips as he drove his cock deeper and deeper into me.

“Fuck..yes Eric. Yes. Just like that. Fuck this tight little asshole.”

“I’ve wanted to do this for years you stupid little slut. I see the way you look at me. I see the way your eyes rest on my cock for that split second when you think no one’s looking.”

At this point Eric reached around and slid his hand up under my tanktop and cupped my right breast. He began pinching my nipple.

“I’m going to cum soon,” he said, increasing the speed of his pumps.

“I want….*thrust*…you…*thrust*…to cum…*thrust*…down my…*throat.”

“Okay baby,” he whispered. “Are you ready?”

“Yes, baby,” I said, slamming my hips as hard as I could into him.

“I’m going to cum!” he said, louder than he should have. I quickly flipped around and found his cock with my hand and then shoved my mouth over the tip. Not a moment too soon. He began unloading pump after pump of hot, salty cum into my mouth. He was moaning exctatically. With one hand on his balls, I slid my mouth as far down his cock as humanly possible. At this, he shuddered even more, releasing pump after pump of hot cum directly down my throat.

A short while later, after cuddling in the sleeping bag and finishing off what was left of the whiskey, we both headed to bed. I stayed in the sleeping bag, by the dwindling fire and he stumbled back into the tent.

The next day we left as if nothing had happened. This was 5 years ago and neither one of us has ever copped to anything. They’re still married, surprisingly, though seems to be getting less happy as years go on. Who knows, maybe I’ll invite them camping soon?

Source: reddit.com/r/gonewildstories/comments/qhf1fx/mf_cheating_with_my_brotherinlaw_while_camping