r/dirtypenpals•
opaliterp

[F4M] My Boyfriend's Brother is a Bad Influence

NSFW

I shyly clung onto the arm of the slightly taller guy who stood beside me, chatting with some of the guests. This was not my usual scene: a loud rambunctious party, drunken people falling over themselves, shouting, and chaos.

My boyfriend had invited me over to his house while his parents were out of town because his brother decided to throw a party. He wasn't the usual type to participate in his older brother's antics however he had been trying to grow closer to his brother for quite some time now. He figured that maybe if he tried to enjoy one of these parties instead of thinking he was too above letting loose, they would find middle ground.

Me, on the other hand, I was not a party girl. I had never been a party girl. I was a stereotypical "good girl," neat clothing and a quiet little voice. I had initially rejected the invitation to attend his party however it would give me a reason to spend time with my boyfriend. I wasn't going to pass that up.

It was incredibly apparent how much I didn't fit in to this unruly crowd. As the girls wore dresses that hugged them so tight that you could see the outline of every feature, or skirts that hid absolutely none of their privacy, a very loose dress hung to my skin. It was only tight up top with a very tasteful plunge in the neckline, only showing just the smallest inch of cleavage, and the rest of the dress falling flowy down my hips and cutting right above my knees. The flowy skirt hid my round hips, thighs, and behind just how I liked it. I did not even plaster my natural face with any makeup whatsoever. My round full lips and doe eyes hidden behind thick lashes didn't need it. My long brown hair flowing down my back in gentle sweet curls.

My boyfriend was talking to one of his brother's friends. I didn't hear their conversation nor did I participate. I chose to stare blankly like a deer in headlights as a girl flaunted herself all over a darkly dressed man, covered in tattoos. My brows furrowed as I watched her be shoved off and the man stand to walk in our direction.

My boyfriend looked up and perked up a bit. He smiled as the man approached us. "Hey," he said. "I invited my girlfriend over if that's alright. This is Alyssa," he gestured towards me with a flex in the arm I was holding desperately tight. I glanced upright and happened to make direct eye contact with you.

I was shocked for a second. I took you in. Where your brother was mostly polite, respectfully dressed, and very gently bodied, you were large, dark, and rugged.

I caught myself staring and chose to quickly smile. "It's nice to meet you..."

----

Hi!

Yes, this is a very clique "good girl and bad boy" trope. If you don't like it, don't respond!

I'd love for this to be a slow burn and long term story where your character slowly influences mine to do certain things, show her things, until her mind is corrupted with her desire for yours sexually and romantically. My character is still a virgin! I love deflowering and is a big kink of mine so I would need this to be incorporated later on.

I'd love for you to play someone who's kind of an asshole, sarcastic, smug, possessive, jealous, but a bit soft for someone he cares for. But ultimately someone who has the need to claim mine as his and his only. Eventually it doesn't matter if she was his brother's first.

I love large muscular men, lots of tattoos, some face piercings, glasses, and large cocks.

My kinks:

DDLG, breeding, face grabbing, neck grabbing and soft choking, breeding, mating press, manhandling, eye contact, dirty talk, mirror sex, risky sex and groping, hold the moan, having my pussy ate, being fingered, multiple orgasms, face sitting, blowjobs, swallowing cum, coercion, manipulation, deflowering, size differences, large cocks, anal, finger sucking, thigh riding, begging, shower sex, hair pulling, riding, car sex, skin markings, pet names, sexy outfits and lingerie, cheating, public play, praise, aftercare, passionate sex.

Limits:

Toilet play, musk, odor, feet, rimming, painal, gore, weapons, beast, illegal ages, ear fucking, milking, unrealistic sizes, race play, abuse, degradation

Posted Mar 30, 2026, 6:23 AM UTC

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