I came home early from work and heard the bed slamming against the wall in our bedroom. My roommate Lena had always been a slut, the kind of hot girl who walked around in tiny shorts with her ass cheeks hanging out and no bra under her tank tops. She knew exactly what she was doing when she started flirting with my boyfriend Jake every time he came over.
I stood in the hallway and listened. Lena was moaning loud and filthy. "Fuck me harder, Jake. Shove that big cock in my tight pussy." The wet slapping sounds were unmistakable. I pushed the door open and saw them. Lena was on all fours on my bed, her huge tits swinging while Jake pounded her from behind. His hands gripped her hips hard, pulling her back onto his dick with every thrust.
Jake looked up and saw me but didn't stop. His face was flushed and he kept slamming into her. "She's tighter than you," he grunted. Lena laughed and pushed back against him. "Yeah, tell her how much better my cunt feels." I stood there frozen, watching his thick cock disappear into her shaved pussy over and over. Her juices were coating his shaft and dripping down her thighs.
Lena reached back and spread her ass cheeks so I could see everything. "Watch him fuck me, bitch. He's mine now." Jake slapped her ass hard and fucked her faster. The bed creaked and Lena screamed when she came, her pussy clenching around his cock. Jake groaned and pulled out, shooting thick ropes of cum all over her back and ass.
He didn't even look sorry. Lena rolled onto her back and spread her legs, rubbing his cum into her skin. "Come here and clean me up," she told me. I should have left but I walked over instead. Jake's cum tasted salty on her smooth skin. Lena grabbed my hair and shoved my face between her legs. "Lick his cum out of my pussy too."
I did it. My tongue pushed into her wet hole where Jake had just been fucking her. She was soaked and swollen, and I could taste both of them. Lena moaned and ground her cunt against my mouth while Jake watched and stroked his cock back to hardness.
When he was ready again he pulled me up and bent me over the bed next to Lena. He yanked my panties down and shoved his cock into me without warning. It felt different knowing he had just been inside her.

Lena watched and fingered herself. "That's right, use her pussy to get ready for me again." Jake fucked me rough and fast but pulled out before he came. He climbed onto the bed and fed his cock into Lena's mouth. She sucked him clean while looking me in the eyes.
After that night it was over between me and Jake. He started coming over just for her. I'd hear them in the living room, on the kitchen counter, in the shower. Lena was loud and nasty every time. "Fuck my ass, Jake. Stretch my tight hole with that big dick." I'd listen from my room with my hand between my legs, hating how wet it made me.
One afternoon I walked in on them on the couch. Lena was riding him reverse cowgirl, her perfect tits bouncing while she took every inch of his cock in her ass. Jake had two fingers in her pussy and she was squirting all over the cushions. When she saw me she smiled and kept bouncing. "Want to watch him fill my ass?"
Jake grabbed her hips and thrust up hard. Lena came again, screaming, and Jake followed right after, pumping his load deep in her ass. When he pulled out cum leaked out of her stretched hole. Lena made me get on my knees and lick it up while she held my head down.
Jake moved in with us a week later. He barely touched me after that. He only wanted Lena. She'd fuck him in our shared bedroom with the door open so I could hear every dirty detail. "Your boyfriend's cock feels so good in my cunt. He's never going back to your loose pussy."
The worst and hottest part was how much she enjoyed stealing him. Lena would text me pictures of Jake's cum on her face or dripping from her pussy. "He's mine now. Hot girls always win." I hated her and I wanted to be her at the same time.
Eventually I moved out. The last thing I heard before I left was Lena riding Jake in the living room again, telling him how much better she was than me while he groaned and filled her up. She won. She took him with her hot body and filthy mouth, and she made sure I knew it every single time she let him fuck her.
Jake never looked back. Lena got exactly what she wanted, and she made sure the sex was loud, raw, and constant so I'd never forget how easily she stole him.