She came home that night with her dress wrinkled and her panties in her purse.

I was sitting on the couch when she walked in, legs shaky, makeup smeared. She didn't say a word at first. Just dropped her keys, kicked off her heels, and looked at me with that fresh-fucked glow.
"His name's Marcus," she said, voice low and hoarse. "He bent me over his kitchen table and fucked me raw. Came inside me twice."
I felt my cock twitch instantly. This was what we'd talked about for months, the dirty fantasy we kept circling but never crossed. Now it was real. My wife had just let another man use her.
She walked over, hiked up her dress, and straddled my lap. Her pussy was still wet and leaking. I could smell him on her. "Feel that," she whispered, guiding my hand between her legs. My fingers slid through thick cum that wasn't mine. "He stretched me open. Told me I was his slut for the night."
I pushed two fingers inside her. She moaned and started grinding on my hand. "He made me beg for it. Said if I wanted his cock I had to tell him how much I needed it. I told him my husband wanted to watch next time."
She reached down, freed my dick, and sank onto it without warning. Her cunt was hotter and slicker than usual, full of another man's load. The wet sounds were filthy as she rode me hard.
"Fuck, you're loose," I growled, grabbing her ass. "He really wrecked you."
"Yeah," she panted. "He flipped me around and took me from behind while I held onto the table. Kept telling me what a good wife I was for taking a stranger's dick. I came so hard I almost blacked out."
I thrust up into her, mixing my cock with the mess already inside. She leaned down and kissed me, letting me taste the salt on her lips. "He wants to come over this weekend," she said between thrusts. "Wants you to watch while he fucks my throat first. Then he said he'd put me on all fours and rail me until I can't walk straight."
The image hit me like a punch. My balls tightened. She felt it and clenched around me. "You like that, don't you? Knowing your wife is going to be a cumdump for him while you sit there stroking your dick."
I flipped her onto her back on the couch and pounded into her. She wrapped her legs around me and kept talking dirty. "Next time he's going to bring a friend. Two bulls using your wife at once. One in my pussy, one in my mouth. You can watch me swallow while they stretch both holes."
I came hard, adding my load to the one already inside her. She held me there, milking every drop. When I pulled out she reached down and scooped some of the mess onto her fingers, licking them clean while staring at me.
"Clean me up," she ordered, spreading her legs. "Taste what he left in your wife."
I dropped between her thighs and buried my tongue in her sloppy cunt. The taste was thick and musky. She grabbed my hair and ground against my face while I licked her clean, making her come again with a sharp cry.
Later, lying in bed, she told me the rest. How Marcus had texted her at work, how she'd met him at his place after her shift, how he'd made her strip in his doorway and suck him on her knees before he even closed the door. How he'd bent her over and fucked her without a condom because she told him she wanted it bare.
She rolled over and stroked my cock back to life. "I'm going to do it again," she said. "As often as I want. And you're going to hear every filthy detail when I get home."
I didn't argue. I just pulled her on top of me again and let her ride while she whispered the next plans. Her pussy was still dripping, still hungry. By the time we finally fell asleep she'd come three more times and I was empty.
The next morning she left for work with a fresh pair of panties and a text from Marcus already lighting up her phone. I watched her ass sway out the door and knew our life had changed for good. She was going to be the wife who came home used, and I was going to be the husband who cleaned her up and got hard all over again.