All characters are at least 18 years old.
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It all started when I got caught.
"What..." said an outraged feminine voice from behind me.
On instinct, I turned around to face her, my nose still buried in a pair of used panties. My twin sister Sabrina was standing in the doorway, her sports bag slipping out of her fingers and dropping onto the floor.
"...the fuck," she finished flatly, her eyes wildly flicking between my own, her panties in my one hand, and my erection in my other. In my lustful stupor, I made time to notice the tight sports bra and tiny gym shorts she was wearing, as well as the thin sheen of sweat to complete the look.
"Please don't tell mom," I blurted. It was all that I could muster. I hadn't even begun to work out how to deal with my sister's reaction, how to even explain this. Though it would've been futile anyway; it wasn't as if I could say I'd tripped into a single garment in her laundry.
"Get out of my room," she seethed, her face contorting in contempt and disgust.
I managed to utter a dumb "We share a room, Brie," before she stomped a foot and whipped a finger out of the bedroom we shared.
"Get out, Stefan!"
I at least made the wise decision to put away my still-throbbing manhood before slinking past her, after which she promptly slammed the door behind me. I was still clutching her panties, but I highly doubted she wanted them back now. I rested my forehead against a wall and cursed my stupidity. My life was over. At the very least, I'd be her dog for the rest of our lives.
Hastily, I stuffed Brie's panties into my pocket. If mom saw me holding them, she'd rip me to shreds where I stood. Not like the men in our family had a stellar reputation these last months.
Dad had run off with a hot young thing not much older than me and Brie. Mom had "won" custody of the two of us. Guess dad didn't want us kids interrupting his time with Jessica. However, in an insane turn of events, he'd kept the house in the divorce, forcing the three of us to move out. Mom had scrambled to find this place, a two-bedroom apartment with walls like paper, which brought me and my sister to our current predicament of sharing a room. Thank Christ we at least had our own beds.
It was about half an hour later when Brie opened the door. "Get in here," she snapped after giving me a baleful look that indicated she was surprised I was still there. She'd changed into more comfortable clothes and apparently opted to wipe herself down rather than walk past me to the bathroom. Her dark hair was still in a tight ponytail, and it swished when she jerked her head, directing me to sit on my bed, which I obeyed. Afraid to meet her critical gaze, I stared at my fingers as they fidgeted in my lap, and after she closed the door we stayed silently like that for what felt like years. Finally, she broke the tension.
"Then I guess I'll start," she bit out. "What the hell were you doing?"