Romi's Bra and the Thrill of Being Watched
I fiddled with Romi's bra, the one belonging to my little stepsister who secretly craved her big bro's cum. It was soft. Warm. I swallowed hard. The texture is insane.
Even though she had that sexy slender build, Romi wasn't completely flat-chested. She had something there, small but present. And in a way, that made it all the more exquisite. I'm not a total tit guy, but sexy slender? Hell yeah. As long as she's not underage, everything's fair game, right? Breasts that were there but barely—a perfect case of less is more. No excess, just pure aesthetic perfection.
I toyed with the bra, then brought it to my nose. Her body scent lingered from earlier. "Sniff, heh heh, haaa." I inhaled deeply from Romi's scent-soaked bra, chuckling like a fiend. Felt like a damn drug addict.
I dropped my pants and gripped my cock. Stroked it up and down. This thing's even bigger now? I was a bit shocked. From what I knew, even hard it was a notch above average. But right now? Unprecedented. If my usual erection was a longsword from some medieval fantasy, this was Guts' Dragonslayer. Fucking insane!
My throbbing meat stick reeked of pure male musk, panting like a beast. All that pent-up lust boiled inside my cock and ballsack. I licked my lips, feeling it swell in my hand. It's my dick, but damn, it's huge. Like the limit's been lifted.
Slowly but surely, I started jerking off. Still sitting in the tub, I spread my legs wider. Caught my breath and pumped my cock hard. The shaft started heating up. Slap-slap-slap-smack. Slap-slap-slap-slap. A rhythm flowed from my lower body. My strokes set the beat. My breathing grew ragged.
I clutched the bra tight. Just a bit more of that scent. I sniffed it deep, then licked it, sticky and slow, like tonguing Romi's nipple. My whole body ignited. All the blood rushed to my cockhead. My balls trembled. Whoa, fuck. A girl's bra does this to me? Wonder what her panties are like?
No panties this time, unfortunately. But it didn't matter. Imagining Romi watching me, I jerked harder. I had a plan for that—if she asked about the cum stains, perfect.
Hngh, haa. I paused for a sec. Couldn't blow it too soon from overdoing it. I wanted to savor this. Rubbing the bra on my face, I grinned. Yeah, let's pretend Romi's straddling me, grinding those tits in my face.
Lust and imagination fused, making my cock quiver. The head pulsed bigger, precum beading at the tip. Staring at that clear droplet, veins bulged one by one along the spongy shaft. This ain't a dick anymore—it's a weapon. On the bed, any girl would tap out to my jiu-jitsu.
Faster strokes now. Sniffing the bra, I slowly stood. Then, a sound pierced the quiet. Creeeak.She's here!
Today's ploy: let Romi catch me jerking off on purpose. Show her I see her as more than family. Test her reaction too. If she really hates me, she'll scream or tattle to Stepmom. But if not...?
I perked my ears. Footsteps approaching, then stopping short. "Hic? Ngh."
I ignored it, buried my nose in the bra, and leaned against the wall. Rocked my hips back and forth, jerking more furiously. Solo masturbation relies on imagination, but with a pretty girl watching? Instant boner fuel.
I mixed in some moans. "Ngh, haa. Romi, I like you. So cute, so sexy, haa." Calling her name on purpose, I stroked fast. My flushed-red cock sloppily drooled precum.
I pictured Romi on her knees before me, parting those pale pink lips to swallow my cockhead. Grgh, that day's coming, right? Sniffing the bra like mad, I chuckled. Like a total perv obsessed with his stepsis.
My balls heated up like they were melting. I murmured huskily, "Romi, hngh, Romi, please. I want you. No one's touching you but me. You're mine."
Declaring my possessiveness like a vow. I could say it because I knew she was near. Rubbing the bra on my face, I rocked my hips gently. Slowly lowered the bra. "Haa, titfuck me, Romi. I want your paizuri."
Grinning flushed, I wrapped the bra around my cock. Started grinding my hips, rubbing against the fabric. Felt the flesh chafe as I thrust wildly, like pounding Romi's pussy. "Hngh, ngh, hngh! Romi, how's it feel? Good? You like it? Now with your mouth, ngh."
Panting wildly, hips pistoning. Cockhead twitching like it was about to burst. Faint sounds in my ears—Romi's ragged breathing. "Can't hold back anymore. Romi, take it. It has to be you, my first, hngh!"
I slammed my hips with all my might. Felt her hot gaze, racing toward climax. Gritted my teeth, focusing. Ballsack vibrating. Now—cum on the bra!
Heart pounding like it would explode. Breath coming in gasps like asthma. Still, knowing someone watched filled me with satisfaction as I licked my lips. Wrapped the bra around the head and yelled, "Cumming! Grraaah!"
Spluuurt! Spurt-spurt! Spluuuurt♡ I unleashed everything, mind blanking. It pierced the bra, arcing into the air. Even after, my balls kept vibrating, pumping out thick white ropes. Hips bucking, I finally finished.
I'd painted it white. "Haa, hngh, fuu."
Looked down. The bra was soaked in dense semen, sticky and unrecognizable. I placed it back where it was and grabbed my pants. Footsteps gone. That should do it.
Headed to the sink, wiped my hands and cock. The monstrous beast that spewed seed was tame now. I smirked. Yeah, right?
The door was ajar. I'd definitely closed it. Stepped out. No one there. Probably back in her room. Mission success?
Debated peeking into Romi's room to gauge her. Nah, overkill. No need. She saw for sure. Now just watch her reactions, get close naturally, touch her. That's the play. No need to play the virgin nerd.
Back to my room. Lay on the bed, exhaled deep. Heart still racing. Truth was, jerking off with an audience was a first. Always handled it solo. I was alone back then.
But not anymore. I had women to share it with now. Irresistible ones under the name of new family. So this is the thrill. Like when Sis masturbated outdoors. I chuckled. Kinda get it now. But outdoors? Too nerve-wracking.
Caught my breath. Conquer 'em one by one, and maybe I'll end up with a harem I never dreamed of. Grinned and relaxed. Time to observe. It's on my side.

Romi returned to her room and stood there dazed. Haa, what the hell? Is he insane?!
Leaning against the closed door, she panted. Hand on her chest without thinking—then startled. Her heart was pounding like mad.
"What? Why am I like this? No, fuck! That thing he did."
Her face turned tomato red. How could she not be shocked? The guy she thought was just her bro—a clean-cut hottie—doing that.
"Crazy, crazy crazy crazy!" Romi covered her face with both hands, shaking her head. Total confusion. Was this real? Or a nightmare? What the fuck, loser! Why jerk off out of nowhere? And his dick—fucking huge!
And it wasn't just any wank. He used her bra. Unbelievable. The stuff of wet dreams, right in front of her. What is this? He sees me as a woman? Not Mom or Sis, but me?
How to process it? Couldn't believe it. Memories flashed to first meeting Si-hyeok. Taller than expected, sharp-featured face that hit right. And handsome. The kind that triggers protective instincts?
Heart fluttered. From that very first moment. His looks clicked instantly. So she hid her true feelings, teasing relentlessly. Acted like family. Real siblings do that, right?
But it was tough. She held back. Korea doesn't tolerate incest, blood or not—family's family. Or so she thought. What the hell is this!
Never imagined he saw her as more than a sister. Still reeling. Hidden cam? Nah, too detailed for that. Not the time!
She slipped out, scouting carefully like a spy on a mission. Crept into the bathroom. "Eek!"
A thick night-bloom scent hit her immediately. Spotted the bra. Picked it up gingerly. Drenched in sticky white cum. "Loser, you fucking psycho! Haa."
Heat rushed to her face. Looked like it needed the washer. Bathroom had one, no biggie. But him jerking to her... "Hngh."
The overpowering night-bloom musk dizzied her. Addictive. "But damn, he came a ton. Do guys always shoot this much?"
Swallowed dryly, brought the bra closer. Sniffed cautiously. Musky male hit first, then the thick night scent invaded. Harsh at first. But keep sniffing... kinda good? Want it as air freshener.
Tongue out hesitantly. No clue anymore. One thing clear: she wanted to taste the real thing. "Loser like you, not bad."
Tongue tip touched sticky cum. New sensation. Teased it, then licked it up. Scooped every bit into her mouth. "Hmpf, slurp! Mmmph♡"
Dazed expression, tongue swirling the half-mouthful of semen. Tilted her head. So thick. Like aloe? Or sticky soup.
Swallowed carefully. The slimy trail down her throat wasn't great. But the scent hooked her. Eyes curved stickily. What now? What do I do, you loser! Sigh.
Sighed, slumped down. Couldn't pin the feeling. But her body was honest—panties soaked with arousal.
And just like that, Si-hyeok crashed into Romi's life.