I had the video on my phone for three days before I used it. My stepsister Lena, twenty-four and always acting like the perfect daughter, had no idea I’d installed the hidden cam in her bedroom after she moved back home. There she was, on her knees sucking her married boss’s cock like a desperate slut, moaning loud enough for the mic to catch every wet sound. I waited until our parents left for their weekend trip, then cornered her in the kitchen.
“Delete it or I swear I’ll tell everyone,” she hissed, eyes wide when I played the clip.
“Not happening,” I said, stepping closer. “You’re going to do exactly what I say, or this goes to your boss’s wife, your friends, and Mom and Dad. Understand?”
Her face went pale, then flushed. She knew I wasn’t bluffing. “What do you want?”
“First, take your shirt off. Right now.”
Lena hesitated, then pulled her tank top over her head. Her tits spilled out, full and heavy, nipples already tight. I reached out and squeezed one hard. “Good girl. Now the shorts.”
She pushed them down, standing there in just a tiny thong. I could see the wet spot already forming. Blackmail made her wet. I unzipped and pulled my cock out, thick and hard. “On your knees. Suck it like you sucked him.”
She dropped down, glaring up at me, but wrapped her lips around the head anyway. Her mouth was hot and tight. I grabbed her hair and shoved deeper, making her gag. “That’s it. Take it all the way. You’re my fucktoy now.”
She worked me with angry strokes of her tongue, spit running down her chin. I fucked her face until tears streaked her makeup, then pulled out. “Bedroom. Now.”
In her room I bent her over the bed, ripped the thong aside, and slammed into her pussy in one thrust.
She was soaked. “Fuck, you’re dripping for your brother’s cock,” I growled, pounding her hard. The wet slap of skin filled the room. Lena moaned despite herself, pushing back to meet every thrust. I reached around and rubbed her clit fast until she came, clenching and shaking, cursing my name.
I didn’t stop. I flipped her onto her back, spread her legs wide, and drove in again. Her tits bounced with every stroke. “Tell me you want it,” I demanded.
“I want it,” she gasped. “Fuck me harder.”
I did, gripping her throat just enough to make her eyes roll back while I hammered her. When I was close I pulled out and shot thick ropes across her stomach and tits, marking her. She lay there panting, cum cooling on her skin.
But I wasn’t done. Over the next two days I used her whenever I wanted. Morning blowjobs in the shower, her swallowing every drop. Afternoon quickies where I bent her over the couch and filled her pussy while she tried to stay quiet. Nighttime sessions where I tied her wrists to the headboard with her own panties and ate her until she begged, then fucked her raw until she squirted around my cock.
The power shift was total. She stopped fighting and started craving it. On the last night before our parents came home, she came into my room naked, climbed on top, and rode me slow and deep. “Don’t delete the video yet,” she whispered, grinding her clit against me. “I like being your dirty secret.”
I grabbed her hips and thrust up hard, making her come again. We finished with her on all fours, my handprint red on her ass, my cum leaking down her thighs. She smiled over her shoulder, satisfied and owned.
The blackmail stayed our little game. And Lena kept coming back for more.
