she jokes with her step-brother and he rubs him and cums on his pants jeans,bad Step Sister

Title: My Naughty Step-Sis & Her Tempting Jeans Game

I’ve always had a secret crush on my step-sister, Mia. With her huge tits, thick ass, and piercing green eyes, she’s the total package. So when she barged into my room one afternoon, talking about playing some silly game, I was skeptical. But the way those tight jeans hugged her curves had me sold.

“Come on bro, it’ll be a laugh!” she giggled, twirling a lock of blonde hair around her finger. “Every time I point at something, you have to touch yourself. Let’s see how long you last before messing in your pants like a horny teenage boy!”

Little did she know, I was already halfway there just from the sight of her. Against my better judgment and her incessant pleading, I agreed to play along with her stupid “game”.

She backed up, arms folded under her ample bosom, and extended a slender finger towards my wall. “Point one: that teddy bear.”

Trying to act casual, I glanced at the stuffed animal, then casually tucked my hand into my jeans pocket. Laughing, she shakes her head. “No no, you’re supposed to do it right beside your- you know! And you can’t fake it, or it doesn’t count.”

Flustered, I glanced around nervously. Who knew what dumb stuff she’d make me do next?

“Okay, point two!” she chirped merrily. “That lamp.”

Groaning internally, I began to clumsily fondle myself right there in front of her, trying to make it look as believable as possible. The discomfort was intense – my rigid shaft strained against the denim, begging to be freed.

She raised an eyebrow, looking far too amused. “You’d better rub harder than that if you want to finish this round. Poor baby’s tiny pecker looks so lonely in there.”

“P-Please Mia, don’t tease me,” I begged, cupping the throbbing lump. Her smug grin only widened, sensing herishment over me.

As the day wore on and the game continued, she kept me on edge, making me touch myself growingly more often and with less subtlety. My jeans felt like they would split any second, an iron rod twitching inside. Wantonly, she even bribed me with sexy cringes when I really put my back into it – if she knew how close I was, she’d put the poor lad out of his misery already.

Then, as the final point, she stunned me with the cruelest twist yet. “Last one: me!”

My jaw dropped. Her hand reached out towards her own crotch, jeans already unbuttoned and zipper down. Steam practically poured off me as I haphazardly pawed at my cock through the denim, watching in awe as she slowly peeled her jeans and panties down those thick milky thighs.

“There you go baby brother, all for you,” she cooed, revealing her dripping bare fundament. The intoxicating musk hit my senses like a truck. With her free hand she reached behind to spread her cheeks apart, peering back at me wickedly.

Unable to hold back any longer, I unleashed my aforementioned “tadpole” from its prison. Mia giggled as I yanked it up and down, spittle flying, flinging my hips at thin air in desperation as usual. With all eyes on her rump, she began to grind her hips and massage herself, moaning out loud for my benefit.

“Ohhh fuck yessss!” she squealed like a whore, glistening pink folds peeking out with each jerk of her wrist. “Wow bro, you really are creaming yourself like a little boy, aren’t you? Watching this hottie of a step-sister? Oh! Shit…” Her body quivered and shook, signaling her own building climax.

I could tell she was being extra loud and slutty just to mess with me. In fact, I suspected she never actually finished at all – probably aimed to leave me hanging, blue and frustrated. Not that it mattered, because right then and there, I couldn’t hold back any longer.

“FUCK!” I roared, doubling over as my cock erupted like a geyser. Mia watched in cold amusement as thick globs of translucent semen burst from my slit, splattering against the front of my jeans in a huge wet patch. I collapsed back onto my bed, spent and humiliated.

“Ahahahaha!” she doubled over laughing, wiping a tear from her eye. “Oh my god, now THAT was priceless! I can’t wait to show this video to Mom and Dad. Good thing they’re on that cruise, huh bro? They’ll get a real kick out of their little boy creaming his sorry jeans like that, thanks to ya older sister!”

She patted my shoulder patronizingly before strutting out of the room, ass swaying, still fully exposed from the waist down. I shivered, realizing she’d left me sitting in my own mess, unable to walk far with soaked, sticky underpants glued to my skin.

But goddammit did it feel so good to finally release after all that teasing. I’ll never live it down, and she’ll always have embarrassing material to use against me. Still, my cock wept and throbbed just from reliving how good it felt, just from remembering the sight of my dirty step-sister flashing me that perfect booty.

Yeah, I’d pay good money to do that game all over again… if only I wasn’t so afraid of what other dirty tricks she’d have up her sleeve. Or down her jeans.

Either way, I owed them a good deep washing after today. Both the pants AND the printer!